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I had my rear tires replaced in June, replacing the P Zero 275/35R20 MOE with identical new ones. Since I live in California, we haven't had any rain until recently. Now that rain has come, I suddenly notice the car losing traction in the rear, so I check the tires, and they look totally bald (see photo). Here's the thing: I've only put 3773 miles on the car since the tires were replaced. Does that seem at all plausible? I'm wondering now whether the tire guys replaced the fronts by mistake. Or if they forgot to replace the tires at all (yes, I didn't take a close look when I picked up the car, foolish me!). Am I crazy? Is this kind of wear normal? I'm not a heavy footed driver, and almost all the miles would be in around-town driving in Econ/Comf mode!
Which car?
Probably not normal, I get more tire life from the similarly wear rated Michelins in the 65.
It does seem you have heavy outside wear from the picture so you do have an alignment problem.
2015 S550 RWD. Looks like the date codes read 5021, so they are plausible for my June install date. I just can't quite believe that this car will eat rear tires in less than 4000 miles/6 months.
a) inflation pressure ?
b.1) %-age of rapid accelerations when the light goes green ?
b.2) aggressive or casual driving style ?
c.1) %-age of time spent on interstates ?
c.2) Average speed on interstates ?
d) %-age of time Distronic is controlling speed ?
e) life of rear brake pads ?
a) inflation pressure ?
b.1) %-age of rapid accelerations when the light goes green ?
b.2) aggressive or casual driving style ?
c.1) %-age of time spent on interstates ?
c.2) Average speed on interstates ?
d) %-age of time Distronic is controlling speed ?
e) life of rear brake pads ?
I see where you may be going, but we are talking about a tire that is evenly worn to 2/32" at 3700miles. Even those who drive S65s/SL65s like maniacs do not wear tires quite that quickly. I still wonder if they could have missed changing these rear tires.
I'm leaning towards the shop just changing your fronts or not changing any tires at all since its evenly worn down to the wear-bars in the center. If it was recent, take a look at the date codes on the sidewalls (see below link to identify it). You do need to get that alignment checked out also looking at the outer edge of the tire.
I'm leaning towards the shop just changing your fronts or not changing any tires at all since its evenly worn down to the wear-bars in the center. If it was recent, take a look at the date codes on the sidewalls (see below link to identify it). You do need to get that alignment checked out also looking at the outer edge of the tire.
It's a real mystery. The car is gently driven (basically all Econ/Comf), I'd estimate 75% in-city miles, 25% interstates. Brakes just got done a couple months ago, so can't really tell from those.
Date codes are 5021, which seems plausible for a tire installed in June 2022. I bought the car in March 2022, which makes it hard to imagine that these could have come with the car and be so worn. The fronts show 0321 and 0521, which is about a year before I bought the car, so those don't seem new. Mystifying.
It's a real mystery. The car is gently driven (basically all Econ/Comf), I'd estimate 75% in-city miles, 25% interstates. Brakes just got done a couple months ago, so can't really tell from those.
Date codes are 5021, which seems plausible for a tire installed in June 2022. I bought the car in March 2022, which makes it hard to imagine that these could have come with the car and be so worn. The fronts show 0321 and 0521, which is about a year before I bought the car, so those don't seem new. Mystifying.
Good thing they have a warranty. Assuming both your rears are worn similarly, the warranty should be pro-rated and cover a majority of your expense to replace them.
Good thing they have a warranty. Assuming both your rears are worn similarly, the warranty should be pro-rated and cover a majority of your expense to replace them.
Tires I have purchased from Discount Tire have had the mileage warranty halved due to my car being equipped with staggered tire sizes. I solved that in the 221 S-65 by fitting same size/width tires all around. This was the end of understeer. Though somehow not the end of tire wear issues. Hmmmmm....
Well, the mystery is unsolved, but the shop is submitting the tires to Pirelli to see if they will offer any credit (but they are not optimistic -- no mileage warranty on these). So that's another $1100 in tires consumed!
If that shop does not offer a warranty on those tires I would out them here and never buy from them again. Same with Pirelli. I have 10K miles on my Michelins with some aggressive driving on my S63 and they still look fantastic. Good for another 20K or more.
That is nuts I have the MOE Michelin's and I have put only 8k on since I bought the car but they are barely worn and yes I have a heavy right foot, something is totall wrong!!
If that shop does not offer a warranty on those tires I would out them here and never buy from them again. Same with Pirelli. I have 10K miles on my Michelins with some aggressive driving on my S63 and they still look fantastic. Good for another 20K or more.
Seems no mileage warranty on these is pretty standard? Tire Rack lists them as no warranty, as well.
Ya, you should get at least 20k miles out of the rears. I generally do the rears every 20k miles and the fronts every 40K miles. Something is not right here unless you are constantly driving over battery acid or something.
Which P-Zeros do you have? It appears you are correct - the All Seasons have a treadwear warranty, but the Summer tires do not.
Yup, the summer tires, which are the OEM standards for the 20" wheels, as far as I know.
I remain mystified. I might have been running them a few pounds low on pressure (checking the tire pressure sensor readings against a reliable gauge suggests the tire pressure sensor readings are about 3 psi high). And the tread wear certainly suggests that the alignment was off. But neither of those factors should be enough to wear them out in less than 4000 miles.
P Zero left rear at 31K+. 85/90 % hwy miles. No wear bar visible but these tires are ready to come off. No unusual wear front or rear.
I’ll try for a wear bar shot manana.
Photographer I am not.
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