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
W123, Electrical
On Demand Video
$14.99
Manually Operated Sunroof Removal and Service - On Demand Video Manual
Applies directly to all W123 wagons and some 123 sedans and indirectly to other early 111, 108, 114, 115 and 116 models
Engine
Testing and Adjusting Turbo Charger Waste Gate Assembly
A faulty 617 turbo diesel waste gate can really affect engine performance
Electrical
Frequent Glow Plug Failure
If you are constantly having to replace glow plugs do not immediately blame the plugs! Ream the carbon!
Transmission
Dealing with an Over Filled Automatic Transmission
A major 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
Measuring Automatic Transmission Fluid Level
Minor frustration for most of us who service our own transmissions
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
Door Latch / Catch Failure
Failure is almost always caused by corrosion due to high moisture environment and lack of lubrication
Suspension
Trailing Arm Failure: WARNING!
On most models 1973 to 1991 trailing arms can collapse leading to dangerous consequences