W221 S500 Loud banging sound
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Joined: Nov 2023
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W221 S500 pre-facelift
W221 S500 Loud banging sound
Hi everyone!
This is my first post on this forum and I'm the owner of a S500 from 2007.
I've had the car for more than 2 years right now and it's been great so far.
Now I've gotten a new issue which I haven't been able to identify.
When I go 70 - 100% on the gas pedal then something bangs really loud at the drivers side.
Since it did not happen when the car was in neutral and when in reverse gear (with brakes) it seems to shake a bit it let me think it was the transmission mount.
Got it replaced but the issue still persists.
Anyone got a clue? tested my engine mounts as well but these don't shake a lot in my opinion.
Additional info:
Engine M273 5.5
Km 259.678
I uploaded a short where u can kinda hear it:
This is my first post on this forum and I'm the owner of a S500 from 2007.
I've had the car for more than 2 years right now and it's been great so far.
Now I've gotten a new issue which I haven't been able to identify.
When I go 70 - 100% on the gas pedal then something bangs really loud at the drivers side.
Since it did not happen when the car was in neutral and when in reverse gear (with brakes) it seems to shake a bit it let me think it was the transmission mount.
Got it replaced but the issue still persists.
Anyone got a clue? tested my engine mounts as well but these don't shake a lot in my opinion.
Additional info:
Engine M273 5.5
Km 259.678
I uploaded a short where u can kinda hear it:
MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,319
Likes: 1,675
S500
that kind of driving puts a lot of stress in the drive train and will eat fuel - if that's a normal driving style I get everything checked over for wear
its a very unusual noise - much sharper and louder then I'd expect -
gearbox and and engine mounts need checking
I don't think it is but the exhaust smashing into the body as things move might be possible
as would be the prop-shaft snagging on the body / exhaust and or centre bearing has given up under the abuse its getting
which leads to the next bit further back, with a need to investigate if the diff bushes are completely toast
its a very unusual noise - much sharper and louder then I'd expect -
gearbox and and engine mounts need checking
I don't think it is but the exhaust smashing into the body as things move might be possible
as would be the prop-shaft snagging on the body / exhaust and or centre bearing has given up under the abuse its getting
which leads to the next bit further back, with a need to investigate if the diff bushes are completely toast
Thread Starter
Newbie
Joined: Nov 2023
Posts: 2
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W221 S500 pre-facelift
I understand that, it was just to get the sound on the video.
Thanks for the idea's will order a driveshaft rubber and engine mounts (as i already did the transmission mounts) for now and hope that it solves the issue.
Thanks for the idea's will order a driveshaft rubber and engine mounts (as i already did the transmission mounts) for now and hope that it solves the issue.
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,617
Likes: 1,214
From: Phoenix
222 S-65
Shouldn’t be hard to find. Look for where whatever it is is banging into the car. Should be a shiny spot for it as Lou’s as that is.
Mounts or several broken exhaust hangers (or both) comes to mind.
Mounts or several broken exhaust hangers (or both) comes to mind.
