noise Idler pulley or valve noise please help!
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Newbie
Joined: Sep 2009
Posts: 11
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From: ARIZONA
03 e55
noise Idler pulley or valve noise please help!
Cant tell if my e55 fun is over or just a simple pulley Bearing failure. Have tried the ole bat trick to listen to try to zero in on the location of the noise The noise cycles inconsistantly , sounds like a noisy valve on front pass side, or idler pulley bearing has gone bad. Any suggestions would be great 03 e55 68000 miles no warranty owned only three mths still learning Thanks.
Former Vendor of MBWorld
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From: Houston
2003 W211 E55, 2003 W220 S600
put one end of a brass rod to the idler pulley and the other end to your ear and you will be able to tell if the noise is coming from the pulley.
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From: Houston, TX
2006 E55, 2012 Jeep SRT, 2008 G37s 6MT (The Mrs.), 2005 Explorer
^^^ Simple, easy, effective. I have a long flat tipped screwdriver I use to listen to internals. Never heard of someone using a bat, I wonder what your neighbor thought when he saw you holding a bad to your mercedes? haha the mental image is classic.
MBWorld Fanatic!
Joined: Mar 2006
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From: Louisiana
03 E500 and Corvette
Cant tell if my e55 fun is over or just a simple pulley Bearing failure. Have tried the ole bat trick to listen to try to zero in on the location of the noise The noise cycles inconsistantly , sounds like a noisy valve on front pass side, or idler pulley bearing has gone bad. Any suggestions would be great 03 e55 68000 miles no warranty owned only three mths still learning Thanks.
I bought a replacement pulley at autozone. I took the MB part to my shop machined off the retaining boss and pressed out the bearing. I found the bearing in the AZ replacement pulley identical to the MB part.
I paid about $20 for the pulley/bearing.
Check the w211 section for pics. Site won't let me upload them again.
Warning,, don't let the bearing seize it will fracture the pulley and throw parts this might/could damage the radiator.
The pulley is easily removed after the belt is off. If you need a procedure PM me and I will send what I have, vettdvr.
Last edited by vettdvr; Nov 23, 2009 at 03:58 PM.
Thread Starter
Newbie
Joined: Sep 2009
Posts: 11
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From: ARIZONA
03 e55
You guys are the best. Thanks for all the ideas ,the neighbors did take notice as I raised the hood holding my baseball bat.Thanks again sounds like the pulley my be the problem I hope !
