Z4MR broken rear coil springs?

[Z8cookie]

I just found a piece of my rear NS coil spring on the floor in the garage. Has anybody else had a broken rear coil spring on a Z4M? & Should this be covered under the warranty?

Any thoughts?

Cookie

Edited by Z8cookie on Tuesday 14th April 20:39

[KENZ]

Should be.. Very common on the E46 M3.. My M3 was replaced at 8k miles..bought at 6k..Not heard of them going on the Z4M. Do you live on the coast go thru many speed bumps?

[dan101smith]

Can't speak for the Z4M, but we've got two broken rear springs on our 3.0 Z4 that are due to be replaced under BMW extended warranty on Thursday.

[Z8cookie]

Just called into the dealer on the way home & it's booked in on Monday to have it (them) done under warranty. I thought it was odd that it waited until it was parked in the garage before falling off.

I don't live near the cost but with all the salt on the roads this winter I may as well. I very rarely go over speed bumps, in fact I use the same roads every day I have with my last 9 cars & I have never had a broken coil before, that I have known of, I only found out it was broken because if dropped of in the garage, if it had been on the road or parked somewhere I may have never found out.

Worrying?

Cookie

Edited by Z8cookie on Tuesday 14th April 20:53

[KENZ]

It's just the bottom of the spring that breaks off. If the paint gets chipped it's very quick to corrode. When mine went on my M3 it didnt feel different. In fact it only came to my attention when I lowered the passenger window and heard some squeaking noise. Sounded like a wheel bearing.

It's probably due to sitting water at the bottom of the spring..

[Z8cookie]

Here is the offending item.

[ian in lancs]

Common problem - warranty job. I had both mine changed on the 2004 2.5 Z4 I had.

Get both rears changed. Failure mode seems to be stones chip the paint, corrosion sets in and crack emanates from the pin prick corrosion and coil snaps. Usually the bottom coil on the RHS.

From the picture you've posted the same failure mode is evident and at the same location too. Covering with a sleeve, stone chip deflector, better paint or a steel less likely to rust would solve the problem.

http://www.z4-forum.com/forum/viewtopic.php?f=3&am...