Power Steering Pump, Removing And Installing, 4-Cylinder Diesel Engine, Vehicles With Dynamic Steering: Removing
-- Place the vehicle on a hoist.
-- Remove the engine cover upward.
-- Bring the lock carrier into the service position. Refer to OVERVIEW - LOCK CARRIER .
-- Mark the position of the belt pulley to the hub by making a mark -arrow-.
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.
-- First loosen the belt pulley bolts (only possible on 2 of the 3 bolts because of restricted space). Use the Wrench - Pin Type 3212 as a counter hold tool if necessary.
-- Release the tension on the ribbed belt and hold the tensioner in place with the tool. At the same time, rotate the power steering pump belt pulley so the third bolt can be loosened.
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.
-- Remove the ribbed belt from the power steering pump belt pulley. Refer to RIBBED BELT, REMOVING AND INSTALLING .
-- Remove the loosened bolts and the belt pulley.
-- Extract the hydraulic fluid from the reservoir using Used Oil Collection and Extraction UnitSMN372500.
-- Clamp off the evacuation hose -1- and return hose -2- using the Hose Clamps - Up To 25mm 3094.
- 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-.
-- Open the hose clamps -arrows- and remove the air guide hose.
-- Remove the noise insulation. Refer to RIBBED BELT, REMOVING AND INSTALLING .
-- Place the Shop Crane - Drip Tray VAS6208 under the power steering pump.
-- Carefully cut through the cable ties -1- for the wiring harness -2- if applicable.
-- Remove the clamp -4- from the evacuation hose -3- and then remove the evacuation hose -3-.
-- 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.
-- Seal the power steering pump and line connections using clean sealing plugs.
-- Remove the bolts -1- (quantity: 3) and the bolt -3-.
-- Drive the sleeve -2- for the bolt -3- in the bracket back slightly to install the power steering pump.
-- Remove the power steering pump.