"Thwacking" Noise from Suspension - Normal?
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2007 CLS550
"Thwacking" Noise from Suspension - Normal?
I just got my 2007 CLS 550 with 23,000 miles last night. I love the car. I also have a 2008 E350 with the AMG sport package (no air suspension) with 29,000 miles. Driving the CLS, I am noticing a "thumping" (edited for more accurate description than "thwacking") noise coming from the suspension when I hit a decent-size pothole, bump, or rut. It's not terribly loud, but it's certainly not a noise made by my steel-sprung E. The car drives just fine (more isolated and maybe a little less sharp than the E, even in sport mode 2), and I don't really feel much of anything when I hit the decent-size pothole, bump, or rut (less than I feel in the E), but I am not accustomed to the "thumping" noise. Is this normal? Any help would be appreciated.
Thanks in advance.
Thanks in advance.
Last edited by ChapelHillMBFan; Mar 16, 2011 at 03:27 PM.
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From: San Diego
CLS 55 AMG
CLS suspension problems
Did you ever get an answer about your CLS Suspension bump. I have had serious problems on my CLS 55 O6, Had the subframe snap and the rear axel actually broke free from it and landed on the ground. I have had it in the shop, subframe replaced, suspension and air bags f(twice). now it's starting to Bump again. I know what is coming. just wodering if you got anything on this.
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2007 CLS550
Thanks for the reply. But, wow, that is bad news with which to start off my Friday morning. I haven't heard anything from anyone else, but I am going to hope for the best. The car drives just fine. The only issue is the occasional "thumping" sound, and I may just not be accustomed to it since this is my first air-suspended car. I drove my E today, and it's not as though it doesn't make any noise when hitting a decent-sized pothole, bump, or rut, but in the E, the noise kind of resonates throughout the whole car, whereas the "thumping" noise I am hearing in the CLS is much more islolated.
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Ok not sure if I am having the same problem but I get thumping and vibration..Feels kind of like when u have warped rotors but it is no were near as bad. It is also similar to having a bent rim(but my rims are new)...I actually can feel it a lot more now that i have taken off my winter rims(stock 17's) and put on my summer rims(20's). Now I have hit a quite a few potholes in my day (i have replaced three rims on my car..all in the front)..i wonder if something has happened to suspension..I will take it in soon, i'll keep u guys updated.
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From: Hollywood, FL
2007 CLS550 Designo; 2009 Mini Cooper; 2011 BMW 335d
Ok not sure if I am having the same problem but I get thumping and vibration..Feels kind of like when u have warped rotors but it is no were near as bad. It is also similar to having a bent rim(but my rims are new)...I actually can feel it a lot more now that i have taken off my winter rims(stock 17's) and put on my summer rims(20's). Now I have hit a quite a few potholes in my day (i have replaced three rims on my car..all in the front)..i wonder if something has happened to suspension..I will take it in soon, i'll keep u guys updated.
Let us know what you find when you take the car in.
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2007 CLS550
Update: My car had a busted rear driver's-side strut. The independent MB shop I first took the car to could not diagnose the problem, but Mercedes Benz of Cary fixed it today. I loved the car before and thought it drove fine except for the occasional thumping noise on impact, but, man, what a difference! The car is so smooth, solid, stable, and quiet now. I fell in love all over again on the drive home from the dealership today. Very glad it finally got fixed.
Last edited by ChapelHillMBFan; Apr 22, 2011 at 11:34 PM.
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cls500
I HAVE A 2006 CLS500. I GET A RATTLING PINGING SOUND FROM UNDERNEATH WHILE I'M DRIVING.. SOUNDS LIKE CHAINS RATTLING.. ALSO, WHILE BACKING AND TURNING THE WHEEL I GET A SQUEEKING NOISE IN FRONT.. ANY IDEA WHAT CAUSES THESE ISSUES?????
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