Replace brake fluid - AP42.00-P-4280V

MODEL 171.442 /454 /456 /473 

Fig 1: Identifying Brake Fluid Changing Equipment

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

Bleed screw to central clutch operator

*BA25.20-P-1001-01B

	Remove/install and replace
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.
	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.
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Open engine hood and raise to vertical position
	Opening engine hood, moving to upright position and closing		AR88.40-P-1000V
2	Undo cap of expansion reservoir for brake fluid
3	Pump brake fluid out of the expansion reservoir for brake fluid
4	Fill new brake fluid up to the "MAX" mark of the brake fluid expansion reservoir	Brake fluid	*BF42.10-P-1001-01A
5	Connect brake fluid changing unit (01) to brake fluid expansion reservoir	Follow the operating instructions for the brake fluid changing unit (01). Brake fluid changing equipment
6	Raise vehicle with lifting platform
	Lift/jack up vehicle		AR00.60-P-1000V
7.1	Remove rear section of lower engine compartment paneling	Vehicles with manual transmission
	Detach/attach lower engine compartment paneling		AR61.20-P-1105V
8	Replace brake fluid
	Carrying out bleeding operation	The new brake fluid must escape via the bleed hose free of bubbles.	AR42.10-P-0010-02V
		Bleed screw to brake caliper	*BA42.10-P-1002-12P
		Bleed screw to brake caliper	*BA42.10-P-1002-10P
		Bleed screw to central clutch operator	*BA25.20-P-1001-01B
9	Lower vehicle
	Lift/jack up vehicle		AR00.60-P-1000V
10	Detach brake fluid replacement unit (01) from expansion reservoir for brake fluid.
11	Correct the fluid level in the brake fluid expansion reservoir	Brake fluid	*BF42.10-P-1001-01A
12	Screw cap onto expansion reservoir for brake fluid

FRONT AXLE BRAKE CALIPER

Number	Designation		Model 171
BA42.10-P-1002-10P	Bleed screw to brake caliper	Nm	7

REAR AXLE BRAKE CALIPER

Number	Designation		Model 171 except 171.473	Model 171.473
BA42.10-P-1002-12P	Bleed screw to brake caliper	Nm	7	7

CLUTCH ACTUATION

Number	Designation		Transmission 716.6
BA25.20-P-1001-01B	Bleed screw to central clutch operator	Nm	9

BRAKE FLUID

Number	Designation			Model 171
BF42.10-P-1001-01A	Brake fluid	Filling capacity	Liters	≈0.45 to 0.6
		Specifications for Operating Fluids	Sheet	BB00.40-P-0330-01A
			Sheet	BB00.40-P-0331-00A