I been to 3 alignment shop and they said cannot align the rear wheels. The camber is off, and wearing the inside tire bad. Help!

 

Rear alignment/camber adjustment is described in the workshop manual Take it to a Merc Dealer! Good Luck

 

The rear camber is not adjustable as it comes from the factory. You can purchase aftermarket solutions. There are Kmac adjustable bushings that go in the lower control arms. Alternatively there are adjustable camber strut arms. I went with the Kmac bushings. They work very well, however, getting the old bushings out can be extremely difficult. Both solutions are listed on ebay, but you may have search for them under SLK320.

Here is a link to the upper camber arms:http://cgi.ebay.com/ebaymotors/REAR-...Q5fCarQ5fParts

Here is a link to the Kmac bushings: http://cgi.ebay.com/ebaymotors/KMAC-...item3a4cee05e5

 

See workshop manual section 2 - 11 for rear alignment check and correction including camber and toe - in. Of course it is set at factory, but if the cars tyres are not wearing properly something is not right and needs checking. It can be adjusted but its worth also checking for any bent components. The suspension parts are very cheap and it may be worth eliminating the problem by doing it that way but of course it will still need setting up

 

Did they check the toe which is adjustable? Toe changes does have a small effect on the camber. if your car isn't lowered you shouldn't have a camber problem. Many have lowered their cars without adding camber kits. My car was wearing the inside edges but it was caused buy being toed out. Are your rear tires also cupping on the inside edges which will cause noise from the rear tires? Some tires are just prone to do this.

 

Those are nice looking adjustable arms. They look beefier than the TVT arms.

 

Those look like the ones that Les was using and had problems with hitting the body on the track... they are bigger diameter than the TVT or SpeedyBenz arms....

 

mbarts has a curved adj. camber bar but most wear issues for rear tire wear are toe related

 

Unfortunately not for the R170...on their website anyhow.

 

Thanks for the responses. When they aligned the rear toe was the same toe (square) and the camber was -2 deg. Yes, the tires are wearing inside and cuping, and noise. No Mercedes dealership in our little town. Will take it to the Mercedes dealer in Jackson MS. Will the toe affect the camber?

 

I lowered my car and added the K Mac camber kit. I had the rear allignment done perfectly and then put on Nitto tires. these tires didn't last long and cupped the inside edge and which made them very noisy. I then bought a set of Yokohama Advan S4's and without any allignment changes the tires have lasted a long time and weraring perfectly. Some tires are just prone to cupping. I had some Pilot Sports 2' cup as well. I am sticking with Yokohama's.