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Engine noise

 
Old 04-18-2019, 09:35 AM
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2005 E55 AMG
Engine noise

Engine making a weird noise a partial throttle and low rpm but when supercharger is engaged itís gone
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Old 04-18-2019, 09:23 PM
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2004 E55 AMG
Originally Posted by Simbamoe View Post
Engine making a weird noise a partial throttle and low rpm but when supercharger is engaged itís gone https://youtu.be/GL7mW_-efMM
Iím currently hunting this same noise on my 04, I found that the bearing in my supercharger pulley was bad so Iím changing that out next week, next step is to remove both the belts and spin everything by hand. Please update this thread if you find what it is, Iíll let you know if I find anything.
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Old 04-18-2019, 10:37 PM
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I am changing out the supercharger belt on weekend hoping to fix the noise. i was always guessing the bearing for the supercharger could be the problem too. I asked a lot of e55 owners on ig and they all give my different cause it could. I'm always gonna check over what they told me it could be.
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Old 04-24-2019, 01:01 AM
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2005 E55 AMG
so i changed the supercharger belt last friday and the sound reduced but i can still hear from time to time. when i hand spun the supercharger pulley the bearing sounded bad so i suspect it is the bearing.
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Old 04-24-2019, 11:10 AM
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Interesting. I changed my supercharger pulley bearing just a few hours ago and my noise is still there, although roughly 70% quieter. Let me know how changing the bearing affects yours. Iím going to get to the bottom of this LOL
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Old 04-25-2019, 10:28 AM
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2005 E55 AMG
Damn if it is not the bearing. im going to check out the suspension. just wondering how long have u been hearing this noise and when did it start and how many miles on your e. i have 100055
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Old 04-25-2019, 03:23 PM
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2004 E55 AMG
Originally Posted by Simbamoe View Post
Damn if it is not the bearing. im going to check out the suspension. just wondering how long have u been hearing this noise and when did it start and how many miles on your e. i have 100055
I doubt itís the suspension to be honest, but wouldnít hurt to check. My car has 187k miles Iíve been hearing it for roughly 500 miles. Iím almost positive my sound is belt driven or maybe transmission. Mine started about 3 months ago (I donít put many miles on my car).
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Old 05-15-2019, 12:48 PM
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taking the e to a shop on saturday to get them to diagnose the noise have not been able to figure it out myself
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Old 05-15-2019, 02:42 PM
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Originally Posted by Simbamoe View Post
taking the e to a shop on saturday to get them to diagnose the noise have not been able to figure it out myself
Try putting the car in 3rd gear and driving up to 80.
Slowly coast down in speed and see if the noise gets worse.

To me it sounds more like it's coming from the transmission.
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Old 05-15-2019, 06:21 PM
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Originally Posted by Simbamoe View Post
taking the e to a shop on saturday to get them to diagnose the noise have not been able to figure it out myself
Definitely update this thread with what they tell you. I have a sinking suspicion it's transmission related like the guy above said, like tq converter whine or front trans pump. If it's front trans pump that's a big RIP as I understand it. New trans needed to fix that I think.

EDIT: Might also be worthwhile to either have the shop check the diff or do it yourself. I'm unfortunately away from my car for another 2 weeks or so, so I will be making no headway (not that I was getting anywhere before, I got really busy lol).

Last edited by N_Rob; 05-15-2019 at 07:31 PM.
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Old 05-15-2019, 11:20 PM
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Wouldnít the car have blown or over heated by now if it was the trans pump??
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Old 05-15-2019, 11:57 PM
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Originally Posted by Simbamoe View Post
Wouldnít the car have blown or over heated by now if it was the trans pump??
Not necessarily. The sound could be a failing pump, not a failed one. If weíre lucky it might just be a clogged trans filter or low on fluid if itís trans related at all. Out of curiosity, when was the last time you had a trans fluid and filter change? The previous owner of my car said it was done 20k miles before I bought the car but I looked through the service records he gave me the other day, it only noted a check on the fluid 20k miles before I bought it. Iím starting to think itís been quite a while since my trans had a fluid/filter change, so Iím going to start there. Itís cheap anyway.
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Old 05-16-2019, 12:47 AM
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Oh ok gotchu yeah I donít know when it was done for this car Iím have to check
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