Worst mechanics I've ever dealt with. They connected the main earth for the vehicle to live power source! On my BMW M3 which has cause all sorts of problems to the point the car is not going. What's even worse is they refuse to fix the problem, which was done on their behalf. Currently filing documentation from BMW and real mechanic to have the matter heard in court! so i can be compensated for the damage Hills Eurohaus has caused. Wouldn't recommend this place to anyone...