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I think it has to do with switching the rears to the front. The camber/toe in is different on the rear tires than the fronts so, when you switch the tires they have different tread wear from the rears. When you put them on the front they will wear differently because now the tire is running on a different part of the tire and will prematurely wear.
Thats my theory. I surely hope this isn't from rubbing due to the larger footprint..
I think it has to do with switching the rears to the front. The camber/toe in is different on the rear tires than the fronts so, when you switch the tires they have different tread wear from the rears. When you put them on the front they will wear differently because now the tire is running on a different part of the tire and will prematurely wear.
Thats my theory. I surely hope this isn't from rubbing due to the larger footprint..
I think the problem he is having was from the old 245s not the 265s because i doubt they can get that bad in 1 day.
looks pretty good. i have been up in the air on what size to get for summer i decided with 255 and 295 for the rear.
i have a similar wear issue on my tires as well. the inside is practically gone. I am getting an alignment in a few weeks for a few reasons so hopefully my new tires wont see the same issue
BG: I understand the desire to have as big a rear footprint as possible but, the geometry with a 295/255 is going to be way off. The speedo will not be correct and the differential of 40 (295-255) is twice as big as factory of 20 (265-245).
I went with 285/265 which is almost as big as you can go on rear and IS as big as you can go on front. Keeps factory geometry of 20 and speedo will not be affected.
Why did you decide to go with these numbers? You should follow my lead after the way I smoked you at AMG school
BG: I understand the desire to have as big a rear footprint as possible but, the geometry with a 295/255 is going to be way off. The speedo will not be correct and the differential of 40 (295-255) is twice as big as factory of 20 (265-245).
I went with 285/265 which is almost as big as you can go on rear and IS as big as you can go on front. Keeps factory geometry of 20 and speedo will not be affected.
Why did you decide to go with these numbers? You should follow my lead after the way I smoked you at AMG school
PS: Where is my iPad that you stole?
A couple of things here. First it won't matter if you keep the ratio the same for the speedo as a rear tire size change will make the speedo to read off.
the wear on the old fronts looks like camber wear and it is common with our and other hi per cars. I would have an alignment before driving the new ones to make sure it is in spec.
If you go to the charts at tire rack you can see that the 265 size is not recommended on a 8 1/2 in wheel. 255 is the largest. Even though it won't rub it is not the correct size as the rim pulls the bead in too far and it will not have a tread flat on the ground.
285 is the largest recommended on the rear 9 1/2 wheels.
That looks like an alignment issue, more than likely your toe is out of spec. It'll cause the corners of the tire to scrub like that.
I believe it's a combination of two things:
One, the factory camber that AMG dial in as it's a high performance vehicle.
Two, I had the wheel alignment checked and redone when I had the KW HAS kit fitted and my shop told me that my factory alignment was all over the place.
He thought it looked like no wheel alignment was done at the dealership before I took delivery which may have been true as there were numerous issue with my delivery.
After lowering and wheel alignment turning in to corners and going around round abouts feels a lot better.
My set up now it 265/35/19 on the front and 295/30/19 on the rear.
The width has nothing to do with the speedo, and both new size tyres are very close in over all diameter to what it came from factory with.
My advise to thise reading this post:
Conduct regular checks on your tyres especially the fronts, I knew the outter edges of the fronts were wearing but didn't know about the inner so I nearly got caught out having a blow out.
Our factory tyre repair kit would not have gotten me back on the road if this tyre had blown.
One, the factory camber that AMG dial in as it's a high performance vehicle.
Two, I had the wheel alignment checked and redone when I had the KW HAS kit fitted and my shop told me that my factory alignment was all over the place.
He thought it looked like no wheel alignment was done at the dealership before I took delivery which may have been true as there were numerous issue with my delivery.
After lowering and wheel alignment turning in to corners and going around round abouts feels a lot better.
My set up now it 265/35/19 on the front and 295/30/19 on the rear.
The width has nothing to do with the speedo, and both new size tyres are very close in over all diameter to what it came from factory with.
My advise to thise reading this post:
Conduct regular checks on your tyres especially the fronts, I knew the outter edges of the fronts were wearing but didn't know about the inner so I nearly got caught out having a blow out.
Our factory tyre repair kit would not have gotten me back on the road if this tyre had blown.
I know I'm getting into the weeds a bit here, but the wear pattern on the tires shown looks way more like a toe issue and not a camber issue.
A camber issue would typically see an uniform change in wear from one shoulder of the tire to the other, whereas a toe issue is usually isolated to one shoulder in a defined spot with relatively even wear across the rest of the tire.
In your pic, the wear looks fairly even across the tire (look at the tread depth in relation to the wear bar) with a pronounced increase in wear on the immediate shoulder.
I know I'm getting into the weeds a bit here, but the wear pattern on the tires shown looks way more like a toe issue and not a camber issue.
A camber issue would typically see an uniform change in wear from one shoulder of the tire to the other, whereas a toe issue is usually isolated to one shoulder in a defined spot with relatively even wear across the rest of the tire.
In your pic, the wear looks fairly even across the tire (look at the tread depth in relation to the wear bar) with a pronounced increase in wear on the immediate shoulder.
Yes, this is what puzzled me.
And my shop hop told me everything was out of wake.
What at about the premature ware on the outside of the tyres which I noticed very early on from buying the car.
I have seen that others have complained about this as well.
Left and right 245's tyre, left tyre is back to front I should flipped so the inside edge was inside
Notice that the tread grooves are wore down on the outside edges.
FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
Originally Posted by msd3075
I know I'm getting into the weeds a bit here, but the wear pattern on the tires shown looks way more like a toe issue and not a camber issue.
A camber issue would typically see an uniform change in wear from one shoulder of the tire to the other, whereas a toe issue is usually isolated to one shoulder in a defined spot with relatively even wear across the rest of the tire.
In your pic, the wear looks fairly even across the tire (look at the tread depth in relation to the wear bar) with a pronounced increase in wear on the immediate shoulder.
I concur with your assessment. AMG vehicles by default have intoeing plus negative camber. The mostly inner shoulder wear is expected and is more a result of intoeing than negative camber.
Keep an eye on your new tyres, hopefully the coupe is better set up than the sedan.
I'll start looking into a front and rear camber kit and if there's anything available to adjust the toe.
I want to get this sorted before getting my new wheels and tyres on.
I dont want want to be buying tyres every year.
Keep in mind W205 OEM – a “Full Front and Rear Wheel Alignment” is only adjusting the Toe (all W205’s). Yes that’s right – we saw the need therefore to design and reinstate from the early 90’s – the correct meaning of “Full Precise (ongoing) adjustment capability”.
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A couple of things here. First it won't matter if you keep the ratio the same for the speedo as a rear tire size change will make the speedo to read off.
the wear on the old fronts looks like camber wear and it is common with our and other hi per cars. I would have an alignment before driving the new ones to make sure it is in spec.
If you go to the charts at tire rack you can see that the 265 size is not recommended on a 8 1/2 in wheel. 255 is the largest. Even though it won't rub it is not the correct size as the rim pulls the bead in too far and it will not have a tread flat on the ground.
285 is the largest recommended on the rear 9 1/2 wheels.
so you say the max I can go without any trouble is 285 r 255 f ?
I have had this set up for 2 days. I have driven less than 50 miles so I am not one to ask just yet. I went with the Michelin AS/3 Plus. I think thats what they are called. The newest all season Michelin available. Someone on this forum recommended them over the PSS and I looked into them and found they are 85% as good in summer and 200% better in rain and snow so to me it was a no brainer living on the East Coast with snow and rain.
Too early to tell about traction because it is cold and snow is on the ground but, logic would dictate that the grip has to be better with a wider footprint and an all season rubber over the Dunlop's which are known for being very bad in cold, rain and snow..
02-16-2017, 07:48 AM
