ADVISE NEEDED - grinding noise when reversing

[Leegoubert]

i have just started getting a grinding mouse when slowly reversing sounds like grinding brakes on disc or other metal grinding, can any one let me know if they know what it is, before I take the car into the dealer/ garage- the car is Z4 a drive 35i 2009

 

[bluestreak56]

siezed caliper?

 

[Leegoubert]

Only does it in reverse, but could be

 

[firebobby]

Shoes for the handbrake have come loose and catching when you reverse ???

 

[Nictrix]

Shoes for the handbrake have come loose and catching when you reverse ???

No shoes on the rear, only pads.
I would jack the car and spin the wheels to try and pinpoint where the noise is coming from and see if anything is obvious.

 

[flybobbie]

Get a cat!

 

[cosmobod]

try pushing the metal dust covers behind the discs you might have a stone trapped in them