Remove/install brake pad on floating brake caliper - AR42.10-P-0160GG

MODEL 461 up to model year 2014 with disk brake at the rear axle 

MODEL 463 (except 463.270/271) up to model year 2013 without CODE 979 (Special protection version) with disk brake at the rear axle 

Fig 1: Floating Brake Caliper Brake Pad Remove/Install Components

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
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
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	Remove wheel-and-tire assembly
			AP40.10-P-4050G
	Check
3	Check lining thickness of brake linings (4) and check condition of brake disks
			AP42.10-P-4251G
		If the brake linings (4) are worn beyond the permissible wear limit: ↓ Replace brake linings (4). If the brake disks are worn beyond the permissible wear limit: Replace brake disks.
4	Remove retaining spring (1) on floating brake caliper (2)	If installed
5	Remove screws/bolts or guide pin (3)		*BA42.10-P-1002-17B
		MODEL 461 up to model year 2014 with disk brake at the rear axle MODEL 463 (except 463.270/271) up to model year 2013 without CODE 979 (Special protection version) with disk brake at the rear axle
6	Remove floating brake caliper (2)
7	To relieve load on brake hose, secure floating brake caliper (2) to vehicle free of tension	Do not detach brake hose, and do not tension or kink. Otherwise the brake hose will be damaged.
8	Remove brake linings (4)	Dispose of the brake linings (4) as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste. Only complete sets of brake linings (4) approved by Mercedes-Benz may be installed.
9	Press piston back in floating brake caliper (2)	Resetting device	Figure
	Clean
10	Clean floating brake caliper (2) using brake caliper brush	Do not damage dust boots. This can otherwise lead to dust and contamination, which could prevent correct operation.
		Brake caliper brush	Figure
11	Install in the reverse order
	Check
	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.	AR42.10-P-0100-01A
12	Press brake pedal several times and check brake system leaktightness		AS42.50-Z-0002-01A
		Firm resistance should be noticeable at the brake pedal.
13	Check fluid level in brake fluid reservoir, and correct if necessary
	Hydraulic brake system - check fluid level, correct if necessary		AP42.50-P-4210G

Fig 2: Identifying Resetting Device (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Brake Caliper Brush (000 589 26 68 00)

Courtesy of MERCEDES-BENZ USA