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hi, have read all the related topics on front brake caliperand wheel bearings but have been unable to find one that describes the fault we have with our 2002, 2litre SE+ (auto) :headbang: .
both front wheel bearing were replaced approx 30000 miles ago also o/s front drive shaft 13000miles ago, both front discs and pads last year ( approx 80000miles ago). there is no noise until the car has covered approx6-8miles at speeds over 40mph, then we get a whining/ metal grinding sound from front n/s . the noise goes when the brake pedal is pressed, is worse when taking right hand corners, no noise on left turn or at low speeds, I have jacked up the car and tried to test for knackered wheel bearing ( no play in bearing evident) I did think that the front piston on the caliper was stiffer than the rear one, the pads are about 1/2 worn and shims still attached the caliper floats well on its stud/bolts. are the shims glued to the pads ? should they be central, as one shim appears to have moved a little compared to the other one ( bottom lug bent)..we purchased the car when it was 3 years old ( 59k done by previous owner) now up to 103k...any help would be appreciated........alan
 

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Hi Alan,
The shims should be central on the pad and all the lugs should be clipped over the edge of the pad.
Another thing to check is the hub itself. There have been failures over here in Aus where the hub nut has come loose and the whole hub has started rotating on the stub axle causing wear and a bearing-like grinding noise.
 
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