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After 14,000 miles, One of my rear tires has severe wear on the inboard side. I had a 4-wheel alignment done about 5,000 miles ago. I had the dealer look at it, and they said everything checks out good. They said this wear was normal. Today I noticed that the rear tire are canted out a lot on the bottom. You can really see it when comparing it to the front tires. I took a level to it, and they were not even close to vertical. The front tires are vertical. This thing looks like a dune buggy in back. I am taking it in tomorrow for an aux battery failure, and I will ask them again. Any thoughts?
Mine are like that too. Wouldn't be surprised if it is supposed to help stabilize cornering. Assuming there IS a logical explanation, wondering if, at the very least, the rear tires could be reversed to even out the wear/extend the lifespan. What did the shop say?
On my C450 they wore in reverse...as I am sure others have seen. I ate through my front tires, almost completely, in 9000 miles but the rears aren't even 1/2 way.
Switched to the Michelin Pilot Sport all around. So much better. These cars eat through tires, unfortunately.
Mine are like that too. Wouldn't be surprised if it is supposed to help stabilize cornering. Assuming there IS a logical explanation, wondering if, at the very least, the rear tires could be reversed to even out the wear/extend the lifespan. What did the shop say?
They said it was in spec because I have sport suspension. This really pisses me off because the factory put on sport suspension by mistake - I didn't order it. So this is going to cost me not only in ride quality, but also in tire replacements.
They said it was in spec because I have sport suspension. This really pisses me off because the factory put on sport suspension by mistake - I didn't order it. So this is going to cost me not only in ride quality, but also in tire replacements.
Do point out that OEM - all dealers or alignment shops have to work with is only ‘Toe’ adjustment front (and rear)!
OK if vehicle maintained and driven at showroom height, but day to day commuting encountering high cambered roads, altered height through lowering, load carrying or suspension sag, fitting wide profile tires, curb knock damage - the feature of having front and rear “ongoing Camber adjustment” to change tire “contact angle” is essential along with feature for extra Camber to reduce under steer/increase track width on Race days. With front Caster to “correctly resolve” steering pull and improve brake and steering response. We saw the need therefore to design, manufacture and reinstate from the early ‘90’s kits that provide “precise” adjustment (on car under load direct on alignment rack). Also replacing the 4 front and 4 rear highest wearing suspension bushings at the same time. Result is no more ongoing trips to dealers or alignment shops or constantly changing tire brands. Fixing it right…. the 1st time! For the front (only) you can purchase fluted bolts (not C63/S, S63/S65) – but they are inaccurate having ONE ONLY OFFSET POSITION, providing 3mm (1/8”) which is a minimal 0.3 degree change. The K-MAC patented design allows up to 3 times the adjustment range and is “precise accurate single wrench” adjustable. Rear kits also provide Camber (and additional rear Toe adjustment to compensate for the new Camber facility). We do not manufacture rear Camber arms – as difficult to fit, access and adjust. Also to resolve premature inner edge tire wear need to reduce all important clearance top of tire to outer fender. Instead the K-MAC unique patented design precise single wrench adjustment system replaces the “lower arm inner bushes” moving base of tire inwards (or outwards to increase negative camber/track width). Comes with bush extraction tool allowing the Camber bushes to be installed on vehicle. The front bushings are 2 axis/self aligning but without the oil and air voids of OEM. Result is noticeably improved brake and steering response. No modifications to fit – come with instructions and extraction/insertion tubes.
Also manufactured for the rear suspension is a full set of 12 replacement bushings for the 6 multi link arms. Providing significant improvement to rear end stability. Less flex/twitch, increased traction especially when applying power lane changing/overtaking.
W205 Front Camber and Caster C400/C450/C43/S63 AMG 4matic #503216K $480 C63/S, S63/S65 AMG #503316K $480
Rear Camber (and extra Toe) #502226K $480 Rear multilink arms performance bush kit #502628K $480
Delivery $30 one kit or $50 front and rear (average delivery time is 3 to 4 days). We accept Visa, MasterCard or PayPal.
06-12-2017, 05:25 PM
