Removing
1. Remove the rear brake disc.
2. Remove the back seat.
3. Remove the cable length equalizer shield under the rear seat.
4. Tension the automatic cable length equalizer (12). To do this, use a wrench with an Allen key to turn the crank (g) about 1/2 turn to the right and at the same time push it back in the longitudinal spline until the crank engages in the spring housing (A) in spring clamp (d), (e - equalizer lever, f - intermediate lever, 93 - safety pin, 94 - return spring.)
5. Rotate rear axle shaft flange (68) so that the threaded hole is above the spring (107).
6. clamping spring (107) press lightly with Mercedes-040 tool, rotate 90° (1/4 turn) and unhook. You can also make an auxiliary tool yourself: weld a T-handle on one side of a rod of the appropriate diameter, and cut a slot about 4 mm deep and about 2.5 mm wide on the other side.
7. Remove the other brake pad pressure springs in the same way.
8. Detach release spring (111) from the brake pads with a tool (041) or screwdrivers.
9. Disconnect both brake pads from each other (112) and remove through the flange of the rear axle shaft. Mark the mounting position of the adjuster. The adjusting wheel is directed forward.
10. Detach release spring (112) away from the brake pads and remove the adjuster (104) before (106).
11. Push out bushing (114) from a lock (109) and remove the expansion lock from the cable (86).
Installation
1. Lubricate all bearing and sliding surfaces of the expansion lock with a thin film of high temperature grease such as Liqui Moly LM-36, Molykote-Paste-U or G-Rapid.
2. Attach the brake cable (86) with a finger (114) on a lock (109). Then press the spacer lock in the direction of the protective ring (102).
3. Unscrew one of the other parts of the adjuster. Lubricate the threads of the pressure piece as well as the cylindrical part of the adjusting wheel with high temperature paste.
4. Screw in the pressure piece (104) into the adjusting wheel (105) and insert into the pressure sleeve (106). When doing so, fully screw in the pressure piece.
5. Install the adjusting device between both brake shoes so that the pressure piece (104) pointed in the direction of travel.
6. Connect the return spring to the brake pads (112). 7. Spread the brake pads, install on the rear axle shaft flange and insert into the spacer lock.
8. Insert the pressure spring with an auxiliary tool into the brake shoe, slightly squeezing, turn 90°and, as a result, insert into the protective ring. Finally, check the correct seating of the spring.
9. Insert the compression spring for the other brake pad.
10. Insert the retractable spring with a small eye into the front brake shoe. big eye (arrow) use a screwdriver to insert into another brake pad.
11. Install the rear brake disc.
12. Loosen the automatic cable length equalizer. To do this, lift the spring clip with a screwdriver, after which the length equalizer will be installed automatically.
13. Install the protective cover of the cable length equalizer and tighten with bolts.
14. Install the back seat.
15. Adjust the parking brake.