If you do decide to do this yourself, be more than careful!! If this is done incorrectly, it can cause the engine to run away from you and hit the rev limiter. I have seen this happen and it took all I had to move the tech working on the car and get the engine stopped!!!!
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM