Actually, I simply lucked onto Auto Excel by searching on line for Mercedes mechanics. And boy did I get lucky! Auto Excel offers a 58 point inspection with each repair and provides an incredible warranty with each one as well. My first issue turned out to be rather expensive and for being a first time customer, I was given a 10% discount on the cost of the repair! The staff & mechanics are extremely nice, knowledgeable, accommodating and honest. And the mechanics are certified and "know their stuff". I do not have any qualms about being taken advantage of. In fact, they go out of their way to explain the "ins" and "outs" of of your particular issue and you never feel any pressure to make an instant decision on the repair. Check it out for yourself. You will be glad you did!