Mine were Continental Contact Sport 2 but I found that they had worn to over 50% in the 8000 miles that the dealer had the car (ex demo) and then they kerbed it whilst in for some work & damaged a front tyre. I replaced them with Bridgestone Potenza which was one of the tyres suggested in Germany for the B class.
The wear rate seems much better on these tyres although they may be a tad noiser due to the (imho) better tread pattern which looks far more grippy.