The Harv

I have a C250 estate, new in Dec2015. The car as done 4500 miles and the outer edge on both front are wearing badly the rest of tyre is hardly worn. It is going in for a check. The tyre pressures are checked weekly and the car doesn't pull and drives perfectly
As anybody else seen this type of wear.

Mmr1

Outer edge wear is usually low pressure, what have you been running in your tires,no it's not normal

The Harv

The car as been back to the dealer and they say all is ok. The Tyre pressure are checked weekly and and never alter and are run at recommended pressure. The difference between inner and outer edges are at least 2.5 mm after 5000 miles.

Mmr1

If it's that noticeable get an opinion from a tire dealer, adding a few pounds air should help it to wear more in the center and help handling