Anyone identify a fault? Vibration turning right.

[Trackdayer]

Hi all,

On a friends Mk1 TT V6, upon turning right at speeds over 30mph, he gets a vibration. It feels like a front brake caliper is repeatedly grabbing the front left wheel, or that wheel is sticking/binding.

The car drives faultlessly in all other respects and the brakes are fine.

So far we have:
1) Checked for contact between wheel and body/wheel arch/inner arch. None.
2) Replaced entire n/s/f driveshaft for a brand new one

Any ideas?

Thanks

[Jazzy Jag]

Does the car have traction control?

An ABS or sensor problem makes the car think that the wheel has lost traction, so applies the brake?

[sliks]

Check wheel bearing, check top mount, Check control arm ball joint and bushings

Edited by sliks on Friday 14th May 22:13

[E-bmw]

NSF wheel bearing.

[Trackdayer]

Thanks gents I forgot to add it has brand new top mounts and the wheel bearings have no play in them

Good shout on the ABS sensors and lower arm

[GreenV8S]

That's very likely to be a damaged wheel bearing. If it's damaged that can cause notchiness, but it may only be apparent when the wheel is loaded sideways.

[this is my username]

I had something very similar on my Mini.

Dodgy wheel bearing caused the traction control to come on when going around bends.