greenday-rulz21 6 Report post Posted August 21, 2009 This is really weird. Started happening yesterday afternoon out of the blue. Theres a tinny rattle (I think thats the best way to describe it) coming from the rear of the car. But it only happens when the rev's are around 1600-1800 max. I don't think its speed related as it happens in all gears when the rev's rise or drop to that number. And if you depress the clutch when its rattling it stops. That leads me to believe its something to do with the drivetrain. But I also thought wheel bearings or maybe even a stone in a caliper or in the muffler. idk. I haven't been doing burnouts or donuts or anything that would lead to hurting the diff, so I can't really see how it could be that. Any help is appreciated. 1999 E36 323i EP97709 Quote Share this post Link to post Share on other sites
hybrid 1043 Report post Posted August 21, 2009 Take someone with you in the car whos pretty good with cars .. have then climb around your car when it happens. Its easy enough to find stuff like this with someone else. Or atleast the general location of it. Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted August 21, 2009 (edited) rusty baffle in the muffler or broken exhaust hangers etc . get it up high and have a look anfd poke around . also these manual gearboxes rattle when idling Edited August 21, 2009 by Brent HARTGE535i Quote Share this post Link to post Share on other sites
323e30 0 Report post Posted August 21, 2009 I had a similar noise a while back. Turned out to be a rear brake pad rattling because the clip had broken off. Sound went away when i put the brakes on. And was only there at certain revs or on bumpy roads. Quote Share this post Link to post Share on other sites
greenday-rulz21 6 Report post Posted August 21, 2009 Cheers guys, I'll check it out properly tomorrow. Pretty busy today. Yea, not the diff. Thank god. You can here it in neutral when just revving it I found out today. So I'm guessing its what Brent has said, rusty baffle in the muffler. Quote Share this post Link to post Share on other sites
greenday-rulz21 6 Report post Posted August 24, 2009 All sorted now thanks to Ray at HellBM. The mans a legend. Cheers Quote Share this post Link to post Share on other sites
bmw325i 0 Report post Posted September 2, 2009 All sorted now thanks to Ray at HellBM. The mans a legend. Cheers couldnt agree more. good bas**rd ol ray Quote Share this post Link to post Share on other sites
