[E60525d]

Just to update this thread for the benefit of other.

I had exactly this noise,

I ended up using a syringe and needle to insert grease in the lower ball joint through the rubber.

Obviously this is not a permanent fix but at least now the car is quieter until I get the balljoint changed.

[mweisdorfer]

Lower ball joint, or one of your rear control/ toe arms.

[zort]

Originally Posted by Greyfox

Okay, for those with a squeak in the rear end.... is your emergency brake on?

I had a squeak when getting in and out of the car from the rear. Open the tailgate and close it, squeak. Drove me absolutely bonkers till one day I got out of the car without the emergency brake on.... no squeak. Sure enough, something had a bit of rust on both sides and when I put the e-brake on the movement would cause it to squeak.

WOW !!! simply wow this saved me from ripping up the suspension. Going to try this to solve it - Pulling the e brake a bit while driving.

http://www.m3post.com/forums/showthread.php?t=675908

-B

[eyehategod]

Resurrecting this dead thread for anyone who google searches this problem. I didn't try any of the above posts, but I was having a very audible squeaking in my passenger rear side for weeks now. I thought it was probably something going on with my suspension - bushings, lower ball joint like others mentioned, etc. For me it was a rear shock absorber bolt needing tigthening. It took like two seconds. Get into the trunk and pull back the wheel arch trim. There's a big circular rubber cap, pull it up. Underneath you'll find a bolt. I give it a few turns with the wrench and the squeaking stopped. We'll see how long it lasts, though.