Thank you for your reply man, i will definitely buy from main dealer only . I would pay the extra for peace of mind . Who was your 3rd party warranty with ?Hello & Welcome, I have had the GLS 350 for 5 months now, Wow great car, I have had no issues, I came from Land Rover Ownership and the GLS is worlds apart, Good Plan going with an MB Dealer and a warranty. I do have a 3rd Party Warranty but haven't had to use it