HELP IDENTIFY NOISE W211 E320 CDI (2005)

06-20-2018, 11:17 PM

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bsmith9802

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2005 W211 E320 CDI

HELP IDENTIFY NOISE W211 E320 CDI (2005)

All -

Please listen to this video - this is on my w211 E320 CDI (2005). I have changed the water pump, tensioner pulley, and idler pulley however the noise persist. I started the vehicle with the drive belt off and the noise persisted. Has anyone heard a similar noise on their E320 CDI? I am thinking crankshaft pulley possibly? Turbo fan maybe? Thank you for help.

YOU TUBE VIDEO LINK (PLEASE LISTEN):

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06-28-2018, 06:26 PM

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Altink

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2005 e320 cdi

Man thats metal grinding, i wonder if you figured it out?

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06-28-2018, 07:25 PM

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bsmith9802

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2005 W211 E320 CDI

Yes - it was a failing harmonic balancer

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06-28-2018, 07:28 PM

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bsmith9802

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2005 W211 E320 CDI

Not a common problem apparently - part is about $900 ... I had the engine tuned to increase performance wondering if I accelerated the demise of balancer

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