As the title says, one of the first things i did when i got my car last summer was to replace the completely collapsed motor mounts with new ones. I used Lemförder ones as they're supposed to be MB's supplier or at least be on par with what the dealer sells. I was happy for a few weeks, thought it was still a bit rough but didn't loose sleep over it as i had many other issues to fix with the car.
I feel like the car really doesn't behave like it should with lots of noise, vibration and harshness. Here are the symptoms:
-The first compression stroke when the engine starts shakes the car really hard, same thing when i shut the engine down.
-Too much idle vibration, feels like grandpa's tractor again.
-Some kind of droning sound in the cabin coming from the front of the car, almost like a sound coming from the air box, seems worse at around 2000rpm, i can almost feel every power pulse and ear some kind of of resonance through the body of the car.
-I can feel the above through the steering wheel and i can also feel some kind of like knocks through it driving over a road that's a bit rough (that might be other things but i can't find play in any balljoint or bushing and there's no suspension noise).
-Vibration sounds louder when there's a dip in the road.
-Seems very slightly better when the weather gets warmer or after driving the car.
What i did and checked:
-Clearance between engine/trans and car body is ok. Can't find metal to metal contact.
-Motor mounts still look like new and bolts torqued correctly.
-Recently replaced the transmission mount and it did nothing.
It doesn't make the car undriveable but it should be way better than that. Prior to that i used to own a 1995 diesel W124 with the same engine and it was dead smooth after replacing the motor mounts, you could barely feel the engine idling or even starting or shutting down. My other W202s were smoother too. This is really doing my head in right now... Any idea what to check next? Has quality of supposedly good parts gone south too? Are motor mounts made of concrete?
I feel like the car really doesn't behave like it should with lots of noise, vibration and harshness. Here are the symptoms:
-The first compression stroke when the engine starts shakes the car really hard, same thing when i shut the engine down.
-Too much idle vibration, feels like grandpa's tractor again.
-Some kind of droning sound in the cabin coming from the front of the car, almost like a sound coming from the air box, seems worse at around 2000rpm, i can almost feel every power pulse and ear some kind of of resonance through the body of the car.
-I can feel the above through the steering wheel and i can also feel some kind of like knocks through it driving over a road that's a bit rough (that might be other things but i can't find play in any balljoint or bushing and there's no suspension noise).
-Vibration sounds louder when there's a dip in the road.
-Seems very slightly better when the weather gets warmer or after driving the car.
What i did and checked:
-Clearance between engine/trans and car body is ok. Can't find metal to metal contact.
-Motor mounts still look like new and bolts torqued correctly.
-Recently replaced the transmission mount and it did nothing.
It doesn't make the car undriveable but it should be way better than that. Prior to that i used to own a 1995 diesel W124 with the same engine and it was dead smooth after replacing the motor mounts, you could barely feel the engine idling or even starting or shutting down. My other W202s were smoother too. This is really doing my head in right now... Any idea what to check next? Has quality of supposedly good parts gone south too? Are motor mounts made of concrete?
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