Remove/check/install front axle brake pads - AR42.10-P-1600RKK

MODEL 217.377/378/379 with CODE B07 (Ceramic brake system)

MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)

MODEL 231.474/479 with CODE B07 (Ceramic brake system)

MODIFICATION NOTES

31.03.2014	Self-locking screw, brake caliper on steering knuckle	MODEL 222.177/178/179 with CODE B07	BA42.10-P-1001-10V
31.03.2014	Bolt, brake caliper to steering knuckle	MODEL 222.176/182/184/185/976/982/984/985 with CODE Z07, MODEL 222.177/178/179 with CODE B076	BA42.10-P-1001-10V

Shown on MODEL 222 - Right brake caliper

Fig 1: Front Axle Brake Pads Remove/Install Components - Shown On Model 222 (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Front Axle Brake Pads Remove/Install Components - Shown On Model 222 (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 self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01CW
	Remove/install
1	Remove cover above brake fluid reservoir
2	Unscrew cap of brake fluid reservoir and extract some brake fluid	This prevents the brake fluid reservoir overflowing when the brake piston is pushed back.
3	Remove front wheel-and-tire assemblies
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system) MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	AP40.10-P-4050HA
		MODEL 231.474/479 with CODE B07 (Ceramic brake system)	AP40.10-P-4050EW
	Check
4	Check brake linings (2) for wear and that they are in good condition
		MODEL 231.474/479 with CODE B07 (Ceramic brake system)	AP42.10-P-4252RK
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system)	AP42.10-P-4252C
		MODEL 222.177/178/179 with CODE B07 (Ceramic brake system) If the wear limit of the brake linings (2) is exceeded, the bar between the sealing groove and dust cap may be damaged. Otherwise this may result in a leakage in the brake system: ↓	AP42.10-P-4252HA
		Test brake system with pressure tester for leaks	AR42.10-P-0015CW
5	Check condition of brake disks (1)
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system)	AP42.10-P-4258CC
		MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	AP42.10-P-4258HC
		MODEL 231.474/479 with CODE B07 (Ceramic brake system) Replace brake disks (1) as a set only.	AP42.10-P-4258QQ
6	Detach electrical connection for front right brake wear sensor (S10/2x1) for front right brake wear sensor (S10/2)	When removing brake pads on right side
7	Press back brake piston using resetting device	Attach pusher tool to the elevations (A) of the brake linings (2). Secure remaining brake pistons to prevent them slipping out.
		Resetting device	Figure
		Wedge If brake pistons are sluggish: ↓ Replace brake caliper (3).	Figure
		MODEL 231.474/479 with CODE B07 (Ceramic brake system)	AR42.10-P-0070RK
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system) MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	AR42.10-P-0070LF
8	Remove bolts (4) and detach brake caliper support (5) together with brake caliper (3)	Do not unscrew bolts (9) completely. The brake caliper (3) and brake caliper support (5) must not be separated. Otherwise an optimum alignment of the brake caliper (3) to the brake disk (1) can no longer be guaranteed, which results in higher wear and an incorrect contact pattern. Replace screws/bolts (4).
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system) MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	*BA42.10-P-1001-10V
		MODEL 231.474/479 with CODE B07 (Ceramic brake system)	*BA42.10-P-1002-10U
9	Pad brake caliper (3) and attach to the vehicle free of tension	Do not kink or tension brake hose (6). Otherwise the brake hose (6) will be damaged. Do not damage paint of brake caliper (3).
10	Remove brake linings (2) from brake caliper (3)	Do not apply any brake paste or lubricants to brake pads (2) and brake calipers (3). Malfunctions may occur otherwise. Do not release or pull out the screw bolt (7), push brake linings (2) against force of retaining springs (8) off the screw bolts (7). Only sets of brake linings (2) approved by Mercedes-Benz may be installed.
	Check
11	Check brake caliper (3) for leaktightness and check dust boots	If damaged or leaking: ↓ Replace brake caliper (3).	AR42.10-P-0070RK
		MODEL 231.474/479 with CODE B07 (Ceramic brake system) MODEL 217.377/378/379 with CODE B07 (Ceramic brake system) MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	AR42.10-P-0070LF
12	Check retaining springs (8)	In the event of deformation or damage: ↓ Replace retaining springs (8).
	Clean
13	Clean contact surfaces of brake linings (2) on brake caliper (3)	Do not use sharp-edged or pointed objects. Otherwise the dust boots for the brake pistons will be damaged. Assembly cleaner	*BR00.45-Z-1028-04A
14	Pull right front brake wear sensor (S10/2) out of pad backing plate of brake lining (2)	Only when replacing the brake linings (2) or if the front right brake wear sensor (S10/2) is defective. Replace the defective right front brake wear sensor (S10/2).
15	Install in the reverse order
	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
16	Depress brake pedal several times until brake linings (2) lie against brake disks (1)	Firm resistance should be noticeable at the brake pedal.
	Check
17	Check fluid level in brake fluid reservoir
		MODEL 217.377/378/379 with CODE B07 (Ceramic brake system) MODEL 222.177/178/179 with CODE B07 (Ceramic brake system)	AP42.10-P-4210HA
		MODEL 231.474/479 with CODE B07 (Ceramic brake system)	AP42.10-P-4210V
18	Carry out brake test on the test stand		AP42.00-P-4290BA

FRONT AXLE BRAKE CALIPER

Number	Designation			MODEL 217.377/378/379/477/479 with CODE B07	MODEL 222.176/182/184/185/976/982/984/985 with CODE Z07, MODEL 222.177/178/179 with CODE B07
BA42.10-P-1001-10V	Bolt, brake caliper to steering knuckle	Stage 1	Nm	150	150
BA42.10-P-1001-10V	Bolt, brake caliper to steering knuckle	Stage 2	∠°	45	45

FRONT AXLE BRAKE CALIPER

Number	Designation			MODEL 231.474 with CODE B07	MODEL 231.479 with CODE B07
BA42.10-P-1002-10U	Bolt, brake caliper support to steering knuckle	Stage 1	Nm	180	180
BA42.10-P-1002-10U	Bolt, brake caliper support to steering knuckle	Stage 2	∠°	-	-

Fig 3: Identifying Wedge (601 589 07 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Resetting Device (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	Adolf Wurth GmbH & Co. KG