Unstable low idle

Asked by GuruP11XN Jan 22, 2020 at 02:55 AM about the 1996 Mercedes-Benz C-Class Sedan

Question type: Maintenance & Repair

My 1996 w202 c180 engine rpm would not come
down after acceleration. Its stays between 1500

1 Answer


Most likely cause is a vacuum leak. Try spritzing a little bit of starting fluid around your engine's intake (PCV, EGR, throttle body, etc.), if it surges you found your leak.

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