Remove/check/install front axle brake pads - AR42.10-P-1610EWB

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MODEL 207, 212 Non-split 1-piston floating caliper brake

MODIFICATION NOTES

17.11.14

Guide pin, brake caliper to brake caliper support

MODEL 212 (except 212.061/074/075/076/077/092/274/275/276/277/292)

BA42.10-P-1004-10J

Fig 1: Front Axle Brake Pads Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Front Axle Brake Pads Remove/Install Components (2 Of 2)

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 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 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
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01CW
	Remove/install
1	Clean area around cap on expansion reservoir for brake fluid	Assembly cleaner	*BR00.45-Z-1028-04A
2	Unscrew the cap on the brake fluid expansion reservoir and suction off some brake fluid	This prevents the expansion reservoir overflowing when the brake piston is pushed back.
3	Remove front wheels
		Model 207	AP40.10-P-4050CW
		Model 212	AP40.10-P-4050EW
4	Detach electrical connection from brake wear sensor at front right (S10/2x1)
5	Remove bolts (1)	Model 207 Non-split 1-piston floating caliper brake Model 212 (except 212.061/074/075/076/077/092/274/275/276/277/292) Non-split 1-piston floating caliper brakeGuide pin, brake caliper to brake caliper support	*BA42.10-P-1004-10J
6	Remove brake caliper (3) and secure free of tension to vehicle with lines still connected	Do not subject the brake hose and electrical line to tension and do not kink them. The brake hose and the electrical line can otherwise be damaged.
7	Remove brake linings (5)	Do not apply brake paste or lubricants to the brake linings (5) and brake caliper supports (2). Only complete sets of brake linings (5) approved by Mercedes-Benz may be installed.
8	Remove spring plates (6) from brake caliper support (2) When replacing the brake linings (5).
	Check
9	Check brake linings (5) for wear and that they are in good condition
			AP42.10-P-4253A
		In case of damage or excessive wear: ↓ Replace brake linings (5). Replace the brake linings (5) as a complete set only.
10	Check brake disk (7) for wear and that it is in good condition
			AP42.10-P-4256EW
		In case of damage or excessive wear: ↓ Replace the brake disk (7).
		Model 207 Non-split 1-piston floating caliper brake Model 212 except code B07 (Ceramic brake system) Non-split 1-piston floating caliper brake Replace brake disks (7) as a complete set only.	AR42.10-P-0220EWE
11	Check brake caliper (3) and dust boot (8) of brake piston for leaktightness and damage	If there are problems:
			AR42.10-P-0070EWB
12	Press back brake piston using pusher tool (01)	Resetting device If the brake piston is difficult to move: ↓ Replace brake caliper (3).	Figure
			AR42.10-P-0070EWB
13	Check boots (9) for damage	If damage is present: ↓ Replace the boots (9).
14	Check sliding bolts (11) for ease of movement	If there are problems: ↓ Replace the sliding bolts (11).
	Clean
15	Clean contact surfaces of brake linings (5) on brake caliper (3) and on brake caliper support (2)	Do not use sharp-edged or pointed objects to clean. The dust boot (8), brake caliper (3) or brake caliper support (2) can otherwise be damaged.
15		Assembly cleaner	*BR00.45-Z-1028-04A
16	Pull right front brake wear sensor (S10/2) out of pad backing plate of brake lining (5) When replacing the brake linings (5) or when replacing the front right brake wear sensor (S10/2).
17	Install in the reverse order
18	Depress brake pedal several times until brake linings (5) rest against brake disks (7)	Firm resistance should be noticeable at the brake pedal.
	Check
19	Check/correct brake fluid level in expansion reservoir
			AP42.10-P-4210EW
20	Carry out brake test on the test stand
			AP42.00-P-4290BA

FRONT AXLE BRAKE CALIPER

Number	Designation			Model 207	Model 212 (except 212.061/074/075/076/077/092/274/275/276/277/292)
BA42.10-P-1004-10J	Guide pin, brake caliper to brake caliper support	M8 X 28	Nm	34	34
		M8 X 70	Nm	29	29
		M10	Nm	-	-
		M8x42	Nm	55	-

Fig 3: 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