C450's with 19" ContiProContact Run-Flats - Please share your treadwear
As I posted in another thread, I am getting terrible treadwear on my factory 19" ContiProContact Summer High Performance tires.
After 3200 km's, my fronts are down to 6/32nds (both sides), while my rears are still at a reasonable 9/32nds.
I have a dealer service appointment scheduled for 23 June for a full alignment and diagnosis of this tire issue. My service manager agreed that these tires should be nowhere near this spent on only 3200 km (2000 miles), even on a full AMG that's not close to normal.
If I do my math, the tires start at 10/32nds and no longer pass inspection at 3/32 (although I would never go that far with any tire myself). That means 7/32nds of total life. At 6/32nds currently, that means I've worn out 4 out of 7/32nds of tire life, equating to 58%... So if 3200 km's equals 58% wear, that means my tires will be completely done at 5500 km's (3400 miles)...
Could others with C450's and these tires comment on their treadwear experience, please? I'd like to collect a sampling from others to determine how far off my experience has been!
Last edited by Mr. J; Jun 8, 2016 at 03:56 PM.
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I suspect the tread wear will accelerate after the break-in period
Not letting this go!
I'm not overly optimistic but will wait to see what corporate has to say...
Front toe was 1.9 degrees when the spec is 0.5 degrees, I think. It's my understanding that is a major difference from spec...
Last edited by nvestr; Jun 27, 2016 at 09:32 AM.
Either way, I got a free alignment (it was way off) and got 2 brand new tires, so that makes me a happy camper!

having had a C450 since january, with now 3200 MILES on it 5120 KM, I noticed they looked a little thing. Sure enough, they are at 5MM in the front and 7MM in the rear.. bout 6/32 fronts. These are the pirelli run flats in the USA.
That seems REALLY POOR in my opinion. Having had mercedes for years E500, C43, CLK450, E320, C320, C300 and gotten between 20K MILES and 40K MILES (yes, 40K on conti contact on the C320 and C300) I find this amount of rubber lost on the C450 pirelli run flats to be appalling.
Definitely going to bring it up with the SA or other manager







