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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > clunking sound over bumps



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      09-29-2013, 10:08 PM   #1
tomtom11
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clunking sound over bumps

hello everybody I have an 08 335xi coupe with Bilstein sport shocks and H&R lowering springs with about 50,000 miles. recently I noticed that when I go over a bump I hear an clunk sound coming from the front right side of the car. I dont know how else to describe it. does anyone have any idea what this could be? other than the clunking sound the car appears to be driving fine. thanks
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      09-30-2013, 04:47 AM   #2
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Could be several things but first thing I would check is if either end of your sway bar end link has come lose.
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      09-30-2013, 11:25 AM   #3
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Quote:
Originally Posted by ashmostro View Post
Could be several things but first thing I would check is if either end of your sway bar end link has come lose.
x2

check your top shock mount too, (where it connects to the body of the car)
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      09-30-2013, 11:42 AM   #4
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Quote:
Originally Posted by ashmostro View Post
Could be several things but first thing I would check is if either end of your sway bar end link has come lose.
I had the same issue. Once i got under the car it was obvious the drivers side endlink was a bit loose.
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      09-30-2013, 12:35 PM   #5
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Quote:
Originally Posted by KwlAznKid View Post
x2

check your top shock mount too, (where it connects to the body of the car)
Agreed. And the central nut that secures the shock to that top mount. All of these can cause the clunking that you described.
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      09-30-2013, 03:55 PM   #6
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I had the exact same setup as you and experienced the exact same problem. I also got the same responses you see above. After I replaced my endlinks, it turned out to be a blown front shock. Shortly after, the front left one went as well. Check the endlinks but it could very well be the shock itself.
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      09-30-2013, 10:30 PM   #7
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thank you guys, do you think it will be a problem asking my dealer do this since I have aftermarket suspension? I'm not trying to get this covered under warranty or anything I just didnt know if they would give me a hard time about it because of the aftermarket suspension.
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      09-30-2013, 10:34 PM   #8
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this might sound like a dumb question but is it safe to drive like this in the mean time until i get a chance to go to the dealer?
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      10-01-2013, 04:19 AM   #9
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Depends on the nature and severity of the problem. I don't want to say no if it really is something major. Can't really diagnose it from afar.

If you must drive it, take it very easy. And I don't see the harm in letting the dealer check it out, although I'd trust a good Indy more than any dealer...
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      10-01-2013, 08:05 AM   #10
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I had this clunk a couple of times. The nut that secures the strut to the body had come loose. Mine was loose to the point where I could move the nut with my finger. It will take you 5 minutes to fix if this is the issue.

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      10-01-2013, 06:05 PM   #11
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thank you guys for the replies. I will look into all of these possibilities
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