Tyres "scrubbing" on inside wall/edge

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Originally Posted by OddBallBoy

But if tyre pressure was low enough to wear that high up the inside sidewall, would you not expect to see at least some similar wear on the outside sidewall?
Reason I'm puzzled is that when you see these Mercs on full lock, doesn't the inside wheel really tip onto the outside edge and therefore off the side of the tyre that's wearing?
If it was a combination of low pressure and toeing out too much, I'd have expected more wear on the tread as well?
Sorry, not questioning your experience/knowledge of these things, I know you guys know your stuff, just trying to get my head round the physics of what you're saying.

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Yeah I think we are all a bit baffled, hence the issue but its good discussing different theories, it is probably not just one thing that has caused it. My friend had a 335d and on our alps trip all the heavy cornering and lack of a diff in combination with his heavy diesel lump meant it often under-steered and by the end of the trip he had completely removed all branding from the outside tyre wall from it rolling over!

Just an update

Merc have no idea what the cause is camber, toe and every other adjustment has been checked and they say that this isn't the issue.

Going to try new tyres keep a close eye on them and see what happens which is a shame cus surprisingly they still have some tread left in them.

Try letting the pressure out of the tyre to see if the inner sidewall folds onto that rub line before the outer sidewall folds

I have had the same issue on my CLK it's pretty common for a Mercedes.
My rear tyres just about get 15,000 miles before they are gone

Any car with negative camber will cause tyre wear on the inside. if the negative camber is large then the inside wear will be comparitvely large. Tyre charactersitics will also influence the inside wear i.e. sidewall stiffness. In the days of the aircooled Beetle, the amount of negative camber was massively increased to give much needed handling improvements for "Auto" events, but the inside tyre wear had to be seen to be believed !