E-Class (W211) 2003-2009

broken motor mount symptoms

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Old 07-22-2011, 04:31 PM
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2015 E 250, 1999 BMW M Roadster, 1939 International Harvester, 2023 GLC
broken motor mount symptoms

I have 2005 CDI 125k miles. Just had every pices in the front end suspension replaced and I stil get a noise when travling slow over bumps. What are the symptoms of bad motor mounts ?

Thanks in advance
Old 07-29-2011, 12:00 AM
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I just had the transmission mounts replaced under warranty, the only symptom I told them was a slight vibration while idling. It's all I really noticed. After replacement I don't have it anymore.
Old 07-29-2011, 09:55 AM
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2006 E320CDI
Originally Posted by SEC1939
I have 2005 CDI 125k miles. Just had every pices in the front end suspension replaced and I stil get a noise when travling slow over bumps. What are the symptoms of bad motor mounts ?

Thanks in advance
vibration in the body. Open the hood, start engine and feel the vibration of the engine then feel the body and see if there is much difference. You can also feel vibration when turning. My O6 E320 CDI needed new ones at 80K. It makes a difference. Did both engine mounts and transmission mount.
Old 07-29-2011, 08:25 PM
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While in idle the vibration is significant. When moving and accelerating and at highway speeds I could not tell they failed.
Old 07-29-2011, 08:51 PM
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Vibration, as well feeling excessive "slop" when the engine is revved in neutral at a stop, depending on how bad they are.

Unless you absolutely can not manage to get all of them done at once, I suggest doing the engine & trans mounts all at one time.

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