brainstormer1

Being told by dealer that the cupping and heavy wear on the inner inch or so of my front tires is normal.
Stating that negative camber is by design.
They showed my alignment printout which is within tolerance, but I am down to thread with cupping @ 20k miles....
Noticeable cupping and wear at 10k miles....

ANY INPUT WOULD BE APPRECIATED BEFORE I TAKE ISSUE TO NEXT STEP...

LaunchPad

Stock suspension or lowered?

brainstormer1

Stock suspension and no lowering..

hyperion667

Did you buy tires AT the dealer or something?

brainstormer1

Yes, purchased tires at dealer. I have an extended warranty so no one touches the car but Mercedes. Don't want any reason to void the warranty.

How is the tire wear on your CLS on the fronts? Whether your're hard on it or not...

Vic55

Whats your tire pressue? (cold)

brainstormer1

Dealer set and suggested to maintain at 39psi in fronts.

hyperion667

Only drive it on weekends.....and minimally at that

dark mod

Mine has the same issue, just replaced the fronts last month. Wear pattern is heavily weighted to one side. Maybe the camber is intentional but I find it strange that the fronts wear out faster than the rears

K-Mac

Reason is because OEM there is only front and rear basic Toe/directional adjustment!

No Camber or Caster to adjust tire contact angle. We saw the need therefore to design and re-instate from the early 90’ full/precise adjustment capability.

The K-MAC patented design also at the same time replaces the 4 front and rear highest wearing bushings.

Is precise single wrench adjustment – accurately under load direct on alignment rack. For the front (only) you can fit inaccurate “one only offset position” fluted bolts but they only supply 1/8” (3mm). K-MAC kit provides up to 3 times this adjustment range and the bushings are also designed to still supply 2 axis movement but without the OEM oil and air voids. Result is therefore significantly improved brake and steering response.

CAMBER – Allows to actually change the tire contact angle resolving costly, premature edge wear, improving traction/understeer/oversteer

CASTER – Correctly resolves steering pull, increases steering response. With better turn in and high speed directional control. Along with improved anti dive/lift under brake and acceleration.

Essential for day to day commuting encountering high cambered roads, altering/lowering height, load carrying, suspension sag, fitting wide profile tires or curb knock damage. Track days capability to dial in extra negative front Camber and fine tune rear for maximum traction.

Rear Camber kit includes ‘extra’ Toe adjustment to compensate for the new Camber facility. Adjusts the lower control arm inwards (comes with bush extraction tool allowing to installon vehicle). We do not manufacture adjustable ‘arms’ – as difficult to install/adjust and to resolve premature inner edge wear need to reduce all important clearance top of tire to outer fender.

Front Camber and Caster kit P/N 502916K $480
Rear Camber (and extra Toe) Kit P/N 502226K $480

Also manufactured is set of ‘12’ bushings for the 6 ‘multi link rear arms’. Designed to significantly improve rear end stability, reduce twitch/flex, gain traction – especially when applying power lane changing/overtaking. P/N 502628L $480

Delivery one kit $40 or front and rear kits $50. We accept PayPal, Visa or MasterCard.

brainstormer1

Thanks Kmac, as soon as my warranty is up, I'll be purchasing.