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

Model 222 with code Z07 (B7 armoring on special protection version)

Shown on right side of vehicle

Courtesy of MERCEDES-BENZ USA

Shown on right side of vehicle

Courtesy of MERCEDES-BENZ USA

	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 threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
Notice	Brake fluid notes		AH42.50-P-0001-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Notes on installation position of brake linings		AH42.10-P-1610-01A
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01CW
	Remove/install
1	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
2	Remove cover above brake fluid expansion reservoir.
3	Clean area around cap on brake fluid expansion reservoir.	Assembly cleaner	*BR00.45-Z-1028-04A
4	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.
5	Remove front wheel and tire assemblies.		AR40.10-P-1102A
6	Release and disconnect electrical connector of right front brake wear sensor (S10/2).	If the brakepads (6) on the right side of the vehicle are removed.
7	Remove screw (2) and remove electrical connector coupling (1) from brake caliper (3).	If the brakepads (6) on the right side of the vehicle are removed.
		Model 222.176/182/184/185/976/982/984/985 with code Z07 (B7 armoring on special protection version) Bolt, brake wear sensor to brake caliper	*BA42.10-P-1004-10V
8	Hammer out retaining pins (4) with punch.	Drive in retaining pins (4) up to the end stop. Make sure that the retaining spring (7) is seated correctly.
9	Remove screws (5), remove brake caliper (3) from wheel carrier and secure brake caliper (3) with suitable means against falling down.	Model 222.176/182/184/185/976/982/984/985 with code Z07 (B7 armoring on special protection version) Bolt, brake caliper to steering knuckle	*BA42.10-P-1001-10V
10	Remove brakepads (6) forwards from brake caliper (3).	Do not apply brake paste or lubricants to the brakepads (6) and brake calipers (3). Otherwise malfunctions will occur. Install only sets of brakepads (6) approved by Mercedes-Benz. Make sure that the brakepads (6) are installed at the correct position. Press out seized brakepads (6) using a lever.
		Lever	Fig 1
11	Remove retaining spring (7) from brake caliper (3)	Make sure that the retaining spring (7) is seated correctly.
	Check
12	Check brakepads (6).
			AP42.10-P-4252HA
		If wear or damage is detected, ↓ Replace brake pads (6).	AR42.10-P-0220LF
13	Check brake disks (8).
		Model 222 with code Z07 (B7 armoring on special protection version) except code B07 (AMG - ceramic brake system)	AP42.10-P-4258HA
		If wear or damage is detected, ↓ replace brake disks (8).
14	Check brake caliper (3) and dust boots of brake pistons.	If a leakage or any damage is detected, ↓ Replace brake caliper (3).	AR42.10-P-0070LF
15	Press back brake piston using pusher tool.	Secure remaining brake pistons to prevent them slipping out.
		Wedge	Fig 3
		Wedge Resetting device If one or several brake pistons are sluggish. ↓	Fig 2
		Replace brake caliper (3).	AR42.10-P-0070LF
	Clean
16	Clean contact surfaces of brakepads (6) on brake caliper (3).	Do not use sharp-edged or pointed objects. Otherwise, damage to the dust boots will occur.
		Assembly cleaner	*BR00.45-Z-1028-04A
17	Pull right front brake wear sensor (S10/2) out of backing plate of brakepad (6).	If the brakepads (6) are replaced or the right front brake wear sensor (S10/2) is replaced.
18	Install in the reverse order.
	Initial startup
	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
19	Depress brake pedal several times until the brakepads (6) make contact with brake disks (8).	Firm resistance should be noticeable at the brake pedal.
	Check
20	Check fluid level in expansion reservoir for brake fluid.
			AP42.10-P-4210HA
21	Perform brake test on test stand.
			AP42.00-P-4290BA