Power Steering Pump, Removing And Installing, 6-Cylinder Diesel Engine, Vehicles With Dynamic Steering: Removing

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-- Place the vehicle on a hoist.

-- Extract the hydraulic fluid from the reservoir using Used Oil Collection and Extraction Unit SMN372500.

-- Carefully remove engine cover from 4 retaining pins in succession -arrows-.

Fig 1: Identifying Engine Cover

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-- Clamp off the evacuation hose -1- and return hose -2- using the Hose Clamps - Up To 25mm 3094.

Fig 2: Locating Suction & Return Hose Clamping Location

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CAUTION:

The Hose Clamps - Up To 25mm 3094 must not be secured on the return hose -2- near the check valve area. Otherwise the check valve will be damaged.
The check valve is located in the return hose -2- between the hose clamps -arrows-.

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Drain the coolant. .

-- Open the clamp -1- on the left longitudinal member and remove the coolant hose -2-.

Fig 3: Identifying Coolant Hose

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-- Remove the upper section of the intake manifold -1-. Remove the air guide hose -4-, the eyelet -3-, the clamp -7- and the coolant hose.

Fig 4: Identifying Upper Section Of The Intake Manifold

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-- Remove the coolant reservoir -2-, pull out the oil dipstick -5- and remove the toothed belt guard -6-.

-- Secure the air guide hose -1- to the brake line -3- using a wire -2-.

Fig 5: Securing Air Guide Hose -1- To Brake Line

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NOTE:

Mark the direction of travel before removing ribbed belt. Reversed direction of travel with a used belt can lead to malfunctions. When installing the ribbed belt, make sure it is seated correctly on pulleys.

-- Move the tensioner in the direction of the -arrow- to release the tension on the ribbed belt. Use a Torx Socket - T60 T40087.

Fig 6: Rotate The Belt Tensioner In The -Direction Of The Arrow

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-- Remove the ribbed belt from the power steering pump belt pulley. .

-- Mark the position of the belt pulley to the hub by making a mark -arrow-.

Fig 7: Identifying Belt Pulley To Hub Marking

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NOTE:

If the power steering pump will be replaced, transfer the marking from the hub on the old pump to the new one.

Because of space restrictions, it is not possible to see the position of the belt pulley holes to the holes in the hub when installing.

applies to a belt pulley with holes for counter-holding

Fig 8: Identifying Pulley Bolts

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-- Remove bolts -arrows-. Use Wrench - Pin Type 3212 as counter-hold.

-- Remove belt pulley for vane pump.

applies to a belt pulley without holes for counter-holding

Fig 9: Removing Power Steering Belt Pulley

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-- First just loosen the belt pulley bolts -arrow-. If necessary use the Counterhold - Kit - Multiple Use T10172 with the Counterhold - Kit - Adapter 5 T10172/5 -1-.

-- Remove the bolts that were previously loosened and remove the belt pulley from the power steering pump.

Applies to all

Fig 10: Identifying Intake Hose

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-- Place the Shop Crane - Drip Tray VAS6208 under the power steering pump.

-- Cut through the cable ties -4-.

NOTE:

The illustration shows the power steering pump removed.

-- Remove the clamp -2- and the intake hose -1-.

-- Lay several cloths under the power steering pump and pressure line.

-- If the pressure line -C- is also attached to the A/C compressor by a bracket, the remove the front upper A/C compressor bolt.

Fig 11: Marking Direction Of Operation Of Ribbed Belt

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-- Lay several cloths under the power steering pump and pressure line.

-- Remove the union nut -1- and pull the pressure line out of the power steering pump.

Fig 12: Identifying Power Steering Pump Pressure Line

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-- Seal the power steering pump and line connections using clean sealing plugs.

-- Remove the bolts -1- and -4- and the power steering pump -2-.

Fig 13: Identifying Power Steering Pump Bolts And Sleeve

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-- To install the power steering pump -2-, drive the sleeve -3- for the bolt -4- in the bracket back slightly.