Remove/Install Rear-Axle Brake Caliper - AR42.10-P-0080RG

Model 190 

except code B07 (AMG - ceramic brake system) 

Shown on left side of vehicle 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	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
	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
	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
Notice	Brake fluid notes		AH42.50-P-0001-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on working in engine compartment		AH60.00-P-0042-01RG
	Remove/install
1	Open hood.		AR88.40-P-1000RG
2	Unscrew cap of brake fluid reservoir and suction off some brake fluid.	This prevents the brake fluid reservoir overflowing when the brake piston is pushed back.
3	Remove rear wheel and tire assemblies.		AR40.10-P-1100RQ
4	Disconnect electrical connector for left rear brake lining wear sensor (S10/3x1) from left rear brake lining wear sensor (S10/3).	When removing brake pads (5) on left side of vehicle.
5	Remove screw (2) and remove electrical connector for left rear brake lining wear sensor (S10/3x1) from brake caliper (1).	Only necessary on left side of vehicle.
		Bolt, brake wear indicator to brake caliper	*BA42.10-P-1002-12T
6	Remove left electric parking brake actuator motor (M76/1) or right electric parking brake actuator motor (M76/2).		AR42.20-P-0600RG
7	Unscrew screws (3) at lower and upper guide pin (4).	Counterhold lower and upper guide pin (4) while doing so.
		Guide pin to brake caliper support	*BA42.10-P-1004-12T
8	Remove brake caliper (1).
9	Press back brake piston using pusher tool.	Resetting device	Fig 1
10	Remove brake hose (7) at brake caliper (1).		AR42.10-P-0013RG
	Checking, measuring
11	Check condition of brake linings (5) and measure degree of wear.	If necessary, replace brake linings (5).
			AP42.10-P-4252A
12	Check condition of brake disk and gauge degree of wear.	If necessary, replace brake disk.
		Model 190 except code B07 (AMG - ceramic brake system)	AP42.10-P-4258A
13	Check boots (6) and guide pins (4) for damage and ease of movement.	If there is a problem, ↓ Replace brake caliper support (8).
14	Check brake hose (7) and brake line piece (99) for damage.	The brake line piece (99) of the brake hose (7) must not be bent. A bent brake line piece (99) can lead to functional impairment of the brake system.
		If there is a problem, ↓ replace brake hose (7).	AR42.10-P-0013RG
	Clean
15	Clean contact surfaces of brake linings (5) at brake caliper (1) and at brake caliper support (8).	Do not use sharp-edged or pointed objects. Otherwise, the dust boots may be damaged.
16	Install in the reverse order.
	Check
17	Bleed brake system.		AR42.10-P-0010RG
18	Check brake system for leaks.		AR42.10-P-0100-01V
19	Perform brake test on test stand.
			AP42.00-P-4290BA

Fig 1: Identifying Resetting Device (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA