Remove/install active roll stabilization hydraulic pump - AR32.34-P-0030GQ

MODEL 166 with ENGINE 276, 642 with CODE 468 (ACTIVE CURVE SYSTEM)

Shown on model 166.057

Fig 1: Identifying Active Roll Stabilization Hydraulic Pump Remove/Install Components - Shown On Model 166.057

Courtesy of MERCEDES-BENZ USA

	Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid.	Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	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 active roll stabilization		AH32.34-P-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Switch off ignition
2	Open engine hood		AR88.40-P-1000GQ
3	Remove upper engine cover
4	Remove tensioning device for poly-V belt	Engine 642	AR13.20-P-0001OGR
		ENGINE 276.8	AR13.20-P-0001GQC
		ENGINE 276.9	AR13.20-P-0001GQ
5	Release and disconnect electrical connector on Active Roll Stabilization intake throttle valve (Y86/2)
6	Clamp off hose (1a) and detach from hydraulic pump (1)		AR32.00-P-0001-01A
		Assembly cleaner	*BR00.45-Z-1028-04A
		Clamp	Fig 2
		Record plug	Figure
7	Detach line (1b) from hydraulic pump (1)		AR32.00-P-0001-01A
		Bolt, hydraulic line to hydraulic pump	*BA32.00-P-1006-01A
		Assembly cleaner	*BR00.45-Z-1028-04A
		Record plug	Figure
8	Remove bolts (2) and remove hydraulic pump (1)	Bolt, hydraulic pump to cylinder crankcase	*BA32.00-P-1001-01A
		ENGINE 276	*BA32.00-P-1002-01A
		ENGINE 642	*BA32.00-P-1003-01A
9	Install in the reverse order
10	Fill and bleed ACTIVE CURVE SYSTEM		AR32.34-P-0021GQ

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 276	MODEL 166 with ENGINE 642
BA32.00-P-1001-01A	Bolt, hydraulic pump to cylinder crankcase	Nm	20	23

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 276
BA32.00-P-1002-01A	Bolt, hydraulic pump to timing case	Nm	35

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 642
BA32.00-P-1003-01A	Bolt, carrier for hydraulic pump to cylinder crankcase	Nm	20

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 276	MODEL 166 with ENGINE 642
BA32.00-P-1006-01A	Bolt, hydraulic line to hydraulic pump	Nm	10	10

Fig 2: Identifying Clamp (000 589 54 37 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	-