Electrical
Diesel Engine Glow Plug Timer Relay Failure - Options for Repair
Here is an option to replace the pre-glow factory unit with a reliable manual controlled relay
What's wrong with my Mercedes?
Electrical Problems
Electrical
Troubleshooting an Electrical Problem
Unknown battery drain, electrical shorts, blown fuses - these can be difficult to isolate!
Electrical
O.E. Aluminum Fuse Failure
One of the most common problems we see on older Mercedes.
Electrical
Weak U.S. Round or Square Headlights on 1985 and Older Models
Installing H4 headlight upgrades will make a difference between night and day
Electrical
Buffing and Sanding in Tight Places
This is one of Kent’s favorite tools to have around the shop
Electrical
Removing the Buzzer Switch From an Ignition Lock Assembly
Not as easy as it looks and easy to break if you don't know the proper tricks
Electrical
What Could Go Wrong When Changing an Ignition Switch or Steering Lock??
If the wiring plug falls apart on you, you won't know what coded wires go where!!!
Electrical
Removing a Tumbler from a Steering Lock if the Key Won't Turn
It is possible to do this but you have to cut the black cap off first.
Electrical
Removing a W123 Fuse Box Cover
Talk about a Chinese jig saw puzzle. Kent can show you the trick
Electrical
Cleaning Up Ugly Battery Post Corrosion
You can do it with commercial products or something in the cupboard
Electrical
Ignition Switch Wire Plug Comes Apart Accidentally
You will need a wire schematic to figure out which wires go into which holes
Electrical
Problems with Glow override Solenoid Relay Installation - How to Test
Kent will show you some quick checks to test operation
Electrical
How to Open up and Clean Old Electrical Plugs
Corrosion on the contacts can cause all kinds of electrical problems
Electrical
Removing a W123 Diesel Big Battery
Can it really be all that difficult?
Electrical
Engine Won't Turn Over When It Sits Overnight
Do not assume it is just a bad battery! Diagnose first...
Electrical
Replacing a Badly Burned Wiring Harness
Don't let anyone kid you... this is not an easy job!
Electrical
Battery Staying Charged During Prolonged Vehicle Storage
You have a couple options to keep the battery alive!
Electrical
Lost 116 and 123 Fuse Box Location Chart
Knowing what fuse does what is a must when troubleshooting electrical problems
Electrical
Inaccurate or Erratic Fuel Gauge
This could be caused by one or even a combination of three things.
Electrical
Fixing or Replacing a Broken Hirschmann Power Antenna
Originals are hard to fix and not available new - Universal new antenna may be best option
Electrical
Service Requirements for Power Antennas
Yes, they do need service if you want them to last.
Electrical
Charging a Totally Dead Battery
Some chargers won't start the charge cycle without some help
Electrical
New Tumbler Installed and Key is Stuck - HELP!
We are getting too many emails like this usually after parts are bought somewhere else
Electrical
Testing Diesel Engine Glow Plugs for Proper Operation
Burned out glow plugs, bad pre glow relay, blown fuse, wiring - all need to be tested
Electrical
Rear Door Power Window Failure
Do proper testing BEFORE ordering parts or removing door panel
Electrical
Rear Door Power Window Failure
Do proper testing BEFORE ordering parts or removing door panel
Electrical
Knowing How to Use the Cruise Control Lever on Older Mercedes
We share with you the factory instructions for most models from the late 1970's to late 1980's
Electrical
Premature Glow Plug Failure
If it is happening on a regular basis it probably is not bad glow plugs
Electrical
Properly Maintaining an Old Car Battery
Neglect is probably the No. 1 Cause of your Benz not starting
Electrical
OM 636 Diesel Engine Slow Starts
Tired of it taking sooooo long to heat up your glow plugs
Electrical
My New Power Antenna is Not Working
It just may not be wired properly. Most likely it is NOT the antenna.
Electrical
Power Antenna Failure
There is a quick fix as well as a more permanent repair
Electrical
Best Way to Fix a Non-Working Odometer or Speedometer
Kent recommends just sending it out for professional repair
Electrical
Frequent Glow Plug Failure
If you are constantly having to replace glow plugs do not immediately blame the plugs! Ream the carbon!
Electrical
Fuse Repeatedly Burns Out?
Isolate the source of the short to finally solve your problem
Electrical
Key Not Springing Back From the Start Position
This is a sure sign your electrical switch is going bad
Transmission Problems
Transmission
Diagnosing, Adjusting and Fine Tuning Mercedes Automatic Transmissions
You CAN do this yourself if you have the right information and equipment!
Transmission
Automatic Transmission Erratic Shifts
Proper diagnosis is priority one - then repair! DIY testing and repair kits available.
Transmission
Does Your Automatic Transmission Really Need Replacing?
Be careful to not let someone sell you a rebuilt transmission!
Transmission
Transmission Oil Leaks
Some leaks are not difficult to fix. Others require removal of the transmission
Transmission
Component Failures Due to Lack of Lubrication
You might be surprised at just how many problems and failures could be avoided with periodic and proper lubrication
Transmission
Rattling or Loose Automatic Shifter Linkage
New bushings will solve the problem and possibly prevent disaster
Transmission
Reviving a High Mileage Automatic Transmission
How to improve performance and prolong the life of a tired gas or diesel automatic transmission
Transmission
Checking Automatic Transmission Fluid Level
There is a proper way to do this to determine proper level inside transmission
Transmission
Manual Transmission Shift Linkage Binding
The transmission will bind or won't shift if worn bushings are out of adjustment
Transmission
Repairing Leaking Transmission Cooler Metal Pipes on Older Diesels
Often caused by loose fittings and engine vibration
Transmission
1968 to 1981 Automatic Transmission Won't Go Into or Slips Badly in Reverse
Yes, you are fortunate there is an adjustment!
Transmission
Broken or Leaking Transmission Bowden Shift Control Cable
Both problems require removal and it can be a little "tricky"
Transmission
What To Use in Place of Dexron III Automatic Transmission Fluid?
Watch the video and Kent will explain his recommendations.
Transmission
Preventing Transmission Oil Pan Leaks
Be Kind to Your Transmission Pan Gasket!
Transmission
Isolating and Repairing Diesel Engine Fluid Leaks
Find the actual source of the leak before jumping to conclusions
Transmission
Diesel Automatic Transmission Oil Cooler Line Wear
This can leave you stranded if not caught early enough
Transmission
Measuring Automatic Transmission Fluid Level
Minor frustration for most of us who service our own transmissions
Transmission
Filling an Automatic Transmission to the Correct Level
A medium frustration for most of us who service our own transmissions
Transmission
How do I inspect the transmission and related components on an Old Benz
Get a good light and get under the car.
Transmission
Dealing with an Over Filled Automatic Transmission
A major frustration for most of us who service our own transmissions
Transmission
What's Wrong Help Needed - Quick Links to the Most Common Problems
If you could just figure out what is wrong you know you could fix it!
Transmission
Installing New Seals in the Engine, Transmission or Rear End
Care must be exercised to prevent damage or premature failure
Suspension Problems
Suspension
Determining Parts Needed to Fix Loose 123 Chassis Front Suspension
Parts breakdown will help you find what you need fast
Suspension
Diagnosing Loose Front End Steering
Inspect the tie rod ends first for wear
Suspension
Diagnosing and Repairing Hydraulic Self Leveling Suspension (SLS )
If you have a Mercedes station wagon and want to use it to haul loads best to fix it right
Suspension
Loose and Rattling Exhaust System
Failure to replace the donuts could leave your exhaust dragging on the ground!
Suspension
Avoiding a Slipping Jack or Jack Stand When Raising Your Benz
This is what Kent uses and you can build it yourself!
Suspension
Trying to Determine the True Mileage of an Old Benz
The odometer can lie. Don't be fooled and make an expensive mistake!
Suspension
What is the best glove for working on your car?
Tips on how to make the gloves last longer!
Suspension
Mounting a Mercedes Wheel on the Hub
This can be frustrating without the right tool. Yes, there is a tool!
Suspension
SLS Suspension Riding Rough - How to Test Accumulators.
It is possible to test their condition on the car
Suspension
Trailing Arm Failure: WARNING!
On most models 1973 to 1991 trailing arms can collapse leading to dangerous consequences
Suspension
Catastrophic Front Suspension Failure
123 and 126 Chassis Owner's Alert
Suspension
No Room to Install a New Shift Rod Bushing on the Transmission
Sometimes you can only do it with our special tool - a few occasions you have to drop the rear of the tranny
Suspension
How to Make Your Alloy Wheels Look This Nice?
Not as hard or expensive as you might think. And yes, you can do it yourself!
Suspension
123 and 126 Chassis Front Torsion Bar Failure
Alert! Check yours before experiencing a dangerous suspension failure
Suspension
Broken Studs and Damaged Threads in Rear Sway Bar Links
This happens often enough you need to know the options available for repair
Suspension
Clunking Noise In Rear Suspension When Going Over Bumps
It could be a number of things including shock absorbers
Suspension
Diagnosing Strange Front End Rumbling Noises
Suspect front wheel bearings
Suspension
Hard to Remove Tie Rod Ball Joints
It may take a special tool
Engine Problems
Engine
Bad Motor Mounts can Ruin a Diesel Engine
Yes, Kent has seen it first hand. Don't neglect this!
Engine
Diesel Won't Shut Off When the Key is Turned Off
Could be any number of things causing the problem. Proper diagnosis is a must!
Engine
Oil Cooler Hose Leaks and Failure on Older Mercedes (especially OM 616 and OM 617 Diesels)
Failure of these hoses can lead to total destruction of your engine
Engine
Increasing Turbocharger Performance on Diesel Engines
Don't just ignore your turbo charger or major problems can occur!
Engine
Troubleshooting Diesel Engine Hard Starting, Low Power and Exhaust Smoke
Top problems for diesel owners. Kent recommends starting with the basics
Engine
Finding the Best Diesel Performance Upgrade
Injectors do not last forever. Changing over to Monark nozzles can boost performance!
Engine
How to Determine if Your Diesel Engine is Worn Out
Before spending any money on a tired or ailing diesel engine - check the compression first
Engine
Hard Starting Gas Engine
Don't neglect the fuel filter and fuel pump check valves
Engine
Engine or Climate Control Heater not Getting Hot
It is almost always a failed thermostat
Engine
Diesel Injection Pump Timing
Timing tends to retard over time with wear and chain stretch
Engine
Diesel Engine Oil Leaks
Most of those annoying leaks can be fixed with our DIY kits
Engine
Diagnosing Diesel Engine Knocking Noises
Diesel Purge can help you isolate the noise
Engine
617 Turbo Diesel Engine Rack Damper (Idle Stabilizer) Adjustment
This can help smooth out a rough shakey idle on an 5 cylinder turbo diesel
Engine
615 616 617 Diesel Engine Timing Chain Routing and Parts Needed
Good reference material if you plan to replace timing chain and related parts.
Engine
Inspecting the Voltage Regulator BEFORE it Fails and Leaves You Stranded
Do it very soon unless you know it have been done within the last 50,000 miles.
Engine
617 Turbo Diesel Timing Chain Tensioner Installation
This MUST be installed properly when replacing it or timing chain or engine damage can occur!
Engine
The Challenge of Overhauling a 615, 616, or 617 Diesel Engine
Applies to 220D 240D 300D 300CD 300TD 300SD 1972 to 1985
Engine
Worn Timing Chain and Guides
Failure of these chains can lead to catastrophic engine failure
Engine
Changing Your Power Steering Pump and Filter
This is often neglected and an easy D.I.Y. job
Engine
Isolating a Diesel Engine External Rattling Noise
Usually means something is broken or loose in the engine compartment
Engine
Keeping the Power Steering Fluid Clean
Many are surprised to learn there is a filter down inside the pump
Engine
Preventing Bolt or Thread Seizure
A special compound should be used - especially with steel bolts in aluminum threads
Engine
Exhaust and Intake Manifold Gasket Leaks on Older Diesel Engines
Alert for all Diesel Owners - Check for loose Intake / Exhaust Manifold Nuts.
Engine
Gas Engine Runs Rough
Sometimes fuel injector cleaner can work wonders
Engine
Rotating Your Engine During Service and Maintenance
Best done from the front crankshaft bolt
Engine
Removing Stuck Radiator and Coolant Hoses
An old hose can be very difficult to remove due to age and corrossion
Engine
Buying a Used Mercedes Quick Check No. 1
Your inspection should always include this
Engine
Testing and Adjusting Turbo Charger Waste Gate Assembly
A faulty 617 turbo diesel waste gate can really affect engine performance
Engine
Breaking Free Frozen Hex Bolts: Part 1
At all costs avoid rounding out the hex head of the bolt!
Engine
Finding a Replacement Turbo Diesel Oil Cooler
Some are no longer available new and the last ones will disappear soon
Engine
Inspecting and Replacing Rubber Exhaust Hangers
With the right tool and a little know-how it is super easy.
Engine
Garrett T3 Turbocharger Waste Gate Problems
You MUST make sure this is working and adjusted properly if you want your diesel to GO !!!!
Engine
How to do OVER THE TOP Engine Compartment Detailing
It takes work but with the right products and techniques you will be amazed
Engine
Removing a Broken Off Glow Plug
Not easy by any means. Options and ways to prevent it are listed here.
Engine
Using the Wrong Gasket Sealant
If you use RTV you can create some real problems
Engine
Cleaning Large Engine Parts
You actually may not need a large tank to thoroughly clean them
Engine
What Does a Healthy 240D Diesel Engine Sound Like
Listen and learn from a live video with sound.
Engine
How to Prevent Problems When Your Benz is Stored Over Winter
Do not neglect to give it Kents 30 day exercise program
Engine
Leaking Mufflers and Exhaust Pipes
If not too far gone you can fix them - and yes it is a miracle!
Engine
Removing Rounded Out or Damaged Hex Head Bolts
Avoid the pain of having to drill or cut the bolts off
Engine
Throttle Linkages Binding
Ball joints and pivot points should be lubricated on a 6 to 12 month basis
Engine
617 Turbo Diesel Loud Engine Rattle Noise
Common problem due the failed air cleaner mounts and mounting bracket
Engine
Curing the Common Valve Cover Oil Leak on the OM616 and OM617 Diesel Engines
A very common problem that requires MORE than just installing a new rubber gasket
Engine
Engine Won't Start? Could It Be the Distributor Cap?
You would be amazed at the pesky problems these can create!
Engine
Bad Diesel Engine Oil Leak at Front Crank Seal
We have a special kit with complete instructions so you can fix it yourself.
Engine
They Said it Only Needed a Head Gasket!
If the engine has been overheated it is almost never "just a head gasket"
Engine
Using Silicone RTV Gasket Adhesives
Alert! Use at your own risk
Engine
Curing an Intermittent Rough Running Diesel Engine
This can be a real challenge if the problem comes and goes either warm or hot
Engine
1976 to 1993 Gas Engine Shakes at Idle ( Runs Rough )
4 key performance related issues to consider. Do proper troubleshooting first BEFORE buying parts
Engine
Fan Belt Noises
They can be a little tricky to isolate
Engine
Plastic Radiator Neck Failure
An ounce of preventation is worth hundreds of dollars in repair
Engine
616 617 Used Diesel Engine Transplant / Major Service Requirements
Don't just install the engine without taking care of a number of potential problems
Engine
616 617 Diesel Starter Motor Replacement (1969 to 1985)
On some models this can be a difficult and frustrating job
Engine
Checking for Slow Power Steering Fluid Leaks
Check Your Low Pressure Power Steering Pump Hose
Engine
Keeping Things in Place - On and Off a Car
This is Kent's favorite
Engine
Troubleshooting Front Engine Noises on Newer Models
It will require the removal of the serpentine belt
Engine
Dealing with Problem Engine Studs
How to get the frozen nuts off and the stud back in safely
Engine
Badly Pitted Water Pump or Thermostat Housing Hose Nipple
If you don't fix it the problem will get worse and the coolant hose will leak
Engine
Diesel Motor Mount Bolt or Thread Damage
A real problem when changing an engine or the rubber mounts
Engine
Diesel Engine Camshaft Inspection and Adverse Wear
This can be a sign that the engine has not been well maintained
Engine
Securing Rubber Exhaust System Hangers (Donuts)
They can fall off especially if your exhaust system is sagging or not mounted properly
Engine
Avoiding Engine Trouble When Running Vegetable Oil in your Diesel
Fuel injectors will need the most attention
Engine
Diesel Engine Smoke and Lack of Power Problems - A Quick Reference Solutions Guide
Summary list of the most common causes and parts needed to fix them Part 2 of 5
Engine
Worn Out Engine Motor Mounts
How to determine if they need replacement
Engine
Understanding and Testing the EGR Valve
Find out what it does, how to test it, and what happens if it does not work.
Engine
Where in the World Can You Get a Good Shop Light?
You may have to make your own like Kent did...:-)
Engine
Challenges to Owning a 1985 Model W123 or W126 Diesel
Quite a number of changes for just a one year and final run of the 300D 300CD 300TD 300SD
Engine
Cleaning Old Engine Aluminum Parts
How can you do it without removing them from the engine?
Engine
Excessive Oil in the Intake and Compressor on Turbo Diesel Engines
This is normally not due to "leaking seals" inside the turbo charger
Engine
How to Restore the Paint on Your Black Engine and Chassis Parts
With the right paint and technique YOU can do it yourself!
Engine
Diesel Engine Starting Problems - A Quick Reference Solutions Guide
Summary list of the most common causes and parts needed to fix them
Engine
How to Determine the Real Condition of a Used Engine
It is best if you can see and hear it run - if not some tests are essential
Engine
Checking Out a Diesel Engine Before Purchase
Here are some quick checks you can do yourself to determine how good the engine is.
Engine
Removing a Power Steering Pump Pulley
Most often this can be done without special tools using a helper and a heavy hammer
Engine
How to Easily Add Life to Your Old Benz
You can do it with magnets!
Engine
Garrett T3 Turbo Removal from Turbine Housing
Sometimes it can be near impossible to get the bolts out and the parts separated
Engine
Diesel Engine Shut Off / Stop Problems - A Quick Reference Solutions Guide
Summary list of the most common causes and parts needed to fix them Part 3 of 5
Engine
Are There Better Shop Work Lights Out There?
Kent has been inspired to design his own series of ultimate shop lights
Engine
Swapping Different Engines into My Old Tired Diesel
When you engine wears out - look seriously at swapping in a different engine
Engine
How to Get a Glow Plug Out Without Removing the Injector Lines
Some special tools can help
Engine
Identifying a late 1984 or 1985 617 Turbo Diesel Engine with Trap Oxidizer
Parts are different so it is important to know which engine you have!
Engine
Finding a Strange Ticking Noise in an Alternator
If you don't look closely this one can be hard to find!
Engine
Diesel Engine Fluid Leak Problems - A Quick Reference Solutions Guide
Summary list of the most common causes and parts needed to fix them. Part 5 of 5
Engine
Avoiding Internal Engine Corrosion
You neglect the maintenance here and you WILL pay the price
Engine
Slow Loss of Coolant and Minor Drips Around and Under Radiator or Coolant Tank
Be sure to check your radiator / expansion tank cap
Engine
Locating the OM616 and OM617 Internal Engine Timing Marks
These can be hard to see if your engine is dirty and you don't know the exact location
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Engine
Diesel Engine Knock and Noise Problems - A Quick Reference Solutions Guide
Summary list of the most common causes and parts needed to fix them Part 4 of 5
Engine
Diesel Injectors Still Not Working Properly After Rebuild
It is not the problem with the new nozzle - there are other issues that cause poor spray
Engine
Removing a Stubborn Power Steering Pump Pulley
Sometimes they are really stuck on the shaft!
Engine
Possible to Fix a Broken Off Plastic Tank Radiator Neck?
If the break was clean and the tank still solid you can be repair it for less than $50.
Engine
Rattle Noise Coming From the Front of the Engine
Fan clutch can make metallic clinking noises
Engine
Finding a Use for Old Diesel Engine Parts
Sometimes you just have to take a break from working on your diesel... :-)
Engine
Keeping Your Engine and Engine Compartment Clean and Detailed
Are you concerned about damage to the electrical components and sensitive electronics?
Engine
Problems Adjusting Diesel Valve Clearances
You of course need the right wrenches - but if one or more won't adjust - what then???
Engine
How to Tell if Your Thermostat is Failing?
Monitor your engine temperature gauge in the morning for telltale signs.
Engine
I Installed a New Timing Chain and It "Jumped" Some Sprocket Teeth
Now the timing marks don't line up - What do I do! - Help...
Engine
Rubber Exhaust Hanger ( Donut ) Replacement
These can be a little tricky to get on
Engine
Problems You Might Encounter Running Biodiesel
Biodiesel is not too kind to rubber
Engine
Gas or Diesel Engine Runs Too Hot or Too Cold
Too Cold think thermostat - too Hot think a number of possible causes
Engine
Draining Oil Out of Your Engine
The best way is to use an oil extractor
Engine
How Hard is it to Change the Glow Plugs?
With the right instructions this is a beginner DIY job.
Engine
Excessive Engine Oil at the Inlet or Outlet of the Turbo Charger
It could be turbo seals but it could also be excessive diesel engine blow-by
Engine
Cleaning an Old Dirty Oily Diesel Engine
There is a better and cleaner way!
Engine
Diesel Engine Transmission Torque Converter Flex Plate Failure
This can be difficult to diagnose
Engine
Diesel Engine Front Crank Bolt Failure and Loss of Pulleys
Pay attention! This is very common and can happen to you if you own a 1968 to 1985 diesel
Engine
Getting an Old Mercedes Diesel to Start Quicker
Tired of waiting for the glow plugs to heat up - we have the answer!
Engine
Temporary or Emergency Repair Kit Contents? - Especially When on the Road
Here are some of Kent's favorites - most you should carry in your trunk
Engine
Garrett T3 Compared to KKK Turbo Charger
How to tell which one you have?
Engine
Should I Buy a Cheap Mercedes?
6 part video series on reasons why you should or shouldn't
Engine
Plastic Radiator Neck Failure - It Can Happen Anywhere and to Anyone!
Even low mileage gas Mercedes as Kent recently discovered.
Engine
Is a Third Wrench Needed When Adjusting the Valves on an Old Diesel?
This is how Kent deals with the problem
Engine
Troubleshooting Diesel Engine Overheating
It could be a number of things causing the problem. Follow Kent's video series
Engine
Easy way to Drain Coolant from the Radiator
Applies to most models from 1980 to 1995
Engine
Starter Motor Grinds When I Turn the Key - How to Bench Test?
Could be the starter itself, ring gear on the flywheel or a combination of both
Engine
Loose Alternator Belt on 1970's Models
Adjustment procedure must be followed properly!!!
Rust / Corrosion Problems
Rust / Corrosion
Miracle Rust Repair for Your Old Mercedes
Yes there is! Miracle Paint and fiberglass cloth can work miracles.
Rust / Corrosion
Rocker Panel and Floor Permanent Rust Repair without Welding
You can do it yourself without the hassle and bad side affects of welding!
Rust / Corrosion
Welding in New Sheet Metal When Repairing Rust Out
Not always the best solution as you will see here.
Rust / Corrosion
What to do When you Get Tired of Working on Your Benz
Sometimes You Just Need to Go Have Some Fun!
Rust / Corrosion
Fixing Rust: Learning the Many Uses of Miracle Paint
It works on any type of rust - on any iron based metal - on any vehicle or part
Rust / Corrosion
123 Battery Box Area Rust
Do NOT neglect inspecting and repairing this area or you will be sorry!
Rust / Corrosion
Keeping the 123 Engine Compartment Front Water Drains Clear
Failure to do this can lead to big problems on these models
Rust / Corrosion
Stopping Small Areas of Rust BEFORE They Become Holes in The Body
It is all about prevention. Remember rust never sleeps!
Rust / Corrosion
Best Way to Prevent Water From Getting into Your Benz
Easy preventative maintenance you should do at least every six months... unless you live in the desert..:-)
Rust / Corrosion
How to Prevent Miracle Paint from Getting Hard in the Container
You have to keep the air away from it
Body and Exterior Trim Problems
Body and Exterior Trim
Badly Oxidized and Faded Aluminum Window Trim
It can be restored but it takes a special power tool and hard work
Body and Exterior Trim
Malfunctioning Non-Tilting Sunroof
Nothing like a good smooth working power or manually operated non tilting sunroof (up to 1985)!
Body and Exterior Trim
Avoiding Buying a Rusty Mercedes in the First Place
Be careful or you could end up losing big time
Body and Exterior Trim
Hood Pad Removal and Installation
They are ugly when deteriorated - beautiful when replaced properly!
Body and Exterior Trim
W116 W123 and W126 Chassis Wiper Drive Mechanism Failure
Regular cleaning and lubrication is the key to long life
Body and Exterior Trim
Restoring Faded Plastic, Chrome and Body Paint Imperfections
If is seems too good to be true - then in this case it is true!
Body and Exterior Trim
Missing Hold Down Plates for the W123 Battery Tray
Easily lost or rusted out - hard to find replacements
Body and Exterior Trim
How to Tell if Your Sunroof Seals Need Replacing
Knowing what to look for will help you decide if replacement is needed
Body and Exterior Trim
Filling a Dent with Minimal Effort
Put the body filler on in two phases and manage the time when you grate and sand it
Body and Exterior Trim
Best Way to Jack up and Support the Front End
W124 Chassis procedure shown here but applies to many models
Body and Exterior Trim
Finding Interior Color Codes
Location of the three digit numerical code and translation here
Body and Exterior Trim
W123 and W126 Hood Hinge Operation and Maintenance
2 Primary reasons these hood hinge assemblies fail
Body and Exterior Trim
How Best to Handle Tough Car Problems
Just take a break!
Body and Exterior Trim
Station Wagon Rear Hatch Won't Open or Stay Open
This applies to the W123 240TD, 300TD and 280TE and the W124 300TD, 300TE, and E320TE.
Body and Exterior Trim
Opening Up Stuck Doors on Old Mercedes
Most common when car has sat outside for long periods without use
Body and Exterior Trim
Priming a Repaired Dent on a Budget
You don't have to use expensive spray equipment or 2 part expensive primer
Body and Exterior Trim
How to Straighten Major Body Damage Enough to Get it on the Road
Depending on where the damage is you can do amazing things with jacks and hammers.
Body and Exterior Trim
How to Protect Your Car's Paint When Working on the Engine?
Nothing is better than a good thick fender cover
Body and Exterior Trim
Repairing Early Diesel Front End Damage
This is not expensive if you find used parts and do the work yourself!
Body and Exterior Trim
Side Body Trim Strip Removal and Repair
With the right tools and parts you can fix this nagging problem yourself
Body and Exterior Trim
Best Older Mercedes Diesel to Drive?
Kent shares three of his favorites
Body and Exterior Trim
Removing Damaged Door Striker Plate Bolts
Easy to round out the hex head bolts - then what do you do ?? !!!
Body and Exterior Trim
What to Do With Small Hidden Rust Spots?
If caught early enough they can be easily fix permanently with Miracle Paint
Body and Exterior Trim
Finding your Mercedes Factory Paint Color Code
This can sometimes be a real challenge if you do not know where to look
Body and Exterior Trim
Missing W123 Battery Hold Down Clamps
You are not alone! What can you do to replace those rusty or missing metal clamps
Body and Exterior Trim
Troublesome Trunk Seal Leaks
Be sure to look UNDER the trunk seal - you might be surprised!
Body and Exterior Trim
Getting Your Car to REALLY Shine
There is one amazing product Kent recently found that polishes it all!
Body and Exterior Trim
What is Causing Excessive Moisture in My Trunk
It could be coming from a number of places for a number of reasons
Body and Exterior Trim
Rust Along the Inside Bottoms of the Doors
Stop it BEFORE bubbles in the paint and holes start to appear!
Body and Exterior Trim
Avoiding Expensive Mistakes Buying a Used Mercedes Benz
The best way to save money is to buy the right car in the first place
Body and Exterior Trim
Finding the Best General Purpose Trim Adhesive
This one has just the right combination of benefits
Body and Exterior Trim
Getting the Windshield Washer Nozzle Sprayer to Work Properly
It is simple to clean out the hole and adjust it with the right "tool."
Body and Exterior Trim
Understanding the Difference Between a Non-Tilting Verses a Tilting Sunroof
Both are repairable by the DIY mechanic with the right knowledge and supplies.
Body and Exterior Trim
Exhaust System Rattles and Shakes
Fix it before it leads to major failure! Exhaust muffler found dead on road...
Body and Exterior Trim
Preventing Pre-mature Failure of Key Mechanical Components
Anyone want to guess what the secret is???
Body and Exterior Trim
Door Latch / Catch Failure
Failure is almost always caused by corrosion due to high moisture environment and lack of lubrication
Body and Exterior Trim
What is the Best Older Mercedes Benz to Buy?
Kent believes there is no one correct answer. Just too many options...lol
Body and Exterior Trim
Figuring Out How to Get a Trunk Emblem Off
It is a little tricky and very easy to damage it.
Body and Exterior Trim
Can't Open Hood Because the Release Cable is Broken
There is a way to do it without damaging anything on many older models
Body and Exterior Trim
Fixing the Most Annoying Problems on Your Old Mercedes
Most in this list are avoided due to cost - Fix them yourself with our kits and save hundreds $$$.
Body and Exterior Trim
Manual Operating Sunroof Service and Repair
Ignore it and you will be sorry! Can you remove and service it yourself?
Body and Exterior Trim
Why Drive a Mercedes Benz?
Until you have driven one it is hard to explain
Body and Exterior Trim
New Sunroof Seal Does Not Fit Right
It could be that you installed in upside down
Body and Exterior Trim
Removing Glued on 123 Chassis Front Fenders
Tough job and you will need heat! Also applies to 107, 114, 115, and 116 chassis
Body and Exterior Trim
Removing Plastic Body Fasteners
The right tool can do the job without damage
Body and Exterior Trim
Where to Start Your Restoration?
Start with something you can do yourself that is not super difficult and gives dramatic results.
Body and Exterior Trim
How to Get a New Hood Pad on Straight
When using contact cement you have one shot to get it right! Kent's video will show you how to prevent mistakes.
Body and Exterior Trim
Stopping and Detailing the Surface Rust Under a Car
You can do this in your own driveway with minimal tools and experience
Body and Exterior Trim
Can't Get My Sunroof Cable Out
My sunroof motor does not run or it runs but the cable does not move
Body and Exterior Trim
How to Get a Benz to REALLY Shine
Kent recently discovered one product that shines above all the rest
Body and Exterior Trim
W123 W126 W201 W124 Chrome Grill Strip Alignment
Tired of seeing little gaps show up?
Body and Exterior Trim
Removing the Rear Trunk Emblems
On 1973 to 1985 models this has to be done with care to prevent damage
Body and Exterior Trim
How to Get a Deep Shine on Older Faded Paint
In most cases it is a two step process - especially if your paint is faded.
Interior Problems
Interior
Inside Door Related Problems
Failure to do preventative maintenance could lead to some very expensive repairs
Interior
Ignition Key Sticking or Jamming
Steps to diagnose and repair it before it becomes a MAJOR problem. Steps to fix it after it does!
Interior
Ignition Tumbler / Key Wear
There are ways to reduce it - and we have ways to fix it!
Interior
Broken Down or Sagging Front Seat Bottom
D.I.Y. reinforcement kit available for 116, 123 and 126 chassis front seats
Interior
Detailing Your Mercedes for Professional Results with Less Effort
Using the right methods and products are the key to the amazing results
Interior
Ridding Your Interior of Ugly Spots and Stains
The key is in using the right products and techniques. Let Kent show you how.
Interior
Window Will Not Stay Closed Tight When a Regulator Fails
Here is a temporary fix until you get get the replacement parts
Interior
Door Panel Removal
Can be frustrating and a little mysterious if you have not done it before
Interior
Non Air Bag Steering Removal
Can be problematic without using the correct tools and techniques
Interior
Inside Rear View Mirror Removal and Replacement
Improper technique can break the mirror glass or permanently damage the ball socket
Interior
Removing a 1973 to 1985 Non-Airbag Steering Wheel
Care must be exercised to prevent damage to the steering lock mechanism
Interior
Removing and repairing the W123 Glove Box Door
Hardest part is removing that weird round slotted nut on the lower hinges!
Interior
Adequate Lighting When Working Inside Your Car
Indoor lighting can be difficult. Kent has recently found the ultimate solution.
Interior
Drooping or Floppy Sun Visors
There is a simple fix to keep those old sun visors up
Interior
123 Front Door Map Pocket Loose
Very common problem - easy fix once you remove the door panel
Interior
Rear Seat Removal
Procedure very similar from mid 1970's to mid 1990's
Interior
Front Window Stuck in the Closed Position
How to get the regulator out the door when this happens
Interior
Broken Manual Seat Adjustment Pull Handle
Very common problem on most 1970's and early to mid 1980's W123 and W126
Interior
Sagging Front Seat Back Net Map Pocket
You can fix it yourself with our simple kit
Interior
Auto Dimming Mirror Available for Older Benz?
Yes, for W107, W123. W126, W201 and W124 from 2phast Motorsports
Interior
Dash Wood Coming Loose
This is something you can easily fix yourself
Interior
W116 and W123 Broken Down Front Seat Swap
Broken, sagging, painful, tilting front seat bottoms ruin the driving experience!
Interior
Outside Rear View Mirror Trouble
Removing it, replacing it, lubricating it, replacing the glass with out breaking it - you can do it!
Interior
Preventing Ignition Tumbler and Steering Lock Failure
Cleaning and proper lubrication can add years to your key tumbler and save you hundreds $$$
Interior
Leaking Oil Under the Dash Below the Instrument Cluster
Sure sign of a common problem - leak in oil pressure gauge actuator
Interior
Finding the Source of Interior Water Leaks
This can drive you crazy. Never assume anything. The leak may be coming from a place you would least expect
Interior
Power Window Troubleshooting
When all else fails check the wiring
Interior
Turn Signal Lever Won't Hold Position When Pushed Up or Down
Tired of holding it up or down in a turn - Kent has a simple fix
Interior
I Can’t Find the Rear Bolts to Get My Seats Out
If you don’t see the head of the bolt then you have to …
Brake Problems
Brake
How to Diagnose Common Brake Troubles
Shake, side pull, binding, grabbing, grinding, squealing, overheating and soft / hard pedal issues.
Brake
Replacing Worn or Damaged Brake Mechanical Parts
Fixing brakes is not difficult and can save you hundreds
Brake
Flushing Old Fluid and/or Excessive Air Out of Your Brake System
Efficient and affordable pressure bleeding, system flush and fluid capture is here for all.
Brake
Brake Rotor Chatter or Pulsation
Causes and cures for this common problem
Brake
Determining If Your Brake Booster Has Failed
Don't be too hasty to buy a new one
Brake
Losing Brake Fluid During Brake Hose and Caliper Replacement
Some simple precautions can save a big mess and ease brake system bleeding
Brake
Protecting Your Health When Working on Brake Systems
This is not to be taken lightly!
Brake
Excessive Brake Pad Dust on Your Alloy Wheels
Can the problem really be solved? Kent has been on the hunt for a solution.
Brake
Hydraulic Clutch and Brake Component Rusting
Clutch and brake fluid can be unkind to your cylinders and pistons
Brake
Avoiding Brake Caliper Seizure
There are some signs that will let you know your calipers are locking up.
Brake
Chasing Brake and Clutch Fluid Leaks
If you are losing brake fluid the source must be found quickly
Brake
Removing Stubborn Front Brake Rotors from Hub
Must be done anytime you replace front brake rotors
Brake
Extracting Fluid from Brake Reservoir, Power Steering Reservoir and Automatic Transmission
After looking for years Kent has finally come up with the ideal no-spill fluid extractor
Brake
Preventing Front Fender Damage from Brake Fluid, Scratches and Dings
A good soft fender cover is the BEST solution!
Brake
Replacing Flexible Rubber Brake Hoses - ALL models
If over 15 years old then this is a must do job to prevent braking problems!
Fuel Delivery Problems
Fuel Delivery
Testing Diesel Fuel Injectors for Peak Performance
You will need a bench mount pressure release tester to do this yourself.
Fuel Delivery
Diesel Engine Fuel Filters
Major cause of sudden loss of power
Fuel Delivery
Fuel Restriction at the Internal Fuel Tank Filter Screen
A plugged filter inside your fuel tank can lead to hard starting and power loss
Fuel Delivery
Diesel Engine Fuel Leaks
The sources of fuel leaks and procedures needed to repair them are many
Fuel Delivery
Diesel Engine Prechamber Collar Nut Fuel Leaks
A unique special tool so affordable every diesel owner should have one
Fuel Delivery
102 103 104 Gas Engine Difficult or Slow to Start
Begin with the "back end" fuel delivery system first.
Fuel Delivery
Gas Engine Fuel Smells in Car
This one you definitely do not want to ignore!
Fuel Delivery
Stopping Fuel Leaks when Performing a Diesel Compression Test
The fuel from the injection pump can be shut off by following this tip:
Fuel Delivery
Old Diesel Won't Start After Fuel Starvation or Filter Change
You have to be sure all air is removed from the fuel lines and hoses
Fuel Delivery
Removing Stubborn Diesel Fuel Injector Heat Shield Washers with Special Tool
Applies to all 200D 220D 240D 300D 300CD 300TD 300SD 190D 300SDL 350SD and 350SDL
Fuel Delivery
Using Diesel Purge: The Best Medicine for a Sick Diesel Engine
Learn how this works so well and how you can do it yourself
Fuel Delivery
Diagnosing Diesel Engine Fuel Injectors
How do you know if they are bad? If they have not been recently rebuilt they probably are!!!
Fuel Delivery
Rebuilding Diesel Injector Nozzles - Warnings and Advisements
Must read info BEFORE you rebuild your injector nozzles
Fuel Delivery
How to Accurately Set Diesel Injection Pump Timing
With the right tools and procedure you can get precise results yourself
Fuel Delivery
Dirty and Plugged Up Fuel Tank
Lack of attention here will leave you stranded on the road!
Fuel Delivery
What to Expect When Getting An Old Diesel Running after Sitting for Over Three Years
Depends a lot on the climate and how the car was stored but you should always begin with new fuel and filters
Fuel Delivery
Diesel Engine Taking Too Long to Start in the Morning
If you know your glow plugs are working properly it could be a fuel pressure issue
Fuel Delivery
Fuel Tank Inspection and Service
Very important for cars over 20 years old.
Fuel Delivery
Fuel Leaks Between Diesel Fuel Injector Body Halves
More common than you think and easy to fix with right tools
Fuel Delivery
How Can You Tell if There is Algae in Your Diesel Fuel Tank?
Here are some ways to inspect for and prevent algae growth
Fuel Delivery
Fueling Your Old Diesel from a Fuel Container
Try to do this without spilling fuel on your car and all over the ground!
Fuel Delivery
Banjo Fitting Care and Maintenance
Fuel Line and Transmission Cooler Line Leak Prevention
Fuel Delivery
Removing and Installing a Diesel Engine Hand Primer Pump
This can be a frustrating challenge without the right tools.
Fuel Delivery
My OM617 Turbo Diesel Does Not Produce Good Power and Smokes Too Much
These are signs your turbo over boost protection system is not working properly
Fuel Delivery
How to Be Assured of a Quality Diesel Mechanical Fuel Injector
You need to look no further than the precision nozzles produced by Monark of Germany
Fuel Delivery
Diesel Injector Return Hose End Plug
How to make your own in a pinch
Fuel Delivery
Improving Diesel Engine Power Performance
Already done filters, injectors, tuning and still want more power - there is one more thing you could do.
Fuel Delivery
Fuel Leaks at Rear of Car
Fix at first sign of wetness under car - BEFORE total failure
Fuel Delivery
Emergency Plug for a Fuel Hose
You will be amazed how well this works!
Fuel Delivery
Tuning Rough Running C.I.S. Gas Fuel Injection
Here are some things you should look out for!
Fuel Delivery
Diesel Engine Timing Device
This important device is not immune to problems as the older diesel engines age!
Fuel Delivery
Improving Mileage and Performance on Your Older CIS Injected Benz Gas Engine
Most owners forget about the fuel injectors - Cap, rotor, wires and plugs may not be enough
Fuel Delivery
Hard Starting and Rough Running Gas Engine with C.I.S. Bosch Fuel Injection
Sometimes it can be something quite simple - other times not...
Fuel Delivery
How to Thoroughly Clean Gas CIS Fuel Injectors
Some will need to be "back flushed"
Climate Control Problems
Climate Control
Intermittent Cabin Heat - Second Generation Climate Control
Applies to late 123 and 107 chassis and all 126 chassis 1981 to 1991
Climate Control
Intermittent or No Cabin Heat - First Generation Climate Control
No heat or heat all the time are common problems with 1977 to 1980 models with automatic controls
Climate Control
Heater Blower Motor Won't Run
A common problem on all models. Options for repairing it yourself and saving big $$$.
Climate Control
Location and Replacement of Cabin Air Fitlers
These really get neglected and they are easy DIY
Climate Control
W123 Blower Heater Motor Won't Run
This applies to the 1977 to 1985 240D 300D 300CD 300TD 280E and 280CE.
Vacuum Problems
Vacuum
Determining Correct 1980 to 1985 Diesel Vacuum System Hose and Line Routing
When troubleshooting your vacuum system you must know where the hoses and lines go
Vacuum
123 Chassis Vacuum Door Lock Failure
A very common problem that requires precise troubleshooting
Vacuum
Vacuum Line Under Dash Not Plugged into Anything!
Common concern on 1980 to 1985 Mercedes Diesel 240D, 300D, 300CD, 300TD
Vacuum
Fixing W116 and Early 123 Door Locks
#1 Failure Point are the rubber diaphragms in the door lock actuators
Vacuum
How to Test a W123 Vacuum Door Lock Actuator
Easy to test when out of car. See Kent's manual to learn how to test without removing door panel.
Vacuum
Keeping Mice Out of Your Car
Double check for damage and use a product to scare them away
Vacuum
Constantly Failing Diesel Vacuum Pumps
Look for the cause in the drive mechanism
Vacuum
What is Causing Diesel OM616 and OM617 Vacuum Pump Failures?
Pump mechanisms breaking apart and piston bolt failures
Driveline and rear end Problems
Driveline and rear end
Diagnosing and Repairing Common 114 115 107 116 123 and 126 Rear End Problems
The Differentials are very rugged. It is the associated parts that usually fail due to age and high mileage
Driveline and rear end
Drive Line Flex Disk Deterioration and Catastrophic Failure
Start with inspection and replace at first signs of wear to prevent expensive damage to transmission
Driveline and rear end
1970's to 2000 Rear End and Rear Suspension Component Failure
Knowing your rear suspension design and theory will help troubleshoot a problem
Driveline and rear end
Installing Shift Rod Bushings - What Does Not Work
Nothing like having the right tool
Driveline and rear end
Worn Out Rear Axles
Best way to test them is out of the car on the bench
Driveline and rear end
Rear End Clunking Noises
Sign of worn part when driving over rough ground
Driveline and rear end
Can or Should I Replace My Rear Axle Boots?
If the axle joints are still good new boots are sometimes a good solution
SVO / Biodiesel Problems
SVO / Biodiesel
Installing a Mercedessource Diesel to Vegetable Oil Fuel Conversion
We offer an easy to install kit or you can build one from our components
SVO / Biodiesel
Running your Diesel Engine on Straight Vegetable Oil
The pros, cons, effort, and expense of running your Mercedes Diesel on waste vegetable oil
SVO / Biodiesel
Converting an Older Mercedes Diesel to Run on Vegetable Oil (SVO) Using the Mercedessource STC Kit?
Questions and answers to help you decide if this is right for your diesel
SVO / Biodiesel
How to Run Waste Cooking Oil in Your Diesel With Only One Fuel Tank?
Mercedes diesel engines are the only ones well suited for one tank operations
SVO / Biodiesel
Diesel to WVO / SVO Conversion Fuel Starvation
List of possible causes and remedies for hard starting and loss of power
SVO / Biodiesel
Sorting Out the Claims When Considering a Diesel to Vegetable Oil Conversion
Here are some tips to considering when putting together your own conversion
Lights Problems
Lights
Instrument Cluster Light Bulb Requirements
Knowing what bulbs you need and how to get to them is the key!
Lights
123 Chassis Center Console Panel Light Bulb Replacement
Getting to those little bulbs can be challenging.
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Lights
Really Dim Pre 1985 Headlights
If your car has the old style sealed beam headlights there is a great solution!
Lights
Dim 123 Instrument Lights
Here are some tips to help you brighten those instrument cluster lights
Lights
What to Do with Rusty or Faded Tail Light and Fog Light Reflectors
Tail lights we are talking all models from 1960s to Mid 1990's - Fog lights only on those with removable lenses.
Lights
What If It Is NOT My Dash Light Bulbs
If your dash is not lighting up at night it could be a number of problems
Lights
Preventing Rust from Forming Inside Your Headlights
Sometimes the fix can be real simple and real cheap.