Wise words, it would avoid the Mummy, Mummy syndrome of" why am I running round in circles"kth286 said:ambiente
The front suspension has rubber bushes which flex when the car is moving, but do not when the car is stationary.
If your suspension bushes are worn (very common) it could throw the tracking out when the car is being driven, BUT appear OK when the car is stationary.
You need to have the suspension checked first, and worn bushes replaced, before the geometry is set up again.
Go to a Merc specialist that understands your vehicle for the suspension check.
ambiente said:Thanks for all your info,i will try and get someone to check to see if there is any wear .And by the way they charge £68 +vat here in wiltshire.I had it alighned say in march and again in june covering only 600 miles in that time,then they swopped the front wheels over ,and then talked me in to buying two new tyres .each time it goes in with different measurements and comes out with different measurements ???