Noisy Diff - pinion bearings !! UPDATE.

Greg 01 · Post by **Greg 01** » Tue Mar 19, 2019 3:35 pm

Needs must pbondar,
As I couldn't turn round in the boot I had to do this twice to check each side .

My wife thought I was a little nuts but by then I was determined

sure2drive · Post by **sure2drive** » Tue Mar 19, 2019 4:15 pm

Nothing wrong with a little OCD eh!

I'll keep at it

Deek · Post by **Deek** » Sat Mar 23, 2019 9:12 am

sure2drive wrote: ↑Tue Mar 19, 2019 4:15 pm Nothing wrong with a little OCD eh! I'll keep at it

It’s not OCD, it’s CDO……alphabetical order-as it should be.

Pbondar · Post by **Pbondar** » Sat Mar 23, 2019 9:33 am

Greg 01 wrote: ↑Tue Mar 19, 2019 3:35 pm Needs must pbondar,
As I couldn't turn round in the boot I had to do this twice to check each side .
My wife thought I was a little nuts but by then I was determined

highway1 · Post by **highway1** » Sat Mar 30, 2019 8:12 pm

I know Z4s' are prone to noisy diffs- my Z4 Coupe has had a bit of a whine , (particularly when I first get it out of the garage) since I got it over 3 years ago ( at 59000 miles) now on 74000 and its still there but not get any worse. I had a BMW indy change the diff and gearbox oils when I got it but, it didn't stop the noise so I just accept it as a "feature"!

Again, the DMF can be noisy when warm ( stops when pressing down clutch) but again got no worse over 15,000 miles and runs lovely so, again, seems to be an N52 thing , and researching it, even when people fork out for a new clutch/flywheel, it seems the noise makes its self known again, so I just live with it- and its not that bad- nobodys ever said to me- "bloody hell, whats that noise?" !!

sure2drive · Post by **sure2drive** » Tue Apr 02, 2019 10:21 am

Thanks Highway. I don't think it can be too bad really, my friends say they can't hear anything and it's just me! But as I am the one that drives it then it's what I hear that matters, it's a feint whine at a frequency that grates with me. If I move my head so that it rests against the seat it seems to dissappear, so it's obviously not that loud. Maybe it's something else entirely and I'll figure it out eventually.
I guess I will have to get used to it or turn the radi on. Other than that, it's a great car

Thanks for the post though, it's reassuring.

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