2005 Mercedes Benz E200



August, 29, 2009 AT 9:46 AM

Engine Mechanical problem
2005 Mercedes Benz E200 4 cyl Two Wheel Drive Automatic 51000 miles

My mercedes engine misfire while driving and the engine sign at the dashboard turn on and the engine shake while driving and while idle. I think it misfire when I accelerated the car. After I stop the car for about 1 hour, the engine sound ok(no misfiring and not shaking) when I started the car. After driving for a while, it misfire again. Would appreciate your expert opinion.


1 Answer



August, 29, 2009 AT 3:53 PM

Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include: Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires

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