It could be that you installed in upside down  
			Take a close look at this picture and you can see that the seal does not look quite right. The lip is above the top surface of the roof. Since it is possible to install the front seal upside down and many of the sunroofs from 1965 to 1985 be careful that you get it right. The top of the seal, when installed in the groove, should be flush with the top of the car roof.
Problem & Solution
Common among these chassis:
    W110 W111 W112 Sedan  
  
    W111 W112 Coupe  
  
    W108  W109  
  
    W114  
  
    W115  
  
    R107  
  
    W116  
  
    W123  
  
    W126  
				
