X290 GT from Steel rotors to CCB discs
1)The steel brakes were not lasting on my vehicle. I bought the vehicle brand new and at 10k km Mercedes replaced all 4 corners only pads for free then at 20k km I had them warranty the brakes again where they replaced front pads and rotors and only replaced pads on the rear because they said the rotors is still good thickness according to Mercedes’ thickness measurements which I found BS.
2)The dust that accumulating on the wheels right after washing the vehicle was extremely annoying.
3)Cost for replacement of steel rotors + pads was close enough to buying the aftermarket CCB. The rotors last longer and you only replace pads.
The CCB so far exceeded my expectations even in the rain. They warm up very quickly and make any noise when it’s raining. Only when it’s dry but I am still breaking them in. You can feel that they’re much lighter and the vehicle handles much better. Also at higher speed the braking is much more improved.
MB is finally offering factory CCB option on 22 GT53 models. Love this, and will probably go this route when my E53 lease is up.
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