C350 2010 Rough Shifting & RPM Fluctuate
10-20-2017, 10:05 AM
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C350 2010 Rough Shifting & RPM Fluctuate
When start up the car in the morning, the RPM is not stable until it warm up. When cruising at 80Km/h the RPM fluctuate between 1500 and 1700. if cruise control is set at 100Km/h it will bounce between 99 and 102 Km/h. When gas throttle is released it hold up the gear and then kicks and up shifts. I put it on Star and no error or fault are shown. I checked the throttle body (very clean), i checked for vacuum leaks (no leaks). What could it be?
