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

Model 290

with code B07 (AMG - ceramic brake system)

with code ME10 (Hybrid vehicle (plug-in, PHEV))

Shown on left side of vehicle

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	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 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
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove
1	Clean area around cap of brake fluid reservoir.	Assembly cleaner	*BR00.45-Z-1028-04A
2	Remove cap of brake fluid reservoir and suction off some brake fluid.	This prevents the brake fluid reservoir from overflowing when the brake pistons are pushed back.
3	Remove front wheels.		AR40.10-P-1102A
4	Release and disconnect electrical connector of the right front brake wear sensor (S10/2).	When removing brake linings (1) at front right.
5	Remove electrical wiring harness of right front brake wear sensor (S10/2) from brake caliper (6).	When removing brake linings (1) at front right.
6	Drive out bolts (5) using a suitable tool and remove.
7	Unscrew screw (2), replace with guide pin and tighten guide pin slightly.	Guide bolts	Fig 1
8	Unscrew screw (3), replace with guide pin and tighten guide pin slightly.	Guide bolts	Fig 1
9	Push brake caliper (6) with connected brake hose to the side onto guide pin.	Do not crush or kink brake hose, and do not subject it to tension. This will result in damage to the brake hose and can impair its function.
10	Remove brake linings (1) from brake caliper (6).
11	Unclip spreader spring (4) from brake caliper (6) and remove.
12	Pull right front brake wear sensor (S10/2) out of backing plate of brake lining (1).	When replacing the brake pads (1) or when replacing the right front brakepad wear sensor (S10/2).
		Pay attention to the installation location of the right front brakepad wear sensor (S10/2).
13	Press back brake pistons with pusher tool.	Secure remaining brake pistons using two wedges against slipping out.
		Resetting device	Fig 2
		Wedge	Fig 3
		If the brake pistons are sluggish, ↓ replace brake caliper (6).
			AR42.10-P-0070LSE
	Check
14	Check brake linings (1) for wear and condition.
		If there is a problem, ↓ replace brake linings (1) in sets.	AP42.10-P-4252I
15	Check brake disk for wear and condition.	If there is a problem, ↓ replace corresponding brake disk.	AR42.10-P-0120FRX
			AR42.10-P-0230FRK
16	Check brake caliper (6) for damage.	If there is a problem, ↓ Replace brake caliper (6).
			AR42.10-P-0070LSE
	Install
17	Clean contact surfaces of brake linings (1) at brake caliper (6) and at brake pistons.	Do not use sharp-edged or pointed objects. Otherwise, the brake caliper (6) and the dust boots at the brake pistons will be damaged.
		Assembly cleaner	*BR00.45-Z-1028-04A
18	Insert right front brake wear sensor (S10/2) at backing plate of brake lining (1).	When replacing the right front brake linings (1) or when replacing the right front brake wear sensor (S10/2).
19	Install spreader spring (4) in brake caliper (6).	Replace spreader spring (4).
20	Insert brake pads (1).	Only brake pads (1) approved by Mercedes-Benz may be installed, and only as complete sets.
21	Slide brake caliper (6) onto brake disk.
22	Install bolts (5).	Replace bolts (5).
23	Unscrew lower guide pin, replace with screw (3) and tighten screw (3) slightly.	replace screw (3).
		Guide bolts	Fig 1
24	Unscrew upper guide pin, replace with screw (2) and tighten screw (2) slightly.	Replace bolt (2).
		Guide bolts	Fig 1
25	Tighten screws (2, 3).	Bolt, brake caliper to steering knuckle	*BA42.10-P-1001-10BA
26	Attach electrical wiring harness of right front brake wear sensor (S10/2) to brake caliper (6).	When installing right front brake linings (1).
27	Connect electrical connector of right front brake wear sensor (S10/2).	When installing right front brake linings (1).
28	Install front wheels.		AR40.10-P-1102A
29	Operate brake pedal several times until the brake pads (1) make contact with the brake disks.	Firm resistance should be noticeable at the brake pedal.
	Check
30	Check brake fluid level in brake fluid reservoir, correct if necessary.
			AP42.10-P-4210B
31	Perform brake test on test stand.
			AP42.00-P-4290BA