Remove/check/install front axle brake pads - AR42.10-P-1600R

MODEL 211.026 up to 31.8.03, 211.028/029/056, 211.065 up to 31.8.03, 211.070/072/223/226/256/265/270/272/616/620 

MODEL 211.041/241 with CODE (950) EVOLUTION AMG sport package with CODE (952) Sport package 

MODEL 230.454/456/458/467/471/475 

MODEL 211.252/254 except CODE (494) California version except CODE (498) Japan version except CODE (625) Australia version 

MODEL 211.052/054 with CODE (950) EVOLUTION AMG sport package with CODE (952) Sport package 

MODEL 211.057/257 except CODE (494) California version 

MODEL 211.024 with CODE (Z04) Light armoring with CODE (950) EVOLUTION AMG sport package with CODE (952) Sport package 

Fig 1: Identifying Front Axle Brake Pad Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of injury  caused by body parts being jammed or crushed. Risk of injury  to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system	Deactivate SBC brake system using STAR DIAGNOSIS.	AS42.46-Z-0001-01A
	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
1	Deactivate SBC brake system using STAR DIAGNOSIS.	Vehicles with Sensotronic Brake Control (SBC) The following steps should be run through in STAR DIAGNOSIS: Select menu item "SBC Sensotronic Brake Control"/"Deactivate 'SBC' system". Then process all the individual steps from top to bottom.
2	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.
			*BA42.50-P-1001-01D
3	Remove the front wheels
	Remove/install wheels		AP40.10-P-4050Z
4	Separate brake pad contact sensor connector (S10/1x1, S10/2x1)
5	Knock out retaining pins (41) with a punch (035)	Installation:  Knock retaining pins (41) all the way in.
6	Remove retaining spring (31d)
7	Pull brake pads (43) out of fixed caliper (31a)	Use lever (034) if brake pads (43) are stuck. When pushing out the brake pads (43) insert a wedge between the lever (034) and fixed brake caliper (31a) .
			*601589076300
			*123589133300
		Installation:  Do not use any sharp-edged or pointed tools for cleaning the brake pad guides. For brake pads (43) with plate (43a) the mark (refer to arrow) must face towards the wheel for forward travel. Only complete sets of brake pads (43) approved by Mercedes-Benz may be installed. Brake pads (43) 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.
8	Pull brake pad contact sensor (S10/1, S10/2) out of the pad backing plate of the brake pad (43)	Installation:  Replace defective contact sensor (S10/1, S10/2).
	Notes on installing brake pad wear sensor contact sensors		AH42.10-P-0003-01A
	Checking
9	Check brake pad thickness and brake disks	Replace brake pads (43) and brake disks in sets if necessary.
	Check brake lining thickness		AP42.10-P-4253A
	Inspect condition of brake disks		AP42.10-P-4258R
10	Check fixed caliper (31a) for leaktightness and dust boots for signs of damage and correct seating	If fixed caliper (31a) is leaky or dust boot is damaged or not seated correctly: ↓
		Install new fixed brake caliper (31a).	AR42.10-P-0070R
11	Press back brake piston using pusher tool (031)	In each case secure an opposed pair of brake pistons beforehand with wedges to prevent them from being pressed out . If the brake pads (43) of several brake calipers are removed, their brake pistons must also be secured to prevent them from falling out. Do not fit the pusher tool (031) to the brake disk, but rather push back the opposite brake pistons simultaneously. If the brake piston is difficult to move: ↓
		Install new fixed brake caliper (31a).	AR42.10-P-0070R
			*000589524300
			*601589076300
	Clean
12	If necessary, clean the perforation of brake disks		AR42.10-P-2260-01I
13	Apply brake paste	Only use the brake paste 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
14	Install in the reverse order
15.1	Activate SBC brake system using STAR DIAGNOSIS	Vehicles with Sensotronic Brake Control (SBC) The following steps should be run through in STAR DIAGNOSIS: Select the menu item "SBC-Sensotronic Brake Control"/"Initial startup after repair"/"Remove/install brake pads". Then process all the individual steps from top to bottom.
	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
15.2	Operate the brake pedal several times until the brake pads (43) contact the brake disks	Vehicles with Adaptive Brake (ABR) Firm resistance should be noticeable at the brake pedal.
	Checking
16	Check brake fluid level, correct if necessary
	Brake system - inspect fluid level		AP42.10-P-4210Z

Fig 2: Identifying Pusher Tool (000 589 52 43 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Wedge (601 589 07 63 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Lever (123 589 13 33 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.