Just bought a used E350 from this dealership recently. When I bought the car there were scratches on the front and rear bumpers. I addressed to the salesman and the manager. They assured me they would fix it once their paint guys came in. Also, 2 days after I bought the car, I noticed an obnoxious rattle from the rear speaker. I told the service man when I brought it in. 2 hours later he calls me and says "I don't hear anything." So I say, "OK I will come show you in the morning." I arrive in the morning and show him the rattle I am talking about." He then says "I don't think there is anything that we can do for that under warranty." I tell him " I just bought the car a week ago!" So he says he will have his service guy take a look at it again. Over the course of the next 5 hours I went back and fourth with this salesman about how it needed to be fixed, and him more or less refusing to fix it. 5 hours later he calls and tells me they replaced it. I get there to find the speaker sounds exactly the same and the scratches are still there and haven't even been touched. Thoroughly disappointed with their service and professionalism. There is no way that speaker was replaced, it sounds the exact same as before. What is the point of making promises and having a warranty, if they will not do anything when you have a problem.