Noise in rear...
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 23
Likes: 2
From: antelope valley CA
2013 S63
Noise in rear...
So I just noticed when I drive my S63 more then 20 miles when slowing down and going around a corner I hear a growling noise, seems to be coming from the rear, as soon as I shift into 2/3 it goes away, any body ever have this happen?
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,617
Likes: 1,214
From: Phoenix
222 S-65
OP too many possibilities to take the WAG.
Noisy tires happen as they wear.
Brakes on or close to metal can do this.
A rock that gets involved with brake pads can do this.
A wheel bearing can do this.
Wheel bolts that are loose can do this.
Get to checking.
Noisy tires happen as they wear.
Brakes on or close to metal can do this.
A rock that gets involved with brake pads can do this.
A wheel bearing can do this.
Wheel bolts that are loose can do this.
Get to checking.
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 23
Likes: 2
From: antelope valley CA
2013 S63
Ok, its not brakes, just replaced, and noise was there before, not tires, its like a pump cavating but in the rear, and not all the time, I'm thinking that it possibly might be the rear accumulator, just curios if this is a tell tale sign.
Member
Joined: Apr 2017
Posts: 134
Likes: 28
2014 ML350
I think I may have a similar issue on my 65. But I hear it when the engine comes back to idle after a rev or coming to a stop. Like you described it's almost like a pump starving for fluid. But it only lasts for a second. My ABC is working fine. I don't hear the noise when I raise and lower the car, only when the engine is coming back to idle. Let me know if you figure anything out.
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,617
Likes: 1,214
From: Phoenix
222 S-65
I think I may have a similar issue on my 65. But I hear it when the engine comes back to idle after a rev or coming to a stop. Like you described it's almost like a pump starving for fluid. But it only lasts for a second. My ABC is working fine. I don't hear the noise when I raise and lower the car, only when the engine is coming back to idle. Let me know if you figure anything out.
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 23
Likes: 2
From: antelope valley CA
2013 S63
This may be a failing pressure dampener that threads into the ABC pump. 20 minute repair. Wash the area it threads into thoroughly before cracking it loose. It holds no pressure with the engine not running. Makes for all manner of creepy growling noises all over the car as it gets worse.
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MBWorld Fanatic!
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222 S-65
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