Early Rear Tire Wear
#1
Junior Member
Thread Starter
Early Rear Tire Wear
My 2017 E300 is 15 months old with a little more than 12,000 miles. Was stunned when I brought the car in for a recall and was told the rear tires (staggered) were worn on the inside. The dealer said that early wear on the rear tires is common on the newer E and C-class cars. Had little choice but to replace them.
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makris0000 (10-28-2017)
#5
Rotating won't help if the tyres are Asymmetric as the inside edge stays on the inside whichever of the four corners you put it. Rotation only helps even wear out between driven and non driven axles. To avoid inside edge wear you only need swap left to right so staggered sizes don't matter then. However at least on my car they fitted assymetric tyres from the factory so I can't even do that.
I don't think run flats and Mercedes big negative camber play well; the stiff sidewall doesn't deflect and is pushed into the road with less load and hence less wear in the actual tread area. To try and save my second set of tyres I'm running them a few psi above the unloaded recommended pressure to push the centre of the tyre down and help unload the inside sidewall. Hasn't affected handling but will hopefully get better miles out the tyre.
I don't think run flats and Mercedes big negative camber play well; the stiff sidewall doesn't deflect and is pushed into the road with less load and hence less wear in the actual tread area. To try and save my second set of tyres I'm running them a few psi above the unloaded recommended pressure to push the centre of the tyre down and help unload the inside sidewall. Hasn't affected handling but will hopefully get better miles out the tyre.
#6
MBWorld Fanatic!
What tire pressure are you running your tires at? When I picked up my car it was 39 front and 41 rear. I thought it rode too rough. I reduced to 38 all around. Certainly improved the ride in comfort mode.
#7
Junior Member
Rotating won't help if the tyres are Asymmetric as the inside edge stays on the inside whichever of the four corners you put it. Rotation only helps even wear out between driven and non driven axles. To avoid inside edge wear you only need swap left to right so staggered sizes don't matter then. However at least on my car they fitted assymetric tyres from the factory so I can't even do that.
Many winter tires are directional, which means that the direction of rotation does matter, and those tires cannot be rotated side-to-side unless you unmount and remount and balance. Directional tires typically have an arrow on the sidewall that point in the direction of (forward) rotation.
Having said that, swapping the tires side-to-side is not likely to help the inside wear problem, because the inside will still be inside.
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#8
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My 2017 E300 is 15 months old with a little more than 12,000 miles. Was stunned when I brought the car in for a recall and was told the rear tires (staggered) were worn on the inside. The dealer said that early wear on the rear tires is common on the newer E and C-class cars. Had little choice but to replace them.
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Last edited by K-Mac; 10-30-2017 at 01:08 AM.
#9
Junior Member
Thread Starter
This update. Turns out my wheels are not staggered, as the dealer's "tire guy" said they were. When I called him on it he said he sees so many tires that he assumed these were. The bigger problem is that the rear tires wore, on the inside, after less than 13k miles. And this assumes they were rotated (I don't know if they were) at the 10k service. The dealers says they have since seen several new e300s with similar premature wear. Trouble is - I had to buy two new tires. There is something wrong with this picture. Tires should not wear at sub-13k miles. Oh, and the tires were well-maintained and had been aligned once in the first 13k miles by the dealer because of a blown tire, with nothing else unusual (big potholes) during the span.
#10
Super Member
This update. Turns out my wheels are not staggered, as the dealer's "tire guy" said they were. When I called him on it he said he sees so many tires that he assumed these were. The bigger problem is that the rear tires wore, on the inside, after less than 13k miles. And this assumes they were rotated (I don't know if they were) at the 10k service. The dealers says they have since seen several new e300s with similar premature wear. Trouble is - I had to buy two new tires. There is something wrong with this picture. Tires should not wear at sub-13k miles. Oh, and the tires were well-maintained and had been aligned once in the first 13k miles by the dealer because of a blown tire, with nothing else unusual (big potholes) during the span.
1. The so called tire guy has no knowledge of your tire size and "assume" they were staggered.
2. You wheels were aligned by the dealer, but they either did a lousy job or did not do it.
3. Since the wheels were aligned by them and now you got premature wear and have to replace tires, they conveniently told you that they have seen several new cars had similar problem. Hogwash!
Too many times, I have seen dealers tried to BS to customers and assume they know nothing. Go to another dealer for any service in the future unless you like the way they treated you.
#11
MBWorld Fanatic!
Last edited by ua549; 11-14-2017 at 09:30 AM.
#12
Junior Member
Thread Starter
13k miles for a set of tires is just about what I averaged over the past 10 years of mostly city driving. I rotate, balance and align every 5k miles. I replace all 4 tires at the same time. My BMW 535i came with Goodyear Eagle Sport tires. After that I bought Michelin Pilot Sport A/S, Continental Extreme Contact and Pirelli P Zero tires. I sold the car with 57,000 miles. The treads were worn down to 5/32". It was ready for its fifth set of tires.
#13
Hiya Guys, Don't feel so bad now got just over 20k out of my Michelin Primacy3 rears, nearly on wear limiter (2mm). I was expecting post 70k like in the old days!The boss (wife) has come up with the practical solution to buying a set of new alloys and having a set of winter tyres, rather than just replacing the rears:-)Any body know what the wheel sizes are and what I sizes I could put on for the forecast bad winter in UK. Thinking 275-35-r19 and 245-45-r19 are a bit OTT for winter plus 16" tyres are cheaper? will I still need Run Flats?Any info greatly received.ThanksBrian
#14
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2024 AMG EQE SUV , 2021 E63S Wagon - gone, 2018 E63S Sedan - gone
My 2017 E300 is a 4matic. Car has about 15500 miles and the tires are evenly worn. Tread measurements show that I will get around 40,000 miles before replacement is required. Tires are Perilli P7 18" runflats. I can't understand how all season tires on rear-drive cars would be wearing out so fast and unevenly.