Engine noise

Apr 18, 2019 | 09:35 AM

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

2005 E55 AMG

Engine noise

Engine making a weird noise a partial throttle and low rpm but when supercharger is engaged it’s gone

Apr 18, 2019 | 09:23 PM

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

Quote:

Originally Posted by Simbamoe

Engine making a weird noise a partial throttle and low rpm but when supercharger is engaged it’s gone https://youtu.be/GL7mW_-efMM

I’m currently hunting this same noise on my 04, I found that the bearing in my supercharger pulley was bad so I’m 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, I’ll let you know if I find anything.

Apr 18, 2019 | 10:37 PM

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

2005 E55 AMG

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.

Apr 24, 2019 | 01:01 AM

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

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.

Apr 24, 2019 | 11:10 AM

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

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. I’m going to get to the bottom of this LOL

Apr 25, 2019 | 10:28 AM

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

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

Apr 25, 2019 | 03:23 PM

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

Quote:

Originally Posted by Simbamoe

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 it’s the suspension to be honest, but wouldn’t hurt to check. My car has 187k miles I’ve been hearing it for roughly 500 miles. I’m almost positive my sound is belt driven or maybe transmission. Mine started about 3 months ago (I don’t put many miles on my car).

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Verdad Gallardo

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Verdad Gallardo

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Verdad Gallardo

Mercedes EQS Gets A Major Update: Everything You Need to Know

Verdad Gallardo

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Verdad Gallardo

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Verdad Gallardo

10 Most Reliable Mercedes-Benz Models You Can Buy Used

Verdad Gallardo

Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Verdad Gallardo

8 Mercedes Models With Poor Reliability Records

Verdad Gallardo

Magnificent New Mercedes-Maybach S-Class Revealed: 12 Things to Know

Verdad Gallardo

May 15, 2019 | 02:42 PM

Agent-A01

Senior Member

Joined: May 2013

Posts: 336

Likes: 27

05 W211 E500, 03 C215 CL55 AMG

Quote:

Originally Posted by Simbamoe

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.

May 15, 2019 | 06:21 PM

#10

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

Quote:

Originally Posted by Simbamoe

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; May 15, 2019 at 07:31 PM.

May 15, 2019 | 11:20 PM

#11

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

2005 E55 AMG

Wouldn’t the car have blown or over heated by now if it was the trans pump??

May 15, 2019 | 11:57 PM

#12

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

Quote:

Originally Posted by Simbamoe

Wouldn’t 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 we’re lucky it might just be a clogged trans filter or low on fluid if it’s 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. I’m starting to think it’s been quite a while since my trans had a fluid/filter change, so I’m going to start there. It’s cheap anyway.

May 16, 2019 | 12:47 AM

#13

Simbamoe

Thread Starter

Newbie

Joined: Apr 2019

Posts: 7

Likes: 0

2005 E55 AMG

Oh ok gotchu yeah I don’t know when it was done for this car I’m have to check

Jul 6, 2019 | 10:44 PM

#14

N_Rob

Member

Joined: Nov 2017

Posts: 198

Likes: 20

2008 BMW M5, 2004 E55 AMG (RIP)

Just coming back to update this thread in case anyone has the same noise in the future. I did a full transmission service and my noise went away (filter, fluid, pan gasket, and 13 pin connector). I bought the 722.6 service kit on FCP Euro and added on the 13 pin connector just as preventative maintenance. Before doing anything, I checked the transmission fluid level with the 722.6 dipstick (got mine on amazon:

https://www.amazon.com/gp/product/B075SVZB4B/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

) and I was significantly low on fluid. I believe this was the cause of the noise because my filter didn't look especially clogged but it's hard to say. Plenty of DIY's about this service, took me about an hour working on my back. Hope this helps and remember that the car must be running in order to get an accurate measurement with the dipstick.