Knocking-sound (Right/Rear)

[Porker]

Hi all,

My CSL produces a knocking sound at the backside on the right. It occurs whenever I take a medium to hard lefthand turn, or drive through potholes with the right rear wheel.

It might be worth to note that my car has PSS10 fitted, maybe it's a faulty Bilstein-damper?

[Mark CSL]

Hi
The standard rear springs brake also have you checked the pads as this can do that noise if you have a big brake kit.

The bottom suspension bar did this on my csl and was replaced under warranty
Its the one from the bottom of the hub to the Diff mount and is a round alloy bar.

Hope this helps :beer:

[Porker]

Hi
The standard rear springs brake also have you checked the pads as this can do that noise if you have a big brake kit.

The bottom suspension bar did this on my csl and was replaced under warranty
Its the one from the bottom of the hub to the Diff mount and is a round alloy bar.

Hope this helps :beer:

Hi Mark, thanks for the input.

I have AP-racing, but I doubt the pads can produce such a heavy knock? Springs are part of the PSS10-kit, so I assume they should be less prone to breaking? I'll have it checked together with the suspension bar.

Thanks!

[shimmy]

Rear bottom bush, not easy to get out!

[cantfind1]

did you change your rear top suspension mount when you put the Billys on or did you use the standard BMW rear top mount.....

If its original will prob be that....

[Porker]

did you change your rear top suspension mount when you put the Billys on or did you use the standard BMW rear top mount.....

If its original will prob be that....

Spoke to my technician, those have indeed been changed, according to him it should indeed be the rear bottom bush.

I'll have it changed right away.

[Funkster]

Rear bottom bush, not easy to get out!

I find getting in the bush is the hard bit...... Never a problem getting out :wink:

[Porker]

Just to make sure they change the correct part, could anyone give a partn° of the suspect bush?

Thanks

[Mark CSL]

No 4 Part no 33326770817

Part 5 can also clunk Wishbone, lower

http://www.realoem.com/bmw/showparts.do?model=BL96&mospid=50641&btnr=33_1365&hg=33&fg=30

:thumbs:

[CraigMillwardCroft]

I find getting in the bush is the hard bit...... Never a problem getting out :wink:

More lube required :whistle:

[shane@mbtech]

Just to make sure they change the correct part, could anyone give a partn° of the suspect bush?

Thanks

I'm gonna throw this one out there...........

Would it not be best letting them tell you which bush has gone, rather than the bush that someone on an internet forum who has not seen the car says is gone?

[Porker]

I'm gonna throw this one out there...........

Would it not be best letting them tell you which bush has gone, rather than the bush that someone on an internet forum who has not seen the car says is gone?

Well obviously, but I'm assuming one can hardly inspect the condition of a bush when fitted? If indeed, upon inspection, it appears something else has gone bust, they will change that. I'm just helping to point out the suspects. :beer:

The first three are for the bolt that changes the rear camber, this bolt is bent.

33 32 1 095 102
33 32 1 092 310
33 32 6 760 668



33 32 6 775 551 (bush)

[shane@mbtech]

Well obviously, but I'm assuming one can hardly inspect the condition of a bush when fitted? If indeed, upon inspection, it appears something else has gone bust, they will change that. I'm just helping to point out the suspects. :beer:

The first three are for the bolt that changes the rear camber, this bolt is bent.

33 32 1 095 102
33 32 1 092 310
33 32 6 760 668



33 32 6 775 551 (bush)

Of course you can check bushes for play whilst they are fitted. You dont need to press them out to check. You check in situ

[Porker]

Well obviously, but I'm assuming one can hardly inspect the condition of a bush when fitted? If indeed, upon inspection, it appears something else has gone bust, they will change that. I'm just helping to point out the suspects. :beer:

The first three are for the bolt that changes the rear camber, this bolt is bent.

33 32 1 095 102
33 32 1 092 310
33 32 6 760 668



33 32 6 775 551 (bush)

Car is at BMW at the moment, above mentioned bush was indeed worn, and replaced together with a couple others. The knocking should be cured, I'll have the car back on Wednesday. :smt023

[Porker]

Now regardless off bushes needing replacement, isn't this an absurd amount of bodyroll?
This is on PSS10 at 8 clicks.