Car Problem Reports
Mercedes-Benz SLK230 Mass Air Flow Sensor Failure Causing Poor Fuel Economy and Check Engine Light on
Mercedes-Benz SLK230 Problem
Average Mileage: 78,320 mi (44,000 mi - 130,000 mi)
Actually was on way to get vehicle smogged and check engine light came on...therefore could not smog. Took car to shop. They ran test and found downsteam 02 sensor out of limits. replaced to the tune of approx. $616.00, $260.00 was labor, rest part. Still not sure if will pass smog. I have to drive 150 miles to reset computer info before it can be smogged.
These sites may be helpful...or maybe not...
Visitor, 1998 Mercedes-Benz SLK230
Check Engine Light and Fuel Trim and sensor circuit issues.
Visitor, 2003 Mercedes-Benz SLK230, 130,000 mi
check engine light on, wouldnt pass smog test, misfiring, replaced mass air flow sensor, part alone was 450.00
Visitor, 1999 Mercedes-Benz SLK230, 44,000 mi
Check engine light. dealer verified Mass Air Flow sensor failed
Visitor, 2000 Mercedes-Benz SLK230, 59,000 mi
Running rough, engine light came on.