You have to remove the driver's side under dash panel and get on your back to see it. It is located on the top portion of the brake pedal lever.

You have to push a tab and twist to take it out. You will need to pull the lever out on the new one to do the self adjustment.

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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS