Car Problem Reports

Mercedes-Benz 420SEL Stuck Idle Air Compensator May Cause Too High/Too Low RPM

 
Mercedes-Benz 420SEL Problem
5 Reports
Me Too
Edit

Model Years Affected: 1990, 1991

Average Mileage: 128,283 mi (58,000 mi - 198,566 mi)

Verified

It is not uncommon for the idle air compensator to get stuck in one position, resulting in the engine idle speed (rpm) being too high or too low. Replacement of the failed compensator may be necessary to correct this concern.

Ask a Question