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

MODEL 451.3/4 

Fig 1: Identifying Brake Fluid Reservoir, Brake Caliper And Wheel Brake Cylinder

Courtesy of MERCEDES-BENZ USA

	Replace
	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
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Remove maintenance flap
2	Unscrew cap of brake fluid reservoir (1)
3	Connect filler/bleeder unit to brake fluid reservoir (1) and apply specified pressure to brake system
	000 588 01 82 00 Filling unit		WS25.00-P-0016B
	General brake fluid		DOT 4. See GENERAL BRAKE FLUID (https://bevo.mercedes-benz.com/index.php?language_id=1)
	Brake fluids (DOT 4 plus)		MB 331.0 brake fluid A 000 989 08 07
		Note operator's manual for filler/bleeder unit.
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
4	Raise vehicle with vehicle lift	Position the front support plates of the vehicle lift as far as possible upwards, position the rear support plates as far as possible downwards and secure the vehicle to prevent it from slipping or toppling.
5	Remove dust cap from bleed valve
6	Connect hose of brake fluid receptacle to bleed valve of right wheel brake cylinder (3) and open bleed valve	Close the bleed valve only after the brake fluid escapes free of bubbles and without contamination (bright color of brake fluid). Brake bleed valve to rear axle wheel brake cylinder	*BA42.10-P-1001-08C
7	Carry out the bleeding process on the left wheel brake cylinder (3), right brake caliper (2) and left brake caliper (2) in the same manner	Observe correct sequence.
		Brake bleed valve to rear axle wheel brake cylinder	*BA42.10-P-1001-08C
		Brake bleeder valve to brake caliper	*BA42.10-P-1002-10A
8	Check brake pedal travel
	Bleed brake system manually	If the pedal feel is soft or the pedal travel is too long, ↓ the brake system must be bled manually.	AR42.10-P-0010-04SM
9	Push dust cap onto bleed valve
10	Lower vehicle with vehicle lift
11	Connect filling and bleeding unit
12	Check brake fluid level, correct if necessary	Brake system - inspect fluid level	AP42.10-P-4210MCC
13	Screw on cap of brake fluid reservoir (1)
14	Install maintenance flap
15	Check leaktightness of brake system
	Check brake system for leaks		AR42.10-P-0100-01MCC

BRAKE CYLINDER

Number	Designation		Model 451.3/4
BA42.10-P-1001-08C	Brake bleed valve to rear axle wheel brake cylinder	Nm	7

FRONT AXLE FLOATING CALIPER

Number	Designation		Model 451.3/4
BA42.10-P-1002-10A	Brake bleeder valve to brake caliper	Nm	7