Remove/Check/Install Rear Axle Brake Pads - AR42.10-P-1710RG

Model 190 

except code B07 (AMG - ceramic brake system) 

Model 190 

with code B07 (AMG - ceramic brake system) 

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.  Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
	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 injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
	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	Notes on handling, transport and storage of composite brake disks		AH42.10-P-9406-12LF
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on working in engine compartment		AH60.00-P-0042-01RG
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Brake fluid notes		AH42.50-P-0001-01A
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01RG
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Check
1	Move brake pads (5) on rear axle into assembly position.		AR42.10-P-1700-02W
		Do not depress the service brake during "Move to assembly position". Otherwise, the spindle in the brake caliper (1) can be damaged.
2	Open hood.		AR88.40-P-1000RG
3	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
4	Clean area around cap on brake fluid expansion reservoir.	Before opening the brake system, the area surrounding the connecting point must be clean. Even the smallest dirt particles, introduced into the hydraulic components, can lead to malfunctions and a total failure of the brake system.
		Assembly cleaner	*BR00.45-Z-1028-04A
5	Remove cap from brake fluid expansion reservoir and extract some brake fluid.	In order to prevent the brake fluid expansion reservoir overflowing when pressing back the brake pistons.
6	Remove rear wheel and tire assemblies.		AR40.10-P-1100RQ
7	Remove air vent from holder on left electric parking brake actuator motor (M76/1) or right electric parking brake actuator motor (M76/2).	Model 190 with code B07 (AMG - ceramic brake system) with code M032 (Black Series version)
8	Release and disconnect electrical connector at left electric parking brake actuator motor (M76/1) or right electric parking brake actuator motor (M76/2).
9	Release and disconnect electrical connector for left rear brake wear sensor (S10/3x1) from left rear brake wear sensor (S10/3).	When removing brake pads (5) on left side of vehicle.
10	Remove screw (3) from lower guide pin (4).	Counterhold lower guide pin (4) while doing so.
		Guide pin to brake caliper support	*BA42.10-P-1004-12T
11	Swivel brake caliper (1) upwards.	Route rear left brake wear sensor (S10/3) through the opening in the brake caliper (1).
12	Remove brake pad (5) from brake caliper support (2).	Only sets of brake pads (5) approved by Daimler AG may be installed. Do not apply brake paste or lubricants to the brake pads (5) and brake calipers (1)!
13	Remove rear left brake wear sensor (S10/3) from brake pad (5).	When replacing brake pads (5) on left side of vehicle.
		Replace rear left brake pad wear sensor (S10/3).
14	Remove spring steel sheets (7) from brake caliper support (2).
	Check
15	Check brake pads (5) for wear and condition.
		If there is a problem, ↓ Replace brake pads (5) in sets.	AP42.10-P-4252A
16	Check brake disk for wear and condition.	Model 190	AR42.10-P-0120RG
		with code B07 (AMG - ceramic brake system)
		Model 190 except code B07 (AMG - ceramic brake system)	AP42.10-P-4258A
		If there is a problem, ↓ Replace brake disks in sets.
17	Check brake caliper (1) and dust boots of brake pistons for leak tightness and damage.	If any leaks or damage is found, ↓ replace brake caliper (1).
18	Check boots (6) and guide pins (4) for damage and ease of movement.	If damage is found, ↓ Replace brake caliper support (2).
	Clean
19	Clean contact surfaces of brake pads (5) on brake caliper (1) and on brake caliper support (2).	Do not use sharp-edged or pointed objects. Otherwise, the dust boots may be damaged.
		Assembly cleaner	*BR00.45-Z-1028-04A
	Install
20	Press back brake pistons with pusher tool.	Resetting device	Fig 1
		If the brake piston is sluggish, ↓ replace brake caliper (1).
21	Install in the reverse order.
	Concluding tasks
22	Operate brake pedal several times until brake pads (5) make contact with brake disks.	Firm resistance should be noticeable at the brake pedal.
23	Check fluid level in brake fluid expansion reservoir and correct, if necessary.
			AP42.10-P-4210A
	Risk of death  caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand	Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY OFF switch to shut down test stand.	AS42.00-Z-0001-01A
24	Perform brake test on brake test stand.
			AP42.00-P-4290BA

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

Courtesy of MERCEDES-BENZ USA