Removing/installing brake disk, brake caliper and pads of rear wheel brake - AR42.10-P-0250CMG

MODEL 204.077/277/377 

MODEL 212.074/075/076/077/092/274/275/276/277/292 

MODEL 218.374/375/376/392/974/975/976/992 

Fig 1: Identifying Brake Disk, Brake Caliper And Pads Of Rear Wheel Brake Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Brake Disk, Brake Caliper And Pads Of Rear Wheel Brake Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

Shown on rear wheel brake with code (B07) Ceramic brake system 

Fig 3: Identifying Rear Wheel Brake With Code (B07) Ceramic Brake System

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
	Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Unscrew the cap on the brake fluid expansion reservoir and suction off some brake fluid	In order to prevent the expansion reservoir overflowing when pressing back the brake pistons.
2	Detach rear complete wheels
		MODEL 204	AP40.10-P-4050CW
		MODEL 212, 218 Turn if necessary.	AP40.10-P-4050EW
	Check
3	Check condition of brake disks (61)
		MODEL 204	AP42.10-P-4258CW
		MODEL 212, 218 except CODE B07 (Ceramic high-performance compound brake system)	AP42.10-P-4258EW
		MODEL 212, 218 with CODE B07 (AMG ceramic high-performance compound brake system) Replace the brake disks (61) as a complete set only.	AP42.10-P-4258QQ
4	Check brake lining thickness
			AP42.10-P-4253A
		Make sure that the brake linings (43) are not worn beyond the wear limit. Otherwise the bar between the sealing groove and the dust cap may be damaged. Replace brake linings (43) as a complete set only. ↓ Check brake system for leaks using pressure tester:
		MODEL 204	AR42.10-P-0015CW
		MODEL 212, 218	AR42.10-P-0015EW
	Only perform operation steps 5 to 11 when removing/installing the brake linings (43)
5	Disconnect electrical connector of right rear brake wear sensor (S10/4x1)
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01CW
		Only fitted on the right-hand side.
6	Drive out retaining pins (41) using punch and remove retaining spring (31d)	Hammer in retaining pins (41) as far as the end stop. Ensure that retaining spring (31d) is correctly seated. Replace retaining pins (41) if necessary.
7	Pull brake linings (43) out of brake caliper (31)	Do not apply brake pastes or lubricants to brake linings (43) and brake calipers (31)! Only sets of brake linings approved by Mercedes-Benz (43) may be installed. Dispose of brake pads (43) as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste.
8	Press back brake piston using resetting device	Secure remaining brake pistons to prevent them slipping out. If the brake pistons are sluggish replace brake caliper (31).
		Resetting device	Figure
		Wedge	Figure
	Check
9	Check brake caliper (31) for leaks and dust boot for damage	MODEL 204	AR42.10-P-0015CW
		MODEL 212, 218 If necessary replace dust boot or brake caliper (31).	AR42.10-P-0015EW
	Cleaning
10	Clean contact surfaces of brake linings (43) on brake caliper (31)	Do not use sharp-edged or pointed tools to clean. Otherwise damage may occur.
		Assembly cleaner	*BR00.45-Z-1028-04A
11	Pull brake wear sensor (S10/4) out of pad backing plate of brake lining (43)	Replace the defective brake wear sensor (S10/4). Only fitted on the right-hand side.
	Only carry out steps 12 to 16 when removing/installing the brake caliper (31)
12	Detach brake hose (51) from brake caliper (31)	MODEL 204	AR42.10-P-0013CW
		MODEL 212, 218 Seal connections immediately. Damage can otherwise be caused by escaping brake fluid.	AR42.10-P-0013EW
		Record plug	Figure
13	Remove bolt (31e) for electrical connector (S10/4x1)	Replace bolt (31e). Only fitted on the right-hand side.
		Screw/bolt, brake wear sensor to brake caliper	*BA42.10-P-1003-12J
14	Remove bolts (35) from wheel carrier and remove brake caliper (31)	Install new bolts (35).
		Screw/bolt, brake caliper to hub/rotor assembly	*BA42.10-P-1001-12J
15	Bleed brake system	MODEL 204	AR42.10-P-0010CW
		MODEL 212, 218	AR42.10-P-0010EW
16	Check brake system for leaks		AR42.10-P-0100-01V
	Only perform operation steps 17 to 23 when removing/installing the brake disks (61)
17	Release parking brake
18	Turn back brake adjuster for parking brake	MODEL 204	AR42.20-P-0540CW
		MODEL 212, 218 Make sure that the brake adjuster for the parking brake is turned back. The brake shoes will otherwise be damaged. Adjust parking brake.	AR42.20-P-0540EW
19	Remove bolts (35) from wheel carrier and remove brake caliper (31)	Do not detach brake hose (51), instead attach brake caliper (31) to vehicle so that it is free of tension. Do not kink the brake hose (51) or subject it to tensile loads. Otherwise the brake hose (51) and/or the paint on the brake caliper (31) will be damaged. Install new bolts (35).
20	Remove locking bolts (64) and detach brake disks (61)	Install new locking bolts (64). Observe the marking on the installation side (M)!
		Safety screw, rear axle brake disk to wheel flange	*BA42.10-P-1001-06H
	Clean
21	Clean contact surfaces and snug fits of brake disks (61)
22	Grease snug fits of brake disks (61) lightly	Paste, hot lubrication 1 kg, DBL 6879.20	*BR00.45-Z-1005-06A
	Check
23	Check condition of brake shoes of parking brake	If necessary replace brake shoes of parking brake ↓ Remove/install the brake shoes of the parking brake:
		MODEL 204	AR42.20-P-0530CW
		MODEL 212, 218	AR42.20-P-0530EW
24	Install in the reverse order
	Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.	AS42.50-Z-0002-01A
25	Depress brake pedal several times until brake linings (43) lie against brake disks (61)	Firm resistance should be noticeable at the brake pedal.
	Check
26	Check fluid level in brake fluid reservoir, and correct if necessary
			AP42.10-P-4210EW
27	Carry out brake test on the test stand
			AP42.00-P-4290BA

Fig 4: Identifying Wedge (601 589 07 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Resetting Device (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA