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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 10-20-2009, 05:03 PM   #1
blazebro
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Join Date: Aug 2009
Location: New Brunswick, NJ
Posts: 4
My Ride: 2000 328ci
Rear end clunk woes..

I took my 2000 328CI into BMW to check the subframe for damage, since I am one of those inflicted with the dreaded e46 rear end clunk/thud when putting load on the differential. (Going from first to second gear, engaging the clutch in reverse, etc) Of course, this is all covered under the class action lawsuit against BMW so I figured why not. Upon inspection, BMW tells me that the subframe is cracked and in turn is causing a lot of play in the rear end, which could be the source of the clunking noise. I thought this was great. I also told them to check the differential mount bushing while they were at it since that is also a likely culprit for the noise. They agree to this as well.

Fast forward to 2.5 weeks later: BMW finally calls to tell me that the subframe is fixed, but it is "very likely" that the rear end clunk is still there. They also tell me that the differential mount bushing is OK. I ask where the noise is coming from, and BMW says that "this noise is normal from putting load on the differential". Needless to say I'm pretty pissed off, the noise does not seem normal to me at all. When I go pick up the car they are going to hear a load of **** from me. If they keep insisting the noise is normal then they will have to show me another E46 with the same issues. It almost seems like they didn't check the differential mount bushing at all.

My questions to you all are: Should I sell the car if the noise is still there? Is this actually normal? I've been chasing the cause of this noise ever since I bought the car and it's really annoying. If not, what the hell is the cause? I don't want to give them a load of **** tomorrow if the noise is in fact normal, but I've seen a lot of users with the same issue so that is doubtful in my eyes.

Thanks in advance
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Old 10-20-2009, 05:05 PM   #2
blazebro
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Join Date: Aug 2009
Location: New Brunswick, NJ
Posts: 4
My Ride: 2000 328ci
Ugh. This is the wrong forum section, I am sorry. Please close the thread
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