Remove/install brake pad on floating brake caliper - AR42.10-P-0160SX

MODEL 216, 221 

Shows model 221.071 

Fig 1: Identifying Floating Brake Caliper Brake Pad Components - Model 221.071

Courtesy of MERCEDES-BENZ USA

Shown on model 221.177, front axle 

Fig 2: Identifying Floating Brake Caliper Brake Pad Components - Model 221.177, Front Axle

Courtesy of MERCEDES-BENZ USA

Shown on model 221.056, rear axle 

Fig 3: Identifying Floating Brake Caliper Brake Pad Components - Model 221.056, Rear Axle

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of poisoning  caused by swallowing brake fluid. Risk of injury  caused by brake fluid coming into contact with skin and eyes.	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  to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
1	Ensure vehicle idle (bus idle)	Model 221.095 / 195	AR54.10-P-2000-01SX
2	Unscrew cap of brake fluid reservoir and extract some brake fluid	In order to prevent the brake fluid reservoir from overflowing when pressing back the brake pistons.
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
3	Remove wheels		AP40.10-P-4050SX
4	Remove bolts (10s) and remove cover panel (10)	Model 216.374 /377 /379, 221.074 /077 /174 /177 /179 on front axle Installation:  Replace bolts (10s). Coat ATE brake cylinder paste lightly on the contact surfaces of the bolt heads. Do not grease the thread Wipe off excess brake cylinder paste after tightening the bolts (10s). ATE brake cylinder paste	*BR00.45-Z-1078-06A
5	Separate brake pad contact sensor (S10/2, S10/4) from electrical feed line (1)	When removing the brake pads (5) on the right-hand side of the vehicle
6	Unclip the electrical feed line (1) from the cable retainer (1a) on the wheel carrier	When removing the brake pads (5) from the rear axle on the right-hand side of the vehicle
7	Pry off spring steel sheet (2) and remove
8	Pry off and remove protective caps (3a) from boots (3b)
9	Remove guide pin (3)		*BA42.10-P-1003-12M
			*BA42.10-P-1004-10M
10	Remove brake caliper (4)	Do not subject brake hoses (6) to tensile loads or kink. Attach brake caliper (4) without tension to vehicle to relieve load on brake hose (6), otherwise the brake hose (6) will be damaged. Do not detach brake hoses (6).
11	Take out brake pads (5)	Brake pads (5) are to be disposed of as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste.
		Only complete sets of brake pads (5) approved by Mercedes-Benz may be installed. Installation:  Insert inner brake pad (5) with riveted-on spring in brake piston. Vehicles without engine 156 /157 at rear axle: Slide outer brake pad (5) into brake caliper support (7) and install brake caliper (4). Vehicles with engine 156 / 157, at the rear axle: Insert outer brake pad (5) with spring riveted on into brake caliper (4) and mount brake caliper (4).
12	Pull brake pad contact sensor (S10/2, S10/4) out of the pad backing plate of the brake pad (5)	When removing the brake pads (5) on the right-hand side of the vehicle Installation:  Replace defective brake pad contact sensor (S10/2, S10/4).
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01A
	Checking
13	Check brake pads (5) and brake disks (8)	Replace brake pads (5) and brake disks (8) in complete sets if necessary.
	Check brake lining thickness		AP42.10-P-4253A
	Inspect condition of brake disks		AP42.10-P-4258SX
14	Check brake caliper (4) for leaks	In the event of leaks: ↓ Replace rear axle brake caliper.	AR42.10-P-0080SX
		Install new front axle brake caliper.	AR42.10-P-0070SX
15	Check dust boot (9) on brake piston for damage	If dust boot (9) is damaged: ↓ Replace rear axle brake caliper.	AR42.10-P-0080SX
		Install new front axle brake caliper.	AR42.10-P-0070SX
16	Press back brake piston using pusher tool (01)	If the brake piston is difficult to move: ↓ Replace rear axle brake caliper.	AR42.10-P-0080SX
		Install new front axle brake caliper.	AR42.10-P-0070SX
			Fig 4
	Clean
17	Clean contact surfaces of brake pads (5) on brake caliper (4) and brake caliper support (7) using rags	Do not damage dust boot (9) in the process. Do not use sharp-edged or pointed tools, otherwise the brake caliper (4) or brake caliper support (7) will be damaged. Cleaner from package	*BR00.45-Z-1028-04A
18	Coat brake paste	All models except model 216.374 /377 /379, 221.074 /077 /174 /177 /179 Only use the brake pastes listed in the linked description, and apply it solely at the specified positions, otherwise there may be problems with noise or damage to the brake system!	AR42.10-P-0161-01B
		MB brake paste Molykote (copper colored)	*BR00.45-Z-1057-06A
		MB Plastilube brake paste (brownish) Model 216.374 /377 /379, 221.074 /077 /174 /177 /179: Use ATE Plastilube paste only on the front and rear axles.	*BR00.45-Z-1084-06A
		ATE brake pad paste (ATE Plastilube)	*BR00.45-Z-1054-06A
19	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 engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system.	AS42.50-Z-0002-01A
20	Push down brake pedal several times	Model 221.095 /195: Fully depress brake pedal 10-times in quick succession. Model 216, 221, except 221.095 / 195: Depress brake pedal several times until a firm resistance is noticeable.
21	Check fluid level in the brake fluid reservoir, correct if necessary		AP42.10-P-4210SX
	Risk of death  caused by limbs being caught  or crushed  by rotating parts when performing tests on the brake test stand	Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY STOP switch to shut down test stand.	AS42.00-Z-0001-01A
22	Carry out brake test on the test stand		AP42.00-P-4290BA

Fig 4: Identifying Pusher Tool (000 589 52 43 00)

Courtesy of MERCEDES-BENZ USA