Excessive wear on rear tires
Based on Carfax, the rear tires couldn't have more than 8k miles on them yet they are down to the wear bar now!
They are continental extremecontact dws06 plus 265/40 R18. Wear index 560.
they appear to wear fairly evenly, driver side outside wears a little less (see pictures).
What could have caused this? I don't drive aggressively at all. Car seems to ride fine.
Thanks for any suggestions!
True they may need to be checked for alignment....or possibly other suspension components ..20 year old car, but also MB's are heavy, tire eating cars.
CL's are great looking cars, enjoy!



But the downside is that it really leans on your tires, to compensate for body roll, I think that might have something to do with it as well
Sounds like this may not be out of the norm.
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The often quoted (reassuring) - “WILL CARRY OUT A FULL FRONT & REAR ‘4’ WHEEL ALIGNMENT”
WHEN IN ACTUAL FACT - all that can be adjusted now is basic / single Toe - “directional adjustment” !
It is all to do with cost cutting and ever increasing speed of new car assembly lines.
NO LONGER ESSENTIAL CAMBER (OR CASTER) TO ADJUST TIRE CONTACT ANGLES - ALLOWING TO SPREAD LOAD MORE EVENLY !
To cater for other then “showroom height” conditions encountered in day to day commuting.
....high cambered roads with excess passenger side edge wear. Wheel squat through load carrying or lowering. Fitting wide profile tires or simply having ongoing adjustment capability for curb knock damage.
Then the frustration of being told “cannot resolve these issues” and with the only possible excuse (to try and placate) - “That it is within factory specs” !!
We saw the need therefore and manufacture for all W215 models incl. AMG.
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Same time replaces the 4 front highest wearing bushings. Monoball / self aligning significantly improving brake and steering response.
REAR SUSPENSION
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