Grinding noise on 1994 S280

[triba]

I accquired the above car 10 days ago. The car has done on average only 4k per year and wasn't used much at all in the last 6 months. Yesterday, I had both front tyres replaced and since I started to notice grinding noise at the front on the driver side, especially at low speed. I brought the car back for inspection, both front tyres weren't taken off and the brake shields were checked thoroughly. Still the problems persist. I bounced the front of the car at standstill and notice the same noise. An expert friend suggested it could be the anti-roll bar bush and/or ball joint that have worn out. Jacking up the car to replace the tyres could strecth the suspension and caused the problem. Any ideas please.
Thanks in advance.

 

[MondeoMan]

I don't think it could be suspension, and wheel bearing failure at this mileage seems unlikely. My guess would be the brakes dragging, does it disappear when you apply them?

 

[triba]

No the noise wasn't there when braking. Both tyres were taken off and dust was blown away from the pads. Pads were also checked. No problems there.