C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

c240 rattling/knocking noise in drive

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Old Oct 23, 2012 | 11:04 AM
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2002 C240
c240 rattling/knocking noise in drive

I have 2002 C240 that has recently had the engine/transmission mounts, sway bar linkage and bushings, control arm bushing (front) and MAF unit replaced.

After the first repairs (engine/transmission mount and MAF) I started to hear an intermittent rattle that I could only hear from inside the car while it was in drive. If i listen closely to the engine I can hear the noise from under the hood, and a little better from under the car. The noise is coming from the front left side of the engine. When I put pressure on the top of the engine, the noise stops.

I will try to upload a recording of the sound. I appreciate any help!!
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Old Oct 23, 2012 | 11:31 AM
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pcy
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'14 ML350, '13 C220 CDI, '07 C280, '98 ML320
Recheck the engine mounts and trans mount bolts. Sounds like one of those bolts is not tightened.
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