I seem to be having one problem after another with my 2002 A3 Tdi

When I put the car into a corner at reasonable speed the traction control light comes on and i can hear & feel a horrible grinding noise that sound to be coming from the front passenger side wheel and the car judders as the brakes try to kick in. This has only just started happening.

As far as I know the brake pads and discs are ok.

Anyone had a similar experience or know what the problem could be ?

Any help appreciated,

Thanks

Ray