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Needing helg identifying "clonking" sound from rear axle. E91
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| 08-10-2015, 04:31 AM | #1 |
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Needing helg identifying "clonking" sound from rear axle. E91
Hello,
This is my first post on this forum, if this question already has been asked before (and answered) please help me finding it. I have an E91 from -06, lately i recognised a "clonking" sound from the right back wheel. It appears when braking and accelerating quickly. I removed the wheel and identifying two bushings looking old and worn out. Do you guys think this is the problem or is it something else? Please see attached photos. Many thanks for your advice and help. Best Regards, Anton |
| 08-10-2015, 08:08 AM | #2 |
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In addition to your subframe bushings being shot, there is a strong likelihood your differential bushings are in the same condition. Worn differential bushings can produce the clunking sound you are experiencing. It would be wise to have the four subframe bushings replaced in addition to your three differential bushings.
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| 08-10-2015, 10:53 AM | #3 |
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Many thanks Tom.
I had a look on RealOEM, and from what I can see there are four subframe bushings (No 3 and No 2). Which are the differential bushings? is it No 14 and 11? http://www.realoem.com/bmw/enUS/show...diagId=33_1351 Thanks for your help. |
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| 08-12-2015, 11:33 PM | #4 |
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These subframe bushings are beaten to death, they need to be replaced. You may also look into cleaning and protecting the subframe itself, it looks like it starts to rust.
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| 08-13-2015, 12:34 AM | #5 | |
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2012 Jet Black 328i Coupe / ESS Tuning Gen. 2 Supercharger / Evolution Racewerks Oil Cooler / BMS Oil Catch Can / BMW Performance Exhaust with Dinan Y Pipe / Eibach Pro Kit Springs / Koni FSD Shocks / MFactory LSD & Differential Bushings / Performance Rear Trailing Arms / BMW Performance Strut Brace / Stop Tech Slotted Rotors / Hawk HPS 5.0 / SS Brake Lines / Brass Guide Pins / M3 Front Control Arms, 28 MM FSB, Engine Cowl, and DCT Paddle Shifters / Michelin PSS / APEX ARC-8
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| 08-13-2015, 10:27 AM | #6 | |
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2008 E90 328i: 6MT - 17x9 ARC 8 square w/ 245 PSS - PE - M3 Front Control Arms - Bilstein B8 + H&R Sport
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| 08-13-2015, 11:22 AM | #8 |
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Initial thought was a destroyed upper shock mount in the rear (I had mine fail). However if it's only when accelerating and decelerating and not over bumps, then it shouldn't be the case.
I think you're on the right track with subframe bushings + possible diff bushings |
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| 08-11-2016, 05:10 AM | #9 |
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Late update: I manufactured a tool with a pipe with a threaded rod and changed the subframe bushings. I didnt change the diff bushings.
Result was a quiet ride! |
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| 08-11-2016, 11:33 AM | #10 | |
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