MB Service Dept
And the seat problem is back again and getting to the irritating level...very noticeable and I am not a heavy guy. So I think they actually did nothing, or very little. Should I contact the Service Manager, who told me if I wasn't happy to speak to him directly and therefore report my concerns?


"Tires should be rotated in a "modified X" pattern meaning only the tires being moved to the drive axle are crossed to the opposite side of the vehicle. The remaining two tires are moved from the drive axle to the free rolling axle, remaining on the same side of the vehicle. This method of rotation helps promote a more even and uniform tread wear pattern for all four tires. The only exception to this would be the use of "directional" tread design tires. These tires would remain on the same side of the vehicle and be rotated straightforward and straight back. If you have a full size spare that is the same size and type of tire it must be rotated into service during normal tire rotation intervals." I have e-mailed them the question.
I could not find out whether my tires are "directional" or not. The MB manual says unidirectional tires have an arrow of the sidewall indicating the intended direction of rotation. I couldn't see any stinking arrow, but it did say "OUTSIDE" on the tire itself.
My guess is the Continentals are not "directional" and can be swapped from side to side, even though this flies in the face of the old saw that radial tires are directional and the old bias-ply are not.


