Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, there are no major shortcuts but the quote sounds very high. It's about 30 hours labor to replace the cooler gasket. At $150 an hour that's only $4500. You don't have that much in parts other than gaskets and seals. I'd get a breakdown of what they are charging you. I'd also get another estimate from a Mercedes dealer or an independent Mercedes specialist.
Let me know if you have any questions.