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

MODEL 460, 461

MODEL 463 up to model year 2013

Fig 1: Bleeding Differential Lock Hydraulic System - Shown On Model 460

G10780510

Courtesy of MERCEDES-BENZ USA

	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
1	Connect filling and bleeding device to expansion reservoir (3)
	Brake fluid notes		AH42.50-P-0001-01A
	000 588 01 82 00 Filling unit		WS25.00-P-0016B
	Brake fluids (DOT 4 plus)	For all vehicle models from Mercedes-Benz and smart Observe manufacturer's operating instructions. Bleed pressure is 2 bar. Note the different installation positions for the expansion reservoir (3) for the various vehicle model designations.	MB 331.0 brake fluid A 000 989 08 07
2.1	Open bleed screw on front axle shift cylinder (1)	Model all To bleed the front differential lock, allow approx. 80 cm³ of brake fluid to flow out free of bubbles.
2.2	Open bleed screw on rear axle shift cylinder (2)	Model all To bleed the rear differential lock, allow approx. 80 cm³ of brake fluid to flow out free of bubbles.
2.3	Open bleed screw on shift cylinder of second rear axle	Model 461.392 To bleed the rear differential lock of the second rear axle, allow approx. 80 cm³ of brake fluid to flow out free of bubbles.
3.1	Close bleed screw on front axle shift cylinder (1)	Model all
3.1	Close bleed screw on front axle shift cylinder (1)	Bleed screw to differential lock cylinder	*BA33.40-P-1005-01A
3.2	Close bleed screw on rear axle shift cylinder (2)	Model all
3.2	Close bleed screw on rear axle shift cylinder (2)	Bleed screw to differential lock cylinder	*BA35.40-P-1006-01A
3.3	Close bleed screw on shift cylinder of second rear axle	Model 461.392
3.3	Close bleed screw on shift cylinder of second rear axle	Bleed screw to differential lock cylinder	*BA35.40-P-1006-01A
4	Connect filling and bleeding unit
	000 588 01 82 00 Filling unit		WS25.00-P-0016B
5	Check brake fluid level in expansion reservoir (3), correct if necessary
	Brake fluid notes		AH42.50-P-0001-01A
	Brake fluids (DOT 4 plus)	For all vehicle models from Mercedes-Benz and smart	MB 331.0 brake fluid A 000 989 08 07

DIFFERENTIAL LOCK CYLINDER

Number	Designation		Model 460, 461	Model 463
BA33.40-P-1005-01A	Bleed screw to differential lock cylinder	Nm	14	14

DIFFERENTIAL LOCK CYLINDER

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