BC racing low speed clunk

SGM330 · 02-24-2014, 06:13 PM

Hey guys, I recently installed my coilovers but im having a small issue.

When i go over bumps at low speeds (0-20mph), I get a clunking, I checked the bolt in the spindle and the end link bolts, but they're tight, anybody with BC racing coils experience this before? The coils are brand new!

Any help is greatly appreciated!

e92_enthusiast_1 · 02-24-2014, 06:15 PM

How big are the bumps? You mean speedbumps? or just any little bump? Im just trying to get more details so others can help.

SGM330 · 02-24-2014, 06:19 PM

Quote:

Originally Posted by e92_enthusiast_1

How big are the bumps? You mean speedbumps? or just any little bump? Im just trying to get more details so others can help.

Sorry, great question! Little bumps, in the road and things like that, say I was driving on gravel it'll be clunking the whole way

e92_enthusiast_1 · 02-24-2014, 06:23 PM

Just one more follow up as it could be useful. Does the sound seem to come from all the wheeels or is it one in particular? Just curious if its discernible that it's coming from a certain spot.

Quote:

Originally Posted by SGM330

Sorry, great question! Little bumps, in the road and things like that, say I was driving on gravel it'll be clunking the whole way

SGM330 · 02-24-2014, 06:27 PM

Quote:

Originally Posted by e92_enthusiast_1

Just one more follow up as it could be useful. Does the sound seem to come from all the wheeels or is it one in particular? Just curious if its discernible that it's coming from a certain spot.

I believe they're both front shocks, I dont hear anything from the rear

e92_enthusiast_1 · 02-24-2014, 06:29 PM

Ok i dont have an answer but that's a lot of good info. Hopefully someone else who's had this can help you out. GL!

joro2077 · 03-12-2014, 03:59 PM

bump

JDM NA2 · 03-12-2014, 08:09 PM

Is your pre-load properly set?

dtea604 · 03-13-2014, 01:27 AM

Its just your coils compressing its happens from time to time

pits200 · 03-13-2014, 06:40 AM

Clunks after suspension installs always make me think endlinks.

SGM330 · 03-13-2014, 09:14 PM

Yes preload is set, its sort of gone away, I feel like it could be the shitty end links that come with the kit, they're not complete garbage but they are low quality!

_shim · 03-14-2014, 09:13 AM

Endlinks or loose top nut.

RallyRcrr · 03-14-2014, 09:54 AM

Binding can sometimes occur when the springs aren't seated on the perch fully.

lmoretti · 03-31-2014, 10:24 AM

This is happening to me as well, except I installed HR sport springs on stock struts yesterday... Did yours end up going away?

SGM330 · 03-31-2014, 09:45 PM

Quote:

Originally Posted by lmoretti

This is happening to me as well, except I installed HR sport springs on stock struts yesterday... Did yours end up going away?

Sort of living with it, how many miles on your struts? Could be blown and the springs made it even worse

lmoretti · 04-01-2014, 07:42 AM

37k miles and it was non sport suspension it was fine the day before. I'm thinking it is the sway bar end link as that's what I've been reading everywhere for the clunking noise over bumps

a4gspeedline · 04-01-2014, 07:59 PM

Your not the only one, Ive had a low speed light clunk for a while now. Have done possibly everything except replace parts. Time for some Kw comforts!

JStang · 04-01-2014, 08:04 PM

I had the same issue you are describing. For me, the driver side top nut had loosened over time. It was loose to the point where I could turn it with my fingers.

If you don't know what nut I'm referring to, it's the nut that is visible from the engine bay. You will have to remove the strut brace to get to it.

hongsc · 04-02-2014, 12:15 AM

Similar problem. When I first had my Koni FSDs and Eibach Pro-Kit installed it handled well. I would tap the parking divider/island in my garage. Now my car sits above it with no issues. I also get the clank/clunk noise over speed bumps going slow. Car feels a bit bouncy over bumps/dips. Guessing something is loose. Had it installed at LTMW. Wonder if they can check it out.

02-24-2014, 06:13 PM	#1
SGM330 Private First Class 20 Rep 198 Posts Drives: 06 330i 6spd Join Date: Aug 2013 Location: Toronto, Canada iTrader: (2)	BC racing low speed clunk Hey guys, I recently installed my coilovers but im having a small issue. When i go over bumps at low speeds (0-20mph), I get a clunking, I checked the bolt in the spindle and the end link bolts, but they're tight, anybody with BC racing coils experience this before? The coils are brand new! Any help is greatly appreciated!
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02-24-2014, 06:15 PM	#2
e92_enthusiast_1 Lieutenant Colonel 35 Rep 1,652 Posts Drives: '10 AW/CR e92 6mt 335i Join Date: Mar 2012 Location: Chandler, AZ iTrader: (1) Garage List 2010 BMW 335i [0.00]	How big are the bumps? You mean speedbumps? or just any little bump? Im just trying to get more details so others can help. __________________ COBB AP Stg 2+ FMIC Aggressive \| VRSF 3" Catless DP \| COBB FMIC \| BMS DCI \| CP-e Metal Charge Pipe \| 370+ whp/435+ lb.ft torque
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02-24-2014, 06:29 PM	#6
e92_enthusiast_1 Lieutenant Colonel 35 Rep 1,652 Posts Drives: '10 AW/CR e92 6mt 335i Join Date: Mar 2012 Location: Chandler, AZ iTrader: (1) Garage List 2010 BMW 335i [0.00]	Ok i dont have an answer but that's a lot of good info. Hopefully someone else who's had this can help you out. GL! __________________ COBB AP Stg 2+ FMIC Aggressive \| VRSF 3" Catless DP \| COBB FMIC \| BMS DCI \| CP-e Metal Charge Pipe \| 370+ whp/435+ lb.ft torque
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03-12-2014, 03:59 PM	#7
joro2077 ..... 25 Rep 152 Posts Drives: 335i E93 Join Date: Jul 2011 Location: South Jersey iTrader: (3)	bump
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03-12-2014, 08:09 PM	#8
JDM NA2 Private 0 Rep 81 Posts Drives: 09 335i e90 M-Sport Join Date: Oct 2012 Location: CA iTrader: (2)	Is your pre-load properly set?
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03-13-2014, 01:27 AM	#9
dtea604 Lieutenant 28 Rep 544 Posts Drives: 06 E90 325i Join Date: Jan 2012 Location: Vancouver iTrader: (0)	Its just your coils compressing its happens from time to time __________________ --------------------------- VMR VB3 // Mtec v4 AE //Nokya 7000k // M-tec LED plate lights // OEM blacklines // 20% window tint // Cyba air scoops // K&N + charcoal filter delete // BMS Powerbox // front splitters // Hamann front lip// M-tech trunk lip // Magnaflow custom // ER SS brakelines // KW V1's // RS tecknik spacers // H&R spacers
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03-13-2014, 06:40 AM	#10
pits200 Colonel 547 Rep 2,590 Posts Drives: 09 335i X-Drive Black Sapphire Join Date: Mar 2010 Location: Pittsburgh iTrader: (1)	Clunks after suspension installs always make me think endlinks.
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03-13-2014, 09:14 PM	#11
SGM330 Private First Class 20 Rep 198 Posts Drives: 06 330i 6spd Join Date: Aug 2013 Location: Toronto, Canada iTrader: (2)	Yes preload is set, its sort of gone away, I feel like it could be the shitty end links that come with the kit, they're not complete garbage but they are low quality!
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03-14-2014, 09:13 AM	#12
_shim Major General 147 Rep 6,380 Posts Drives: an e90 Join Date: Sep 2010 Location: 718 iTrader: (5)	Endlinks or loose top nut. __________________ •◡ •
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03-14-2014, 09:54 AM	#13
RallyRcrr Lieutenant 35 Rep 480 Posts Drives: 2007 BMW 335xi Join Date: Apr 2009 Location: Tacoma, WA iTrader: (9)	Binding can sometimes occur when the springs aren't seated on the perch fully.
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03-31-2014, 10:24 AM	#14
lmoretti First Lieutenant 27 Rep 372 Posts Drives: 2015 F80 YMB Join Date: Sep 2012 Location: Orlando, FL iTrader: (2)	This is happening to me as well, except I installed HR sport springs on stock struts yesterday... Did yours end up going away?
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04-01-2014, 07:42 AM	#16
lmoretti First Lieutenant 27 Rep 372 Posts Drives: 2015 F80 YMB Join Date: Sep 2012 Location: Orlando, FL iTrader: (2)	37k miles and it was non sport suspension it was fine the day before. I'm thinking it is the sway bar end link as that's what I've been reading everywhere for the clunking noise over bumps __________________ 2007 E92 335i - SOLD 2008 E92 335i - SOLD 2008 G37S - SOLD 2005 G35S - SOLD 1988 RX7 TURBO II - SOLD but never forgotten
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04-01-2014, 07:59 PM	#17
a4gspeedline New Member 3 Rep 13 Posts Drives: 2007 alpine white 335i Join Date: Mar 2013 Location: Chicago,IL iTrader: (1)	Your not the only one, Ive had a low speed light clunk for a while now. Have done possibly everything except replace parts. Time for some Kw comforts!
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04-01-2014, 08:04 PM	#18
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	I had the same issue you are describing. For me, the driver side top nut had loosened over time. It was loose to the point where I could turn it with my fingers. If you don't know what nut I'm referring to, it's the nut that is visible from the engine bay. You will have to remove the strut brace to get to it.
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04-02-2014, 12:15 AM	#19
hongsc Captain 153 Rep 982 Posts Drives: 2011 BMW 328i Join Date: Jul 2013 Location: Amazon Prime iTrader: (1)	Similar problem. When I first had my Koni FSDs and Eibach Pro-Kit installed it handled well. I would tap the parking divider/island in my garage. Now my car sits above it with no issues. I also get the clank/clunk noise over speed bumps going slow. Car feels a bit bouncy over bumps/dips. Guessing something is loose. Had it installed at LTMW. Wonder if they can check it out. __________________ 2011 BMW 328i Space Grey\|18" Avant Garde m359\|Michelin Pilot Sport A/S2\|Eibach Pro-Kit Springs\|Koni FSD\|M3 U+L Control Arms\|Lux Angel Eyes\|Stoptech\|Hawk 5.0\|aFe Race Pipes\|BMW PE
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