Remove/Install Front Axle Brake Caliper - AR42.10-P-0070MEX

Model 167 

with code B06 (Silver brake calipers) 

Model 167 

with code B07 (AMG - ceramic brake system) 

Model 167 

with code U29 (AMG high-performance braking system) 

Model 167 

with code U70 (red-painted brake callipers) 

Shown on right side of vehicle 

Fig 1: Front Axle Brake Caliper Components Location - Model 167 With Code B06, B07, U29, U70 (Shown On Right Side)

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	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
Notice	Notes on handling, transport and storage of composite brake disks		AH42.10-P-9406-12LF
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
Notice	Brake fluid notes		AH42.50-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Clean area around cap of brake fluid reservoir.	Assembly cleaner	*BR00.45-Z-1028-04A
2	Remove cap of brake fluid reservoir and extract some brake fluid.	This prevents the brake fluid reservoir from overflowing when the brake pistons are pushed back.
3	Remove left or right front wheel and tire assembly.		AR40.10-P-1102ME
4	Release and disconnect front right brake wear sensor (S10/2) from coupling housing (3).	Only when removing the brake caliper (1) on the right side of the vehicle.
5	Remove screw (2) at coupling housing (3).	Only when removing the brake caliper (1) on the right side of the vehicle.
		Bolt, brake pad contact sensor to brake caliper	*BA42.10-P-1004-10L
6	Remove coupling housing (3) together with electrical line and place to one side.	Only when removing the brake caliper (1) on the right side of the vehicle.
7	Unscrew union nut of brake line (7) on brake hose (6) and release brake hose (6).	Seal connections immediately. Otherwise damage can be caused by escaping brake fluid. Collect escaping brake fluid. The brake fluid reservoir must not run completely empty.
		Brake line to brake hose	*BA42.10-P-1002-04J
		Box wrench bit	Fig 3
		Record plug	Fig 2
8	Remove bolts of brake pads.	Only when replacing or removing the brake caliper (1) or brake pads.
			AR42.10-P-1610MEX
9	Remove bolts (5).
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
		Do not  loosen screws (4) or remove from brake caliper support (8). Otherwise, the factory-set alignment of the brake caliper (1) to the brake caliper support (8), and therefore to the brake disk in its installed condition, is no longer correct.
		Self-locking bolt, brake caliper support to steering knuckle	*BA42.10-P-1003-10L
10	Remove brake caliper (1) together with brake pads and brake caliper support (8).
11	Remove brake pads.	Only when replacing the brake caliper (1) or brake pads.
			AR42.10-P-1610MEX
	Check
12	Check brake pads for wear and condition.
			AP42.10-P-4252J
		If there is a problem, ↓ replace brake linings.
			AR42.10-P-1610MEX
		Always replace all the brake pads on the axle at the same time.
13.1	Check condition of brake disk and gauge degree of wear.	Model 167 with code B07 (AMG - ceramic brake system)
		If there is a problem, ↓ replace corresponding brake disk.	AR42.10-P-0270RG
			AR42.10-P-0230MEA
		Only brake disks approved by Mercedes-Benz may be installed. Always replace all the brake disks on the axle at the same time.
13.2	Check condition of brake disk and gauge degree of wear.	Model 167 with code B06 (Silver brake calipers) Model 167 with code U29 (AMG high-performance braking system) Model 167 with code U70 (red-painted brake callipers)
			AP42.10-P-4256EW
		If there is a problem, ↓ Replace brake disks.
			AR42.10-P-0230MEA
		Only brake disks approved by Mercedes-Benz may be installed. Always replace all the brake disks on the axle at the same time.
14	Check brake caliper (1) and die dust boot on the brake pistons for leak tightness and damage.	If there is a problem, ↓ Replace brake caliper (1).
15	Check brake hose (6) for leakage and damage.	If there is a problem, ↓ Replace brake hose (6).
			AR42.10-P-0026MEX
16	Install in the reverse order.
	Concluding tasks
17	Bleed brake system.		AR42.10-P-0010ME
18	Perform brake test on test stand.
			AP42.00-P-4290BA

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Box Wrench Bit (001 589 00 03 00)

Courtesy of MERCEDES-BENZ USA