Bleed differential lock hydraulic system - AR33.40-P-0701GW

MODEL 463 as of model year 2013/facelift 2012 

Fig 1: Expansion Reservoir, Front And Rear Axle Shift Cylinder

Courtesy of MERCEDES-BENZ USA

1	Open engine hood and raise to vertical position		AR88.40-P-1000GG
	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
2	Connect brake fluid changer to expansion reservoir (3)	Observe manufacturer's operating instructions. Bleed pressure is 2 bar.
	Brake fluids (DOT 4 plus)	For all vehicle models from Mercedes-Benz and smart	MB 331.0 brake fluid A 000 989 08 07
	Brake fluid notes		AH42.50-P-0001-01A
3	Lift/jack up vehicle		AR00.60-P-1000G
4.1	Open bleed screw on front axle shift cylinder (1)	To bleed the front differential lock, allow approx. 80 cm3 of brake fluid to flow out free of bubbles.
4.2	Open bleed screw on rear axle shift cylinder (2)	To bleed the rear differential lock, allow approx. 80 cm3 of brake fluid to flow out free of bubbles.
5.1	Close bleed screw on front axle shift cylinder (1)		*BA33.40-P-1005-01A
5.2	Close bleed screw on rear axle shift cylinder (2)		*BA35.40-P-1006-01A
6	Lower vehicle		AR00.60-P-1000G
7	Disconnect brake fluid changer
8	Check brake fluid level in expansion reservoir (3), correct if necessary
	Brake fluids (DOT 4 plus)	For all vehicle models from Mercedes-Benz and smart	MB 331.0 brake fluid A 000 989 08 07
	Brake fluid notes		AH42.50-P-0001-01A

DIFFERENTIAL LOCK CYLINDER

Number	Designation		Model 463
BA33.40-P-1005-01A	Bleed screw to differential lock cylinder	Nm	14

DIFFERENTIAL LOCK CYLINDER

Number	Designation		Model 460, 461, 463
BA35.40-P-1006-01A	Bleed screw to differential lock cylinder	Nm	14