Clunking sound when I hit a bump
HI
Whenever I hit a little pothole on road, i get some loud clunk on right side of car, not sure if its front or back or both. Could it be shocks or something else I should be looking for? My car just reached 100K miles, X5 4.8 2009. |
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FWIW I spent a lot of time diagnosing a similar clunk that I thought came from behind the driver. But eventually I looked under the hood and found the real culprit. Here are links to two threads with the gory details. https://xoutpost.com/bmw-sav-forums/...unk-trunk.html https://xoutpost.com/bmw-sav-forums/...build-diy.html Funf Dreisig |
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So I was told is the front lower control arm, is there any difference between OEM and other brand? Seems like OEM is double the price
Front Lower Control Arm - Left Refresh your suspension Brand: TRW - Corporate Logo ES#: 2593885 Mfg#: 31126771893 Qty: In Stock LIMITED QTY SALE $200.99 $151.69 ADD TO CART Free Shipping Free Shipping Front Lower Control Arm - Left Refresh your suspension Brand: Hamburg Tech - Corporate Logo ES#: 2815188 Mfg#: 31126771893 Qty: Direct Ship $168.10 ADD TO CART ES#49252 - 31126771893 - Front Lower Control Arm - Left - Refresh your suspension - Genuine BMW - BMW Front Lower Control Arm - Left Refresh your suspension Brand: Genuine BMW - Corporate Logo ES#: 49252 Mfg#: 31126771893 Qty: Ships in 2 Days 17% off MSRP $385.51 $319.12 ADD TO CART Free Shipping Free Shipping Front Lower Control Arm - Left Refresh your suspension Brand: Vaico - Corporate Logo ES#: 2884190 Mfg#: 31126771893 Qty: Ships on Jan 31, 2019 $71.52 ADD TO CART Free Shipping Free Shipping on orders $49 and up Front Lower Control Arm - Left Refresh your suspension Brand: Febi - Corporate Logo ES#: 2870235 Mfg#: 31126771893 Qty: Ships on Jan 31, 2019 $103.28 ADD TO CART Front Lower Control Arm - Left Refresh your suspension Brand: Lemforder - Corporate Logo ES#: 3219624 Mfg#: 31126771893 |
just a thought but last time i did my whole front end replacement with the cheapest parts for my e36 i started to rattle again within a year and a half. replaced it with oem its been 5 years since its still nice and stiff.
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Thanks for the heads up |
In most repairs the labor exceeds the cost of the parts. I’m usually saving quite a bit by doing my own labor. So I don’t chince on the parts. I look for a good price on OEM parts. Often I can match the OEM, that BMW uses for that part, at roughly half the cost of BMW’s part.
Funf Driesig |
Yeah my money would be on tension arms. I just put a set of Febi on, I expect them to last 40K miles. Be sure to replace the one-time-use fasteners. The torque spec is important to achieve proper bolt stretch. Found in TIS.
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I'm getting a similar sound on the X5M over small bumps. Replaced last year was the thrust-bushing assembly and lower control arms. I was thinking it could be the upper strut mount/guide support, but the X5M design is different where it seems not to have the rubber/foam like standard X5s.
Maybe the rubber/foam is built into the amount and is not serviceable? I ordered new swaybar link and will see if that eliminates the clunk. (Pics of X5 and X5M mount) |
Funf, I have a question. How hard is it to compress the strut shaft? I've had this little rattle and replaced the lower foam piece by compressing the strut enough to slip it in before the shaft expanded again. It took some effort to push down, but seemed like it should be much stiffer. My foam pieces are fine. Replaced end links and tension arm, thinking about trying lower control arm next. Just haven't had the time for a few months.
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