Clunk from Rear Suspension

anerbe · 12-16-2019, 04:14 PM

Hello,

I've been getting a clunk from the rear right area when going over any bump that would compress the spring/shock. I had the local shops check the rear sway and suspension arms and all looks tight.

I replaced the all the right rear upper shock mount parts, and the clunk remains. When installing, I did find that the rear shock (EDC) didn't return to fully extended length, where I had to pull up on the shock rod from within the trunk after placing load back on the axle, and it did emit a noise from what appeared from the lower shock mount area when tapping the shock with a rubber mallet and moving/twisting the shock by hand.

Has anybody seen a lower shock mount gone bad (doesn't look cracked), or the shock itself to create noise during road impacts? There's no EDC error, nor was there any proof of leaks.

Thanks!

///mawana · 12-17-2019, 03:47 PM

Quote:

Originally Posted by anerbe

Hello,

I've been getting a clunk from the rear right area when going over any bump that would compress the spring/shock. I had the local shops check the rear sway and suspension arms and all looks tight.

I replaced the all the right rear upper shock mount parts, and the clunk remains. When installing, I did find that the rear shock (EDC) didn't return to fully extended length, where I had to pull up on the shock rod from within the trunk after placing load back on the axle, and it did emit a noise from what appeared from the lower shock mount area when tapping the shock with a rubber mallet and moving/twisting the shock by hand.

Has anybody seen a lower shock mount gone bad (doesn't look cracked), or the shock itself to create noise during road impacts? There's no EDC error, nor was there any proof of leaks.

Thanks!

It's your rear shock, just replaced one of mine on Sunday with same symptom!

randrews15 · 12-17-2019, 07:00 PM

Some of these shocks could be approaching 10 years or more depending on the year of the car, so they will fade during that time. I'm planning on replacing mine at the 10 years mark regardless of mileage. It definitely appears that your shock is failing you and needs to be replaced. Replace both sides as it will feel very weird if you don't. I do believe BMW recommends this in their repair manuals.

anerbe · 03-02-2020, 09:06 AM

Update: The rear shock lower bushing was separated from the shock. You could move it around back and forth, and rotate the metal within the bushing.

Replaced rear shocks with 20K mile OEM edc shocks, no more noise. Should tidy me over a few months till it's time to go Coils.

Thank you all!

Jerezblack.m3 · 05-20-2024, 01:10 PM

Quote:

Originally Posted by anerbe

Update: The rear shock lower bushing was separated from the shock. You could move it around back and forth, and rotate the metal within the bushing.

Replaced rear shocks with 20K mile OEM edc shocks, no more noise. Should tidy me over a few months till it's time to go Coils.

Thank you all!

happened on my kw v3 shocks! just replaced them and no more clunking sound
Name: thumbnail_image0 (1).jpg
Views: 267
Size: 114.8 KB

Name: thumbnail_image1.jpg
Views: 260
Size: 94.2 KB

spammysammich · 05-20-2024, 02:12 PM

Quote:

Originally Posted by Jerezblack.m3

happened on my kw v3 shocks! just replaced them and no more clunking sound
Attachment 3461789
Attachment 3461788

Got a part number for that or did you send them into KW for rebuild? Mine are getting worn.

Jerezblack.m3 · 05-21-2024, 08:37 AM

Quote:

Originally Posted by spammysammich

Got a part number for that or did you send them into KW for rebuild? Mine are getting worn.

Email Braden.Gentleman@kwautomotive.com
He’s the one who i talked to.
Part number: 65210769 Its $11 per bushing !

GORDON.M3 · 05-23-2024, 12:36 PM

Quote:

Originally Posted by Jerezblack.m3

happened on my kw v3 shocks! just replaced them and no more clunking sound
Attachment 3461789
Attachment 3461788

Where did you get the bushing?

Jerezblack.m3 · 05-24-2024, 03:24 PM

Quote:

Originally Posted by GORDON.M3

Where did you get the bushing?

Email Braden.Gentleman@kwautomotive.com ! took 3 weeks to get here from germany

12-16-2019, 04:14 PM	#1
anerbe Lieutenant Colonel 122 Rep 1,567 Posts Drives: Red E90M 6MT Join Date: Dec 2006 Location: BH, MI iTrader: (2)	Clunk from Rear Suspension - bad shock? Hello, I've been getting a clunk from the rear right area when going over any bump that would compress the spring/shock. I had the local shops check the rear sway and suspension arms and all looks tight. I replaced the all the right rear upper shock mount parts, and the clunk remains. When installing, I did find that the rear shock (EDC) didn't return to fully extended length, where I had to pull up on the shock rod from within the trunk after placing load back on the axle, and it did emit a noise from what appeared from the lower shock mount area when tapping the shock with a rubber mallet and moving/twisting the shock by hand. Has anybody seen a lower shock mount gone bad (doesn't look cracked), or the shock itself to create noise during road impacts? There's no EDC error, nor was there any proof of leaks. Thanks!
	Appreciate 0 Tweet Quote

12-17-2019, 07:00 PM	#3
randrews15 Lieutenant 292 Rep 559 Posts Drives: 2012 E93 M3 Le Mans Blue Join Date: Nov 2012 Location: Parrish, FL iTrader: (1)	Some of these shocks could be approaching 10 years or more depending on the year of the car, so they will fade during that time. I'm planning on replacing mine at the 10 years mark regardless of mileage. It definitely appears that your shock is failing you and needs to be replaced. Replace both sides as it will feel very weird if you don't. I do believe BMW recommends this in their repair manuals.
	Appreciate 0 Quote

03-02-2020, 09:06 AM	#4
anerbe Lieutenant Colonel 122 Rep 1,567 Posts Drives: Red E90M 6MT Join Date: Dec 2006 Location: BH, MI iTrader: (2)	Update: The rear shock lower bushing was separated from the shock. You could move it around back and forth, and rotate the metal within the bushing. Replaced rear shocks with 20K mile OEM edc shocks, no more noise. Should tidy me over a few months till it's time to go Coils. Thank you all!
	Appreciate 0 Quote