Mercedes has 13,077 represented vehicles in this snapshot, giving it a 0.03% share of the active UK pool tracked by AutoRank. For the last 5 years, AutoRank has 39,971 MOT tests for the make and a pass rate of 76.7%, with a reliability score of 59. Diesel is the largest fuel group at 75.4%, followed by petrol at 14.2%. The list of common models is led by Motorhome and Ml 250. If you are choosing a Mercedes, use the model list as your starting point. Motorhome and Ml 250 have the clearest ownership picture here, then the exact car history still matters.