Hello all, car: Corsa B 1.5 TD, 2000, driving to 70-80% only motorway, rather defensive driving mode, on average with 100 km/h on the road. Over the winter I drive a maximum of 2000 km. Tyre size: 165/70 R13 Now I will soon buy two new winter tires (Fulda Kristall Montero 3). Both come to the rear axle, as you should hear again and again the better tires come! So on the front axle I still have a mixed tire at the moment (Rheinland) that means front on the left a winter tire Bridgestone Blizzak LM 18 from 2004 with 4-5 mm profile depth and on the right a summer tire Firestone. I know that this is a no-go in winter! So since I have an additional winter tire: Maloya Cresta 220 (from 2007) with a good 7 mm profile I would like to attach this front right. The question is now whether it has a bad effect for the vehicle if you have a winter tire with 4-5 mm profile on the front axle on the left and a rich 7 mm in the front right? And yes I know that apart from the profile depth difference it is not very great to have different tyre profiles on one axle! If it is bad for the car due to differential or so I would buy a third Fulda winter tire and then would have less profile depth difference at the front because the Maloya with 7 mm has almost new tyre profile depth. PS: if someone has new quality tires over, I might be interested in it. 165/70 R13 no longer exists.