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      05-20-2016, 07:17 PM   #1
larryv
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Right side upper A arm bolts were loose!

Started hearing a clunking noise when braking hard. I pulled my 2011 X5 with 52k into the garage and with some help from a friend backing up and pulling forward and could hear the noise coming from the top of the strut mount. After double checking all bolts that could be loose i found that the rt side upper A arm bolts were loose. I tightened the 16mm bolts and everything is nice and quiet again. Question, why would they be loose? The left side A arm bolts were tight. I have never had any work done on the upper suspension. Hopefully this may help anyone that might have had a clunking noise in the front end.
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      05-20-2016, 07:25 PM   #2
m5james
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I replaced my sway bar and links due to clunking and replaced the a-arm bolts because they weren't factory parts as they were either 14mm or 16mm sizes and didn't even have a lock washer. I'm pretty sure the previous owner cut corners lowering the car since it's had lowering links in the rear since the day I got it.
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      05-20-2016, 07:34 PM   #3
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Glad to hear you got it fixed. The noise i had was driving me crazy!
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      05-20-2016, 07:39 PM   #4
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Double check yours, they're a common wear item. I could grab either end of the link and wiggle them easily.
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      05-20-2016, 07:59 PM   #5
larryv
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Will do. Thanks
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      06-05-2016, 12:39 PM   #6
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sorry can you please tell me which bolts you tightened exactly. i have a loud squeaking noise that i get on slow sharp turns. turning the steering wheels in either direction will cause the sound and its driving me crazy i dont know what it could be. it could be anything for all i know (tie rod, lower ball joint, upper ball joint, etc.) looking to check the easy stuff first before digging deeper. thanks in advance.
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      06-05-2016, 04:18 PM   #7
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Here you go, the silver inner bolts were loose. I believe they are 16mm.
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      06-05-2016, 07:59 PM   #8
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Thanks very much! Is there a sepcific torque spec for these bolts or just tighten them nice and strong by hand?
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      06-06-2016, 07:12 PM   #9
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Someone installed the wrong bolts of mine at the top of the A, so I replaced them with stock ones while replacing my swaybar links since they were clicking over bumps.
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'10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2"
'98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's
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