Suspension Noise - Please Help!
Thread Starter
Newbie
Joined: Mar 2024
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2013 W166 ML350
Suspension Noise - Please Help!
Hello Everyone! New to the forums. I recently purchased a 2013 ML350 4Matic. Traditionally a BMW guy, my first Mercedes and love it.
That being said, I recently noticed a metallic like noise when driving over bumps. Car drives completely normal until I hit a bump then it makes the noise (see attached video for the noise). I tried jacking the car up assuming it was sway bar end links. Everything seems to be tight as it should be. Almost sounds like a loose bolt rattling around to me.
Does anyone have any advice on where to look or has experienced something similar? At a loss of where to look next before bringing it to a trust German auto mechanic or MB dealership. Thank you in advance!
That being said, I recently noticed a metallic like noise when driving over bumps. Car drives completely normal until I hit a bump then it makes the noise (see attached video for the noise). I tried jacking the car up assuming it was sway bar end links. Everything seems to be tight as it should be. Almost sounds like a loose bolt rattling around to me.
Does anyone have any advice on where to look or has experienced something similar? At a loss of where to look next before bringing it to a trust German auto mechanic or MB dealership. Thank you in advance!
Member
Joined: Aug 2021
Posts: 136
Likes: 64
ML400 - 128i - Atlas VR6
is this sound coming from the front or the rear? How many miles on it? Maybe it is a bushing that needs replacing.
Where the chrome is on the trunk lid, are you able to push down over and over again to try and isolate where the sound is coming from? If you have a tow hitch maybe you stand on it and slightly jump or lay down and pull it down to you.
I have read that the rear springs can break (scary), have you inspected them for anything significant?
It may also be something loose with a heat shield.
Where the chrome is on the trunk lid, are you able to push down over and over again to try and isolate where the sound is coming from? If you have a tow hitch maybe you stand on it and slightly jump or lay down and pull it down to you.
I have read that the rear springs can break (scary), have you inspected them for anything significant?
It may also be something loose with a heat shield.
Thread Starter
Newbie
Joined: Mar 2024
Posts: 2
Likes: 0
2013 W166 ML350
is this sound coming from the front or the rear? How many miles on it? Maybe it is a bushing that needs replacing.
Where the chrome is on the trunk lid, are you able to push down over and over again to try and isolate where the sound is coming from? If you have a tow hitch maybe you stand on it and slightly jump or lay down and pull it down to you.
I have read that the rear springs can break (scary), have you inspected them for anything significant?
It may also be something loose with a heat shield.
Where the chrome is on the trunk lid, are you able to push down over and over again to try and isolate where the sound is coming from? If you have a tow hitch maybe you stand on it and slightly jump or lay down and pull it down to you.
I have read that the rear springs can break (scary), have you inspected them for anything significant?
It may also be something loose with a heat shield.
I don't think the brake pad should be able to move freely within the caliper and think this may be causing the noise. Will likely be ordering a new set of pads from FCPEuro and hoping that is the fix!
Member
Joined: Jan 2013
Posts: 190
Likes: 76
2013 ML550 US spec. Air+Offroad pkg
Couple other things to check. If you have off-road package, the big metal plate that covers the bottom of engine has a series of bolts holding it on, make sure they are all tight and not cross threaded (mine came new with 2 that were cross threaded and not tight, and they rattled). Also take your fist and pound on the top of the tire where noise comes from to see if you can reproduce it. Could be suspension on that tire, like the linkage joints. Again, mine had a bad one …top control arm joint…that was bad from factory that caused a rattle.
Out Of Control!!
Joined: Apr 2019
Posts: 12,007
Likes: 6,833
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
light rattling
I've listened to your test drive.
The brake pads are a pretty good guess. Before
swapping parts, simply apply light brake pedal to hear if rattle disappears...
Pads can be glued to caliper on inner pad and lubricated on the outer side.
Missing brake hardware springs help relief that.
The brake pads are a pretty good guess. Before
swapping parts, simply apply light brake pedal to hear if rattle disappears...
Pads can be glued to caliper on inner pad and lubricated on the outer side.
Missing brake hardware springs help relief that.
Last edited by CaliBenzDriver; Mar 8, 2024 at 09:32 PM.
