Incorrect Idle Speed Due to Stuck Idle Air Compensator on Mercedes-Benz 560SEL

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.

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Average mileage: (–)
2 model years affected: 1990, 1991
2 people reported this problem
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