Hydraulic Brake System - Replacing Brake Fluid - AP42.50-P-4280G

Model 460, 461 

Model 463 

up to model year 2019 

except code 979 (Special protection MB Guard) 

Illustration shows model 461.302 

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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
	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	AS42.50-Z-0001-01A
		handling brake fluid.
	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Brake fluid notes		AH42.50-P-0001-01A
1	Open engine hood
	Clean
2	Clean cap and brake fluid reservoir (1)
3	Unscrew cap
4	Suction off brake fluid from brake fluid reservoir (1)
5	Fill with new brake fluid up to the "MAX" mark in the brake fluid reservoir (1)
	General brake fluid		BB00.40-P-0330-01A
	Brake fluids (DOT 4 plus)		BB00.40-P-0331-00A
		Brake fluid	*BF42.10-P-1001-01B
6	Connect filling and bleeding unit on brake fluid reservoir (1) and switch on
	000 588 01 82 00 Filling unit	Pay attention to manufacturer's operating instructions.	WS25.00-P-0016B
7	Raise vehicle
8	Remove front wheel-and-tire assemblies		AP40.10-P-4050G
9	Allow brake fluid to flow out at bleed screws on brake calipers
		Model 460, 461 Model 463 (except 463.270/271) up to model year 2013 except code 979 (Special protection MB Guard)	AR42.10-P-0010GG
		Model 463.270/271 up to model year 2019 except code 979 (Special protection MB Guard)	AR42.10-P-0010GX
		Bleed screw at front axle fixed brake caliper Bleed screw at front axle fixed brake caliper	*BA42.10-P-1001-02B
		Bleed screw to front axle floating brake caliper Bleed screw to front axle floating brake caliper	*BA42.10-P-1001-03G
		Bleed screw at rear axle floating caliper Bleed screw on rear axle floating caliper New brake fluid must escape without any bubbles via the bleed hose: ↓ Carrying out bleeding operation	*BA42.10-P-1001-17B
10	Allow brake fluid to flow out at bleed screws on central clutch release bearing	Vehicles with manual transmission
		New brake fluid must escape without any bubbles via the bleed hose: ↓ Carrying out bleeding operation	AP29.00-P-2981G
	Clean
11	Clean brake fluid off wheel brake cylinders, brake cover plate, brake calipers and clutch slave cylinders
	Check
12	Check the clutch operator for proper operation and leaktightness	Vehicles with manual transmission If complaint present ↓ Determine and rectify cause, subject to separate repair order.
13	Check brake system for leaks	If complaint present ↓ Determine and rectify cause, subject to separate repair order.
14	Install in the reverse order
15	Correct fluid level in brake fluid reservoir (1)		AP42.50-P-4210G