I have a 2003 E320 which has started to run rough, sounds like a diesel, with moderate vibration. Just had the oil changed by MB dealer but no change in running condition. What should I check? The dealer changed the oil "only". I did not have a check engine warning.
car runs rough on 2003 Mercedes-Benz E320
by easyed in Alexandria, VA on October 31, 2009
2 answers 1 comment
ANSWER by patrick mannion on October 31, 2009
Did the dealer make any comment about the way the car ran? If the Check Engine Light is on a code is stored in the on board computer in your car. A scan tool is required that attaches to a 16 pin diagnostic socket under the dash of your car that reads problem captured by the on board computer. If a Check Engine Light is on I suspect an ignition problem or fuel injector problem but I more suspect your car has an exhaust leak from a gasket, cracked manifold or exhaust pipe/muffler.
COMMENT by easyed on October 31, 2009
have a 2003 E320 which has started to run rough, sounds like a diesel, with moderate vibration. Just had the oil changed by MB dealer but no change in running condition. What should I check? The dealer changed the oil "only". I did not have a check engine warning.
ANSWER by Visitor on December 06, 2010
Have the engine mounts checked. Bad mounts will make the car seems like it has a rough idle, but is actually the vibration on the engine.
tis is a wagon that has had most everything replaced and checked. No book came with the car has...
The car lost power all of a sudden, while driving down the freeway. The car starts easily but runs rough at idle. I can go 0 to 60mph in about 20sec. The check engine light is on. The engine runs s...
Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running);...
Had oil changed made noise prior to that. knocking/ tapping noise at idle as well as off idle Car also runs rough and vibrates while driving at all speeds . Someone had put aftermarket lights in ca...