Come on. We're about the same age. I'll be giving my girl an oil/filter change in about 300 miles. Her first. Got a great jack, stands, a 2x6 throw rug from Wally World and lots of time. It'll be fun....

Damn, I'm gonna hurt the next morning

 

Nah, I'm not buying. Visually inspecting one's tires and checking/adjusting the tire pressure is one of the most important things a car owner should do regularly. The tires are the only thing between the car and the road. I know, it boggles my mind how many people in this country are not treating this with more respect. As others have said, just put the steering in full lock and you can see the edges of the tires to inspect them and rears are easy to inspect while standing behind the car. You should also regularly measure your tread depth. I check my tires and pressure every other Saturday. By then I'm usually about 0.5 psi low on air, so it's time to top up. Tires lose about 1 psi a month and every 10F ambient temperature difference is another 1 psi. There is no excuse for not staying on top of this, especially in a 500 hp performance car with this much torque going to just the rear wheels. You better make sure you know the condition of your tires at all times. I pretty much always have the tire pressure and temperature screen up on my digital instrument cluster to get an instant health check of the car and to know that everything is within operating range. Any early sign of pressure loss or unusual tire, engine, transmission temps would be noticed quickly. I do agree that there are probably some owners that treat this car like a Toyota Camry in terms of looking after it, but try not to be one of them.

 

Wait, what, it’s not like a Camry? 😱

 

Absolutely. Could not agree more. My car lives on the road and avoiding rapid tire failure is paramount. Been there done that. No fun.

In town, no big deal.

 

Guess I've been slacking/out of the loop haha. Thanks

I know 275/35/19 and 305/30/19 was mentioned in this thread; I have the 19"/20" factory staggered setup. May have to try 275/35/19 and 305/30/20 next go around, although the sidewall height of a 305/30 matches up better with a 265/35 than a 275/35. But we're talking about a difference of only 3.5mm.

 

As others have said, only the toe is adjustable on the C63S, so it isn't an alignmemt issue you can solve without going aftermarket.

I had the same issue with my car, and the thing I noticed was how much the front tires ride on their inner edge when at full steering lock. I always deduced the tire wear to this issue and the wear this caused. The only way to get that extreme of a wear angle compared to the rest of the tire's contact patch has to be from the tire riding on it's edge during a wear-inducing situation (like turning tight in a parking lot).

 

Don't just focus on the fronts.

I put a 125k on a 2012 S550 and no longer own the car. It performed great with typical maintenance. Only once did I have a tire wear issue much like you describe. It resulted in a blow out at hwy speed.

However, the inside edge cord wear was not on the front tires but only on the RR. All three others were perfect. 50 miles from our 800 mile destination 400/400 trip, the RR blew. That was when the car was a year old. I always inspect the the fronts but my fault for not checking the rear tires closely.

 

It's the alignment. I remember when I first got my Coupe, the factory alignment was so sh*t the car was "crabbing" and you felt it too when accelerating hard in 3rd gear the car felt like it was sliding over to the side but it wasn't. It was strange.

Owning this car has made me more enthusiastic about suspension and handling now and I get my alignment tweaked and checked every 6 months (it's my daily).

Once your alignment is sorted, you will get proper tire wear 👍

 

Interesting you say that since I had a similar issue with my daily Macan Turbo. I could not take corners and curves. Couldn't set up on them. Went through my first set of tires in 9K. Got an alignment on a whim. It was way out...from the factory. Everything was outside spec. I've mentioned on the Macan forum to have their alignments checked the next time they get tires. It made a world of difference on mine. Made me think I paid how much for what? This is a Porsche? All good now.

 

Sh*t that's strange. It sounds like they do this on purpose. Or maybe it's from shipping and logistics?

The plot thickens 🧐

 

I'm wondering do your cars pull to the right or have a crooked steering wheel slightly left? I've gotten many alignments at reputable track shops near me however, none of them could solve my pull to the right, even after new front tires. My wheel is slightly to the left in order to compensate for the pull. Anyone have anything similar?

 

Yes, had the exact same problem on mine. It really drove me nuts especially on the freeway because the bloody steering wheel was tilted in order to stay straight. After taking it to one alignment place they completely overlooked it and said it was normal. I was like, come on man. So I went to an alignment specialist in Sydney (Road & Race Performance Rydalmere) and this guy Peter completely fixed it for $120 AUD plus sorted out the "crabbing" issue. So far I've gone there 3 times for tweaks here and there and even if it costs a bit extra, the guy knows what he's doing, and that's worth much more to me.

I highly recommend you go to a specialist alignment shop, they will fix it for you mate. Don't be sucked in by those fancy places, sometimes you need some old school knowledge and a bit of tinkering.

No more crooked steering

 

(( I wish I could find a good alignment shop near me. Do you know what degrees toe you have for your front and rear tires? Also when your steering was crooked did it cause accelerated tire wear or was it the same as when it got straightened out?

 

I had this problem with my F80 M3 and it was actually a know issue. It’s was fixed with a software update which updated the electronic steering system. I wonder if this could be the issue here as well?

I just picked up my C63s at the end of March and maybe over the past couple of months have noticed the problem developing as well. Not sure if it’s an alignment issue or possibly a software issue. Does anyone know if alignments are covered under warranty in the US for a certain time period/mileage?

 

This is a stretch. Any chance it’s from the torque?

Im old. I remember Corvette’s having a problem back in the 60’s. They were running 454cu.in. V8’s. They would twist the chassis and it would fight to go right. Even heard stories of the left fiberglass fenders cracking from it.

Just a thought.

 

My dealer charged me for the alignment (15,000 mi.) $235.00

 

Does anyone have the factory alignment specs for the Coupe?

 

If you care about tire wear I suggest you dont align to stock specs. I recall for the fronts they had a .2X degree minimum for toe and combined with the -2.X degree camber, its gonna wear out the inside

 

I wonder how I ever lived through those 'good old days.' 61 Vette, 3.70:1 rear axle. From Chicago to Ohio on the Indiana Turnpike, WOT 130mph on bias ply tires. 16 yrs old and I knew it all. There must have been an angel that looked out for idiots.