Good Mercedes mechanic in KNOXVILLE, TN. Check with Jarek, I know a freind who's mother always uses Jarek. In fact knowing a good Mercedes mechanic in Knoxville other than using the Dealer is what helped me make the decision to buy a Mercedes. So far he has replaced my radiator and my brake rotors. His number is 690-5421 and all he works on is Mercedes Benz. However, don't call him today he is working on my check engine light which came on last Friday.