What is causing wheel judder on my car when pulling out of junctions?

I own an Audi Q3 and there is slight wheel spin causing judder when setting off or turning out of junctions - but not all the time. Is it something to do with quattro 4 wheel drive or S tronic Gearbox?
It might be caused by a disparity between the tyres of more than 3mm. The quattro system interprets this as slippage and compensates. However, if the S tronic transmission and the Haldex clutch of the quattro system have not been serviced with an oil change, that is probably the reason and they need a service.
Answered by Honest John on

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