You do not want to do this at home. It is a pain in the a-- even for a good Mercedes tech. You have to take out the fan and the radiator to start and the bracket is hard to get to.

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM