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Hi, i'm fairly new here but i really need some help, i have included a picture of one of my front tyres, this is the wear that has been happening on both front tyres on the inside edges, please can anyone give me a clue as to what is causing this, this tyre has done less than 10k miles, the car is a completely stock W212 E200 Sport, the tyres are Continental Contisport 18" tyres that were factory fitted (i stayed with the same tyres)
i am grateful for any help (i have posted on another section of the forum i hope i've posted in the right sections)
i had new tyres fitted on wednesday and they said that the camber, etc was all ok, i have just taken off that same wheel today (it was losing air due to a puncture) and the wear on the inside edge has already started to wear a groove that is noticeable (this new tyre is only 3 days old) the garage want to do a four wheel alignment check, but this was carried out after the last tyres were changed and, well, look at the picture, i guess it didn't work, so i'm not sure whether i should let them charge me £80 to do it if it's not going to work
yeah i was thinking of going to a tyre garage that don't do anything else, i guess they might be the best to sort this out cos tyres are expensive and they are getting damaged quickly.
so is the tyre rubbing on something? this surely cannot be road wear can it? it just seems too far on the side to be the road
I had this exact problem on a 1 yr. old Lincoln that had prematurely worn the tires exactly like yours.
Turned out the culprit was bad motor and transmission mounts. These were eventually recalled by Ford, and replaced both engine and tranny mounts. They are basically a rubber pad that is sandwiched between to pieces of steel to absorb vibration.
This could also explain why the alignment was in spec, while the car is stationary and being checked for calibration. The wear came from the uneven side to side load of the engine moving while driving.
That tire has less than 10k miles on it?? it looks TERRIBLE!! it's cracked, worn throughout (not just the outside rim) and just in crappy shape .. a 10k mileage tire should look WAAAY better than that -- something is not right with your alignment despite the shop's recommendation (agree with the above member stating to find another shop) ..
What does the tire look like ON the vehicle -- any pictures of the stance of the vehicle from the off-angle view to grossly evaluate the camber?
In 10,000 miles you're already down the the wear indicators... i'd expect this from an E63 rear tire set when the E63 is driven aggressively every day .. not from an E200...
Wishing you good luck in finding a fix for this. Please update us when you find a solution
It does look like a toe adjustment problem. There might a worn/broken suspension component that the alignment folks overlooked.
There is a link here to E Class issues with worn front thrust link bushings - similar premature inner edge tire wear - could be something to check for.
Just got new tires and had the same type of wear on the inner part of the tire. I am not sure what caused it but I just got an alignment done with the new tires so I will see if they begin to wear the same way. Anybody else able to confirm what causes this?
Assume camber to be a negative 0.7 degrees (top of wheel versus bottom of wheel). If you have an 18" (457mm) wheel, use that as your baseline. Taking the tangent of the angle (tan[0.7degrees]=0.122) and multiply that by the diameter of the rim (0.122*457mm), the top of the wheel (not the tire) should be approximately 5 1/2mm "inboard" of the lower part of the wheel. If you have a 20" wheel, use 20"*25.4mm/"=508mm and multiply that by 0.122.
You need a vertical (and I mean vertical!) standard you can place next to the wheel. Measure from the standard to the bottom and then the top of the wheel. If the difference is ~5 1/2mm (with error bar equivalent to +/-0.5 degree) ie., the top of the wheel is tilted in 5 1/2mm more than the bottom of the wheel, it's not the camber. If it's not the camber, check the toe.
This is not rocket science. Seriously. Camber or toe. One or the other. It might be a bad bushing or ball joint or mis-adjusted tie-rod end but it is nothing but numbers.
Looking at these tires on the car it should be easy. If the tires are tilted in like a drunken Irishman (and I *like* drunken Irishmen!), it's the camber. If they are almost vertical, then I would bet dollars to donuts the tires are toed out significantly.
Search for "how to align a car using strings". It's a PITA but I use it to align my car and it works.
You need to quit going to "tyre places" and go to the MB dealer. Any repair will cost less than a new set of tyres every 10k miles.
You have a serious issue probably beyond a simple alignment. To get that kind of wear you must have suspension damage and it should be visible with the car at rest.
I have a similar problem on both sides of the car. There are also what look like rub marks on the suspension strut where the tyre has rubbed. I've been under the car on the ramps at Mercedes and there is about 4-5mm gap between the tyre and strut when stationary. Not sure how much the tyre will grow at speed. The garage don't have an explanation at present and I have refused to drive the car until I get a solution approved by Mercedes technical department. They have a possible mod, but I want a guarantee that this will fix it and that it is fully backed by Mercedes and I have something I can give my insurer to confirm the modification is fully approved by Mercedes.
Just adding some photos of my e350 front struts. Mercedes deny these marks are caused by the tyres rubbing, but they line up exactly with the worn areas on the side of the tyres.
Just for info, the tyres were 235x35 x 19" Yokohama. I've replaced them with the latest Continental Contisport 5 tyres. They had done 12000 miles and were about half worn across the main part of the tread.
06-24-2015, 07:58 PM
