Removal (GLC & 626)
Raise and support the rear of the vehicle. Release parking brake. Remove the wheel and grease cap. Clear the staked nut's position, and remove the nut and washer. Remove brake drum.
NOTE:
If it is difficult to remove drum, widen the shoe-to-drum clearance by removing the lever stop. If necessary, disconnect the parking brake cable from lever, and move lever to touch backing plate.