Loud whine that corresponds with rpm
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Joined: Feb 2020
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2002 E430 Base
Loud whine that corresponds with rpm
Hello, I couldn't find this posted elsewhere, so I figured I'd ask here. When driving, there is a very noticable whine coming from the engine bay, that rises in pitch with the rpm. On other threads it was stated Ps might be low, but at 80° engine temp (according to the dash) the meter was at the "full" indicator. I dont notice any changes to the Ps, everything is smooth. If anything, the only "problem" is shifting while in drive is a little rough, but nothing else is "wrong". After I did the most recent oil change, the whine went away for a short while, maybe half a day, and then came back. The car has 202xxx miles if that matters. Thanks for your help in advance!
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From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Hello, I couldn't find this posted elsewhere, so I figured I'd ask here. When driving, there is a very noticable whine coming from the engine bay, that rises in pitch with the rpm. On other threads it was stated Ps might be low, but at 80° engine temp (according to the dash) the meter was at the "full" indicator. I dont notice any changes to the Ps, everything is smooth. If anything, the only "problem" is shifting while in drive is a little rough, but nothing else is "wrong". After I did the most recent oil change, the whine went away for a short while, maybe half a day, and then came back. The car has 202xxx miles if that matters. Thanks for your help in advance!
Posting a sound clip would be helpful.
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A gaggle of MB's
Please do a forum search (or google) for W210 fan clutch - fan belt tensioner - fan belt idler roller - and also how to check water pump.
Something driven by your belt is causing the noise - and you do need to track it down - because once the fan belt "blows" you are going to be dead-in-the-water somewhere out on the highway - and that is NEVER a pleasant or inexpensive experience.
Something driven by your belt is causing the noise - and you do need to track it down - because once the fan belt "blows" you are going to be dead-in-the-water somewhere out on the highway - and that is NEVER a pleasant or inexpensive experience.
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2014 ML63
1999 E320 4 Matic 77k miles
I have the same issue I will upload video tomorrow
Please watch my YouTube video
https://youtube.com/shorts/ua4uz4gaj_g?feature=share
copy paste since won’t let me upload it here
Please watch my YouTube video
https://youtube.com/shorts/ua4uz4gaj_g?feature=share
copy paste since won’t let me upload it here
Last edited by One_fast_ML63; Oct 23, 2022 at 02:49 AM.
