View Single Post
Old 02-02-2013, 04:04 PM   #3
1st Gear Newbie
Join Date: Jan 2013
Location: Mississauga
Posts: 34
Well, I took it to an indy down the street(not BMW specific, but seem to know his stuff). He took it for a "spirited" drive(as per my request) and immediately thought it was a rear shock mount.

We got it on the lift, and to our surprise, everything was on point.

The shocks/mounts were fine and the springs are basically brand new (replaced in August 2012).

He poked around, checked for play in the diff(there's a slow leak, checked levels, everything's fine), violently shook the rear wheels... nothing. He popped the trunk, started pressing on **** trying to get the sound to replicate... nothing. He removed the tools from the trunk mounted toolbox and then we went for a drive.

The noise magically disappeared! He thinks it was the tools in the box, I seriously doubt it as the noise was too loud to be that.

Anyways, I'm pretty relieved although very confused. The shop tech only charged me a round of coffees for the visit - pretty cool guy.

Would the noise just stop if the subframe mounts were cracked/torn? I'd think it would be a constant noise.

I've booked an appointment with the subframe specialists(RMP Motorsports) to have my diff oil replaced/flushed. They'll be inspecting the subframe at that point. I'm not quite due for a flush, but I figure $80 for the diff oil change and an inspection is well worth it. They typically charge $50 for the inspection alone.

I'll post updates on Friday after the appointment.

But do you think the noise would disappear, even temporarily, if the subframe was cracked??
TF3N is offline   Reply With Quote