Clunk/Rattle when coasting low speeds

coneill · 08-19-2019, 05:54 PM

Coasting like coming up to a stoplight or stop sign I hear/feel like a slight dull clunking or thud coming from the front. I don't hear it under acceleration or braking only when coasting. Do my lower control arms look bad? Im able to move them pretty freely by hand and when I do they are definitely hitting something which Im thinking might be the source.

Video attached.

RedScytheM3 · 09-14-2019, 07:17 PM

Quote:

Originally Posted by coneill

Coasting like coming up to a stoplight or stop sign I hear/feel like a slight dull clunking or thud coming from the front. I don't hear it under acceleration or braking only when coasting. Do my lower control arms look bad? Im able to move them pretty freely by hand and when I do they are definitely hitting something which Im thinking might be the source.

Video attached.

I get some banging sounds over bumps in the road also. Between 15-20 mph it is very noticeable. Strangely, I've heard a new sound that I recorded the other day that I'll share here maybe you've heard the same. You can hear the tapping around 7 sec. I'm going under the car tomorrow and I'll also see if I get the same play in the suspension components you show.

simpleM3 · 10-05-2019, 12:07 PM

That appears to be more play than what is normal. I'd replace those

AWDBooSTIn90 · 10-07-2019, 12:09 PM

That front lower control arm is SHOT!

I recommend getting a TRW kit of M3 front control arms (upper & lower). It will be a total of 4 control arms. 2 per side.

Then NO more clunk and MUCH better handling/steering.

Good luck!

AWDBooSTIn90 · 10-07-2019, 12:11 PM

In the first part of the video. The lower control arm you're twisting should move 1/2" each way. Deff not enough to actually hit the subframe. The rubber bushing or the ball joint is bad inside.

BRNDNSLVRA · 10-08-2019, 08:01 AM

Yeah those control arms are done bro. FCP euro has a kit

https://www.fcpeuro.com/products/bmw...e9xm34piecekit

M3SA1993 · 11-05-2019, 02:01 PM

Any update?

coneill · 11-16-2019, 02:34 PM

AWDBooSTIn90 954MM simpleM3 Sry for the late reply and thanks for the input. I think Im gonna drop some money on a refresh kit and just get all of the rubber and stuff replaced in the front since the car is coming up on 70K its probably not a bad idea to get all that done. Plus the car has done a few track days so probably overdue for that kind of maintenance.

WalkerM3 · 11-16-2019, 05:55 PM

I replaced my end links. Rattled/thud at low speed over small bumps. All good now

08-19-2019, 05:54 PM	#1
coneill Enlisted Member 9 Rep 48 Posts Drives: 2013 M3 Join Date: Feb 2018 Location: Royersford, PA iTrader: (0)	Clunk/Rattle when coasting low speeds Coasting like coming up to a stoplight or stop sign I hear/feel like a slight dull clunking or thud coming from the front. I don't hear it under acceleration or braking only when coasting. Do my lower control arms look bad? Im able to move them pretty freely by hand and when I do they are definitely hitting something which Im thinking might be the source. Video attached.
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10-05-2019, 12:07 PM	#3
simpleM3 Major 165 Rep 1,401 Posts Drives: 06' E46 M3 ZCP Join Date: Nov 2013 Location: Fairfax, VA iTrader: (13) Garage List 19’ BMW M5C [0.00] 2007 E61 530XI [0.00] 2006 E46 M3 [0.00]	That appears to be more play than what is normal. I'd replace those __________________ 19’ F90 M5C \| Signature VS-104 \| M-Performance \| IND \| H&R 06’ E46 M3 ZCP \| Karbonius \| Ohlins \| Vorshlag \| Turner \| Kassel \| IND \| Status Gruppe \| Macht Schnell 03' E39 M5 \| 100% Stock
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10-07-2019, 12:09 PM	#4
AWDBooSTIn90 Nomore 149 Rep 793 Posts Drives: 335i Coupe 6MT N54 Join Date: Feb 2014 Location: Long Island iTrader: (1)	That front lower control arm is SHOT! I recommend getting a TRW kit of M3 front control arms (upper & lower). It will be a total of 4 control arms. 2 per side. Then NO more clunk and MUCH better handling/steering. Good luck!
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10-07-2019, 12:11 PM	#5
AWDBooSTIn90 Nomore 149 Rep 793 Posts Drives: 335i Coupe 6MT N54 Join Date: Feb 2014 Location: Long Island iTrader: (1)	In the first part of the video. The lower control arm you're twisting should move 1/2" each way. Deff not enough to actually hit the subframe. The rubber bushing or the ball joint is bad inside.
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10-08-2019, 08:01 AM	#6
BRNDNSLVRA 奈良シカマル 905 Rep 482 Posts Drives: 2011 Space Gray E90 M3 Join Date: Oct 2016 Location: Broward County, FL iTrader: (0)	Yeah those control arms are done bro. FCP euro has a kit https://www.fcpeuro.com/products/bmw...e9xm34piecekit __________________ http://954mm.com IG: @954MM/@954M3
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11-05-2019, 02:01 PM	#7
M3SA1993 New Member 0 Rep 5 Posts Drives: E92 M3 Join Date: Apr 2019 Location: Houston, Tx iTrader: (0)	Any update?
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11-16-2019, 02:34 PM	#8
coneill Enlisted Member 9 Rep 48 Posts Drives: 2013 M3 Join Date: Feb 2018 Location: Royersford, PA iTrader: (0)	AWDBooSTIn90 954MM simpleM3 Sry for the late reply and thanks for the input. I think Im gonna drop some money on a refresh kit and just get all of the rubber and stuff replaced in the front since the car is coming up on 70K its probably not a bad idea to get all that done. Plus the car has done a few track days so probably overdue for that kind of maintenance.
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11-16-2019, 05:55 PM	#9
WalkerM3 Private 5 Rep 55 Posts Drives: E90 M3 AW FR Join Date: Sep 2008 Location: Calgary,Alberta iTrader: (0) Garage List 2008 BMW M3 [8.25]	I replaced my end links. Rattled/thud at low speed over small bumps. All good now
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