Remove/Check/Install Front Axle Brake Pads - AR42.10-P-1610LWC

Model 205

with code B07 (AMG - ceramic brake system)

except code B06 (grey-painted brake callipers)

except code U70 (red-painted brake callipers)

6-piston fixed-caliper brake

Model 213

with code B07 (AMG - ceramic brake system)

except code B06 (grey-painted brake callipers)

except code U70 (red-painted brake callipers)

6-piston fixed-caliper brake

Model 253

with code B07 (AMG - ceramic brake system)

except code B06 (AMG high-performance braking system)

except code U70 (AMG high-performance composite braking system)

6-piston fixed-caliper brake

MODIFICATION NOTES

20.09.2019

Checking brake disks for wear using Carboteq measurement method added.

Operation step 14.2

AR42.10-P-0264-01RG

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
	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
	Brake fluid notes		AH42.50-P-0001-01A
	Remove/install
1	Open service flap above expansion reservoir for brake fluid.
2	Clean area around cap on brake fluid expansion reservoir.	Assembly cleaner	*BR00.45-Z-1028-04A
3	Unscrew cap on brake fluid expansion reservoir and suction off some brake fluid.	This prevents the expansion reservoir overflowing when the brake piston is pushed back.
4	Remove front wheels.		AR40.10-P-1102A
5	Expose electric line of front right brakepad wear sensor and disconnect electrical connector.	Pay attention to the routing of the electric line of the right front brakepad wear sensor.
6	Press back brake pistons slightly using pusher tool.	Position pusher tool at the elevations (arrows) of the brakepads (2). Resetting device	Fig 1
7	Remove screws (5). Notes on threaded connections fastened using a tightening angle-based tightening process	: Replace screw/bolts (5).	AH00.00-P-0020-01A
		Model 205 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake Model 253 with code B07 (AMG - ceramic brake system) except code B06 (AMG high-performance braking system) except code U70 (AMG high-performance composite braking system) Bolt, brake caliper/brake caliper support to steering knuckle	*BA42.10-P-1001-10W
		Model 213 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake Bolt, brake caliper/brake caliper support to steering knuckle	BA42.10-P-1001-10X
8	Unhook brake hose (6) from holder at steering knuckle and suspension strut.
9	Remove brake caliper (1) from wheel carrier (5) and secure it free of tension to vehicle with lines connected.	Do not subject brake hose (6) and electric line to tension and do not kink them. The brake hose (6) and the electric line may otherwise be damaged.
10	Press brakepads (2) against force of retaining springs (3) off screw bolts (4) and remove from brake caliper (1).	Do not unfasten or remove screw bolts (4). : Do not apply brake paste or lubricants to brakepads (2) or brake calipers (1) Only install brakepads (2) approved by Mercedes-Benz as a set.
	Check
11	Check condition of retaining springs (3) and check for damage.	In the event of a problem, ↓ Replace retaining springs (3).
12	Check brakepads (2) for wear and check their condition.
		Model 253 with code B07 (AMG - ceramic brake system) except code B06 (AMG high-performance braking system) except code U70 (AMG high-performance composite braking system) 6-piston fixed-caliper brake	AP42.10-P-4252D
		Model 205 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake	AP42.10-P-4252CAA
		Model 213 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake If there is damage or excessive wear. ↓ Replace brakepads (2). Replace brakepads (2) as a set only.	AP42.10-P-4252E
13	Check brake disks on front axle for damage. Notes on evaluating brake disks	If there is damage. ↓ Replace brake disks and brakepads (2) in sets.	AH42.10-P-9406-07RQ
			AR42.10-P-0220EWE
14.1	Check brake disks for wear.	Check brake disks for wear using wear indicators.
		Parts ordering notes: Mercedes Part number: A 197 001 77 99 Designation: Test film Quantity: as required In the event of a problem, ↓ Replace brake disks and brakepads (2) in sets.	AP42.10-P-4258-02RQ
			AR42.10-P-0220EWE
	Risk of injury to skin and eyes from laser beams	Never look directly into the laser beam. Do not attempt to suppress natural reflex of closing the eyelids. Avoid direct skin contact with the laser beam. If damage to the eye is suspected, consult an eye specialist immediately.	AS30.30-Z-0001-01A
14.2	Check brake disks for wear.	Checking brake disks for wear using Carboteq measurement method. In the event of a problem, ↓ Replace brake disks and brakepads (2) in sets.	AR42.10-P-0264-01RG
			AR42.10-P-0220EWE
15	Check brake caliper (1) and dust boots of brake piston for leak tightness and damage.	In the event of a problem, ↓ Replace brake caliper (1).
			AR42.10-P-0070LWC
16	Press back brake pistons with pusher tool.	Attach pusher tool onto brake piston. Secure remaining brake pistons using two wedges against slipping out.
		Wedge	Fig 2
		Resetting device	Fig 1
		If the brake pistons can only be moved sluggishly, ↓ Replace brake caliper (1).	AR42.10-P-0070LWC
	Clean
17	Clean contact surfaces of brakepads (2) or brake caliper (1) and on brake pistons.	Do not use sharp-edged or pointed objects. Otherwise, the brake caliper (1) or the dust boots of the brake pistons may be damaged. Assembly cleaner	*BR00.45-Z-1028-04A
18	Pull front right brakepad wear sensor out of backing plate of brakepad (2).	When replacing the brakepads (2) or replacing the front right brakepad wear sensor. Pay attention to the installation location of the right front brakepad wear sensor.
19	Install in the reverse order.
20	Operate brake pedal several times until the brakepads (2) make contact with the brake disks.	Firm resistance should be noticeable at the brake pedal.
	Check
21	Check/correct brake fluid level in expansion reservoir.
		Model 205 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake	AP42.10-P-4210CAA
		Model 213 with code B07 (AMG - ceramic brake system) except code B06 (grey-painted brake callipers) except code U70 (red-painted brake callipers) 6-piston fixed-caliper brake Model 253 with code B07 (AMG - ceramic brake system) except code B06 (AMG high-performance braking system) except code U70 (AMG high-performance composite braking system) 6-piston fixed-caliper brake	AP42.10-P-4210B
22	Perform brake test on test stand.
			AP42.00-P-4290BA