130i "Whine" from rear

[ManaghGB]

My 2005 130i has developed a whine from the rear which gets louder the quicker you go and gets really noticeable above 40mph.

I've checked the tyre pressures and all are normal and the tyres are nearly new Michelin PS4's. The noise stays the same even when cornering so doesn't change with load.

The car has a Quaife ATB LSD fitted which seems to be functioning correctly and doesn't knock at all.

Possibly just a rear wheel bearing on it's way out?

[Higgs boson]

It certainly sounds like the diff. It's a known issue on standard E81, E82, E87, E88 versions.
IIRC, it was the bearing that accepts the drive shaft.
With yours, however, ...?

[ManaghGB]

I don't know if it's just because I'm sat in the drivers seat but it does sound like its coming more from the back right rather than the rear in general.

The LSD was fitted in 2012 and the oil replaced as well so it's not on the original oil still.

Booked in with a specialist next week to have a closer look.

[selym]

Can you 'feel' it through the seat? It sounds like a wheel bearing but you never know.

[ManaghGB]

selym said:

Can you 'feel' it through the seat? It sounds like a wheel bearing but you never know.

Not that I've noticed but the cars on Birds B1 suspension and has eibach roll bars so it's pretty stiff and jiggly anyway.

Going to get the wheels off tonight and investigate a little further. Best way to check for a wheel bearing is to rotate the wheel and listen for a rumble and feel for a vibration?

[helix402]

Do you have a wife who sits in the back?

[ManaghGB]

helix402 said:

Do you have a wife who sits in the back?

No that whine comes from the front and is incurable apparently.

[Maracus]

An E30 325i I previously owned developed this type of whine, I thought it was the diff. Over 40mph it just got worse.
Turned out it was the o/s/r wheel bearing.

[E-bmw]

ManaghGB said:

My 2005 130i has developed a whine from the rear which gets louder the quicker you go

You could always let her sit in the front.

[E-bmw]

ManaghGB said:

helix402 said:

Do you have a wife who sits in the back?

No that whine comes from the front and is incurable apparently.

You beat me to it, I answered before reading down.