[tango222]

Hi all

On my f31 335d I've started hearing squeaking at low speed or when parking or uneven roads. It's quite loud inside never heard it before

I have eibach springs fitted 5000 miles ago but it definitely wasnt making the noise then until very recently

Any ideas what it could be? Just put new ps4s on 2 weeks ago at rear.

Thanks

[danb1979]

Top mounts, ARB bushes, drop links, shocks, trailing arm bushes...

It could be all sorts unfortunately and might be a sod to reproduce on ramps

Can you get someone to bounce the back end of the car for you whilst you're led under it to see if you can hear where it might be coming from?

[bishbosh]

Back end of my f30 squeaks like hell. Couldn't see any leaking/perished bushings. Popped it on axle stands and tried compressing the springs with a jack. Of course it didn't make a sound!

[tango222]

I was hoping it's not one of those issues which needs chasing with loads of parts

Is it possible to rear ball joints have blown out ? The oil in the centre has been lost?

[mrbensam]

Rear dampers maybe?

[tango222]

Noise seems to be coming from somewhere high up so possibly dampers

The car has adaptive suspension are the dampers expensive for these ?

[Allworth]

It can be pretty much any part of suspension that has a rubber, especially arms. What mileage?
Worth checking ALL of the suspension for wear and play.

[Pond]

Originally Posted by tango222

The car has adaptive suspension are the dampers expensive for these ?

Yes, very!

[McBeemer]

I had similar squeaking noise (80k miles) & it was the rear lower arm ball joints - an indie replaced them, saying it was a common issue - no problems since (now have 94k miles)