what causes the air flow sensor to fail to function on 2003 Mercedes-Benz C240

after how many km are you suppossed to change the air flow sensor.

by in Garnet Valley, PA on March 15, 2013
1 answer
ANSWER by , March 15, 2013
try cleaning the sensor connections. 300, 000 kil. on my ride, and never had to replace it. of course your part could be just toast but try that first.