Strange sound from the trunk? (E63)
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2007 E63
Strange sound from the trunk? (E63)
Greetings all,
Long-time anonymous lurker of this (and many other automotive forums). Finally found a reason to register last month when I picked up a 2007 E63.
Loving the car so far, but there's a strange noise that simply drives me crazy. After driving for a few minutes, I start hearing a "pop" or "bonk" noise from what seems to be inside the trunk. It's not so loud as to be audible over wind/engine noise, but when I stop at a light or pull into a drive-thru, there it is, popping every 15 to 30 seconds or so.
By the time I've arrived back at home and am idling in the garage, the noise is gone and I hear normal idle.
Nothing in the archives seem to point to a cause. Anyone ever experience something similar? Thanks in advance!
Zip
PS: Any other AMG owners in central California? I see more non-AMG-badged vehicles here in Bakersfield than actual AMG rides, unfortunately.
Long-time anonymous lurker of this (and many other automotive forums). Finally found a reason to register last month when I picked up a 2007 E63.
Loving the car so far, but there's a strange noise that simply drives me crazy. After driving for a few minutes, I start hearing a "pop" or "bonk" noise from what seems to be inside the trunk. It's not so loud as to be audible over wind/engine noise, but when I stop at a light or pull into a drive-thru, there it is, popping every 15 to 30 seconds or so.
By the time I've arrived back at home and am idling in the garage, the noise is gone and I hear normal idle.
Nothing in the archives seem to point to a cause. Anyone ever experience something similar? Thanks in advance!
Zip
PS: Any other AMG owners in central California? I see more non-AMG-badged vehicles here in Bakersfield than actual AMG rides, unfortunately.
Joined: Jul 2006
Posts: 6,760
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From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
Greetings all,
Long-time anonymous lurker of this (and many other automotive forums). Finally found a reason to register last month when I picked up a 2007 E63.
Loving the car so far, but there's a strange noise that simply drives me crazy. After driving for a few minutes, I start hearing a "pop" or "bonk" noise from what seems to be inside the trunk. It's not so loud as to be audible over wind/engine noise, but when I stop at a light or pull into a drive-thru, there it is, popping every 15 to 30 seconds or so.
By the time I've arrived back at home and am idling in the garage, the noise is gone and I hear normal idle.
Nothing in the archives seem to point to a cause. Anyone ever experience something similar? Thanks in advance!
Zip
PS: Any other AMG owners in central California? I see more non-AMG-badged vehicles here in Bakersfield than actual AMG rides, unfortunately.
Long-time anonymous lurker of this (and many other automotive forums). Finally found a reason to register last month when I picked up a 2007 E63.
Loving the car so far, but there's a strange noise that simply drives me crazy. After driving for a few minutes, I start hearing a "pop" or "bonk" noise from what seems to be inside the trunk. It's not so loud as to be audible over wind/engine noise, but when I stop at a light or pull into a drive-thru, there it is, popping every 15 to 30 seconds or so.
By the time I've arrived back at home and am idling in the garage, the noise is gone and I hear normal idle.
Nothing in the archives seem to point to a cause. Anyone ever experience something similar? Thanks in advance!
Zip
PS: Any other AMG owners in central California? I see more non-AMG-badged vehicles here in Bakersfield than actual AMG rides, unfortunately.
Thread Starter
Junior Member
Joined: May 2011
Posts: 19
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2007 E63
LOL, should have been more specific ;-) Trunk is completely empty, and the noise is most audible at a dead stop, with no movement at all.
I was more worried about that guy with the hook-hand they tell you about to keep you from pulling over on the side of the road with your girlfriend at night ;-)
I was more worried about that guy with the hook-hand they tell you about to keep you from pulling over on the side of the road with your girlfriend at night ;-)
Thread Starter
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2007 E63
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
I have the same issue on my 07 E63, it seems to come from the suspension. I think its the rear air springs. I have my car on a lift and check the suspension to ensure everything is tight, no loose ball joints, or leakages. It has to be the air springs, I've eliminated everything else, including anything is the trunk, spare tire, etc. I'm still puzzled.
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Thread Starter
Junior Member
Joined: May 2011
Posts: 19
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2007 E63
I have the same issue on my 07 E63, it seems to come from the suspension. I think its the rear air springs. I have my car on a lift and check the suspension to ensure everything is tight, no loose ball joints, or leakages. It has to be the air springs, I've eliminated everything else, including anything is the trunk, spare tire, etc. I'm still puzzled.
At the same time, I know I'm going to have a hell of a time getting the dealership to do anything to help. I had great experiences with Sangera here in Bakersfield when I had my CLK55. Since then, however, the service reps I've worked with really don't want to replace anything under warranty.
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Joined: Jan 2005
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From: SF Bay Area
Flint Gray E63
I had my 2007 E63 at the dealership a couple weeks ago for the same noise. My SA wrote "Customer states hears thump noise in trunk area at idle at stop."
My trunk was empty and I only heard the noise when the radio was off and the car was stopped at a red light or stop sign or if I pulled over to the curb and let the car idle.
The first tech could not verify the noise, so the Foreman drove my car and verified it. Foreman wrote "Normal operating condition. Purge noise."
I did not get a chance to talk to the Foreman so I don't know the exact details of how this "purge noise" occurs, but I was told that it is completely normal.
My trunk was empty and I only heard the noise when the radio was off and the car was stopped at a red light or stop sign or if I pulled over to the curb and let the car idle.
The first tech could not verify the noise, so the Foreman drove my car and verified it. Foreman wrote "Normal operating condition. Purge noise."
I did not get a chance to talk to the Foreman so I don't know the exact details of how this "purge noise" occurs, but I was told that it is completely normal.
MBWorld Fanatic!
Joined: Apr 2009
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
I honestly think the that noise is coming from the suspension, specifically the air springs. Think about it, what else in the rear would be making noise, drive shaft, rear axle, suspension. Those are the only things besides the wheels and brakes that are moving. 
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From: Puerto Rico
2005 E55 AMG
If it's when the car is still or nearly still then it's the air springs trying to level out the car. It should be a faint "knocking" like sound and if you pay attention, when you hear it you can sometimes tell that the car is moving up and down slowly.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 6,020
Likes: 532
From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
Thank you for confirming, what I already suspected
I knew that I wasn't imagining it.
