1990 Mercedes-Benz 560SEC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 560SEC
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1990 Mercedes-Benz 560SEC ProblemsValve Stem Seals Wear and Cause Catalytic Converter Failure
Valve stem seals may wear and cause the engine to burn oil. this can contaminate the catalytic converter and cause it to fail.
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.
1990 Mercedes-Benz 560SEC Questions1987 560 SEC, unable to adjust both front seats via switches on the door fuse ok (1 answer)
I checked fuses they are not blown, what should I look for next? Any suggestions? Since both front seats can not be adjusted I am wondering if a wiring issue or module may be out. Where can I go in the car to check?
Is it possible to drop in a modern AMG engine into a 560sec (or any model from 2000 motors kompressor
or any new engineer from 2004 kompressor to 560sec