1990 Mercedes-Benz 300CE Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 300CE
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1990 Mercedes-Benz 300CE ProblemsBlend Doors in HVAC May Stop Working Due to Bad Vacuum Actuators
One or more blend door vacuum actuators may fail resulting in the incorrect output temperature from the HVAC system. Failed actuators will require replacement to restore proper HVAC operation.
Leaks may develop from the differential seals and/or cover on older or high mileage vehicles. Our technicians recommend a complete reseal of the differential unit when these leaks are addressed.
The lower control arm bushings can wear and crack, leading to irregular and premature tire wear. Worn Ball joints can also cause similar tire wear problems. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.
1990 Mercedes-Benz 300CE QuestionsTroubleshooting bad exhaust valve (1 answer)
Wont pass smog.
Compression check compressions are 75lbs, 135 lbs, 190lbs, 175lbs, 160lbs and 185 lbs
vehicle has a hard or no shift from 1st to 2nd when cold but will shift normal once warmed up