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HELP IDENTIFY NOISE W211 E320 CDI (2005)

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Old Jun 20, 2018 | 11:17 PM
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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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Old Jun 28, 2018 | 06:26 PM
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2005 e320 cdi
Man thats metal grinding, i wonder if you figured it out?
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Old Jun 28, 2018 | 07:25 PM
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2005 W211 E320 CDI
Yes - it was a failing harmonic balancer
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Old Jun 28, 2018 | 07:28 PM
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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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Old Jun 30, 2018 | 04:05 PM
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Glad you figured it out
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Old Jul 3, 2018 | 03:54 PM
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2005 W211 CDI
What tune are you using?
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same part #, different part, ugh

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