Call them back and ask the SA to explain it in detail. They have to disclose to you what will be performed on your car. Then compare & contrast., and you'll realize one is likely double-charging you! After all, there's a reason on why they're called stealerships!I have a 2003 E500 with 78,000 miles. I called 2 mb dealers in my area to see what service D would cost. I got $240 from one dealer and $460 from the other. Can anyone give me a definitive answer? Thanks!