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Discussion Starter #1
I have a 2000 S430 with 75000 miles. Has anyone ever experienced a loud buzzing noise when they start the car and park it in idle? I was thinking it's the timing belt. Any help with be appreciated! Thanks!
 

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W221 & Audio Moderator
2013 S550
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10,956 Posts
A failing harmonic balancer (pulley) can cause vibration when the rubber joining the two metal parts of the pulley starts to fail. This is the subject of a current recall. When it fails, it can take out your oil pan. Have it checked.
 
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