Loud whine that corresponds with rpm
02-05-2020, 11:44 PM
#1
Newbie
Thread Starter
Join Date: Feb 2020
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
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!
02-06-2020, 04:12 PM
#2
MBWorld Fanatic!
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.
02-07-2020, 07:48 PM
#3
MBWorld Fanatic!
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.
The following users liked this post:
One_fast_ML63 (10-23-2022)
10-23-2022, 01:55 AM
#4
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; 10-23-2022 at 02:49 AM.
