Questions and Answers
Mercedes Benz 190E Stalling At Stops
Q. Mr. Ciulla, Nice Meet you. I have a 1987 Mercedes Benz 190E with a 2.3 liter engine, automatic transmission and has 103,000 miles. It is fuel injected and has cruise control. This engine idles rough. Sometimes when it is in first gear and I brake fast it will stall. Also, the engine pings a little bit. Are these related and can a do-it yourself mechanic fix these problems?
Thanks for any help you can give me.
AdamA. About all you can do is give the throttle chamber and Idle Air Control Valve (IACV) a good cleaning. Check the distributor cap, rotor and ignition wires. Also check for vacuum leaks.
Other than that, there is a problem with the Lambda control system and your Mercedes Benz dealer will have to check the system with their Lambda Tester. There could also be a problem with the fuel distributor and/or injectors.
