Remove/install rear-axle brake caliper - AR42.10-P-0080AA

MODEL 461 with disk brakes at the rear axle 

MODEL 463 (except 463.234/270/271) up to model year 2013 except code 979 (Special protection MB Guard) with disk brakes at the rear axle 

Fig 1: Rear-Axle Brake Caliper Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Rear-Axle Brake Caliper Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	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
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Remove/install
1	Detach complete wheel
			AP40.10-P-4050G
2	Remove brake hose (1) from brake caliper (2)	Brake hose to rear axle floating caliper	*BA42.10-P-1005-04B
		Torque wrench	Fig 5
		Box wrench bit	Figure
3	Seal exposed connections with plugs	To prevent the brake fluid reservoir from emptying.
		Record plug	Figure
4	Detach brake caliper (2) from brake caliper support (6)	Replace microencapsulated guide pins (3).
		Bolt, pilot bushing/guide pin to brake caliper support	*BA42.10-P-1002-17B
5	Remove contact sensor from brake wear indicator	If installed.
		Self-locking bolt, brake wear contact sensor to floating caliper	*BA42.10-P-1004-17B
6	Push back brake piston (4) with pusher tool and collect brake fluid in a suitable container	Resetting device	Fig 3
7	Clean brake caliper (2)	Brake caliper brush	Fig 4
	Check
8	Check brake caliper (2) for brake fluid escaping from the brake piston (4)	If complaint present ↓ Replace brake caliper (2)
9	Check dust cap (5) for damage	If complaint present ↓ Replace dust cap (5)
10	Install in the reverse order
11	Bleed brake system		AR42.10-P-0010GG
	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
12	Press brake pedal several times and check brake system for leaktightness		AR42.10-P-0100-01A
		Firm resistance should be noticeable at the brake pedal.
13	Check fluid level in the brake fluid reservoir, correct if necessary
			AP42.50-P-4210G

Fig 3: Identifying Resetting Device (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Brake Caliper Brush (000 589 26 68 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Torque Wrench (001 589 72 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Box Wrench Bit (000 589 75 03 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA