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

MODEL 164 

Front axle 

Fig 1: Identifying Brake Pad On Floating Brake Caliper Components (1 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Rear axle 

Fig 2: Identifying Brake Pad On Floating Brake Caliper Components (2 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	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
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Lower brake fluid level in brake fluid reservoir down to "MIN" mark	In order to prevent the expansion reservoir overflowing when pressing back the brake pistons.
2	Remove wheels
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
3	Disconnect electrical connector of the brake pad contact sensor
4	Pry off spring steel sheet (1) and remove
5	Remove protective caps (4) and unscrew bolts of guide pins	Installation:  Install new bolts.
			*BA42.10-P-1002-10L
			*BA42.10-P-1003-12L
6	Remove floating brake caliper (2) with brake pads (3)	Do not tension or kink brake hose. To relieve the load on the brake hose attach the floating brake caliper (2) to the vehicle unstressed, otherwise the brake hose will be damaged.
	Notes on installing brake hoses	Installation:  Check the correct routing of the brake hose.	AH42.10-P-9406-01GZ
7	Remove brake pads (3) from floating brake caliper (2)	Brake pads (3) 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 brake pads approved by Mercedes-Benz (3) may be fitted in sets. Installation:  Install brake pads (3) without grease.
	Checking
8	Check brake lining thickness and brake disks	Replace brake pads (3) and brake disks in complete sets if necessary.
	Check brake lining thickness		AP42.10-P-4253A
	Inspect condition of brake disks		AP42.10-P-4258GZ
9	Pull brake pad contact sensor out of the pad backing plate of the brake pad and check	Check for damage, replace contact sensor if necessary.
	Notes on installing brake pad wear sensor contact sensors		AH42.10-P-0003-01GZ
10	Check guide pins and boots	Check guide pins for sluggishness and damage. Check boots for damage and loose seat. Replace damaged parts with new parts.
11	Check floating brake caliper (2)	In the event of a leaky floating brake caliper (2) or damaged dust boot: ↓
		Install new front axle brake caliper.	AR42.10-P-0070GZ
		Replace rear axle brake caliper.	AR42.10-P-0080GZ
12	Press back brake piston using pusher tool (5)	If the brake piston is difficult to move: ↓
		Install new front axle brake caliper.	AR42.10-P-0070GZ
		Replace rear axle brake caliper.	AR42.10-P-0080GZ
			Fig 3
13	Check fall of the dust boot	If the dust boot projects beyond the brake piston, position the dust boot correctly.
	Clean
14	Clean the contact surfaces of brake pads (3) on floating brake caliper (2) and floating caliper carrier with a rag	Installation:  In the process do not damage the dust boot and boots. Do not use any sharp-edged or pointed tools, otherwise the floating brake caliper (2) or floating caliper carrier will be damaged.
		LU cleaner	*BR00.45-Z-1028-04A
15	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.	-
16	Operate the brake pedal several times until the brake pads (3) contact the brake disks	Firm resistance should be noticeable at the brake pedal.
17	Check brake fluid level, correct if necessary
	Brake system - inspect fluid level		AP42.10-P-4210GZ

FRONT AXLE BRAKE CALIPER

Number	Designation		Model 164 except 164.177	Model 164.177
BA42.10-P-1002-10L	Guide pin to caliper support	Nm	55	30

REAR AXLE BRAKE CALIPER

Number	Designation		Model 164
BA42.10-P-1003-12L	Guide pin to caliper support	Nm	25

Fig 3: Identifying Pusher Tool (000 589 52 43 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

AUXILIARY REPAIR MATERIALS

Number	Designation
BR00.45-Z-1028-04A	LU cleaner