Yes mine 'skits' on full-ish lock.
My tyres are at about 4mm, Yokahoma C-Drive's.
Something characteristic of Mercedes suspension/steering of old was quite an impressive lock on the steering where the road wheel would actually lean right over on full lock, I haven't tried this on mine but if the Q30 does this it would explain that odd contact with the road surface.
I also notice the engine tone gets deeper/loaded on full lock but guessing that's just the suspension and engine mounts being loaded slightly more.
My tyres are at about 4mm, Yokahoma C-Drive's.
Something characteristic of Mercedes suspension/steering of old was quite an impressive lock on the steering where the road wheel would actually lean right over on full lock, I haven't tried this on mine but if the Q30 does this it would explain that odd contact with the road surface.
I also notice the engine tone gets deeper/loaded on full lock but guessing that's just the suspension and engine mounts being loaded slightly more.