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Home >> Audi >> 2014 >> A5 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 522 (Steering (Sedan)) >> 48 Steering >> Power Steering Hydraulics >> Vane Pump, Removing And Installing >> Power Steering Pump, Removing And Installing, 4-Cylinder TFSI, With Dynamic Steering >> Removing

Power Steering Pump, Removing And Installing, 4-Cylinder TFSI, With Dynamic Steering: Removing

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-- Place the vehicle on a hoist.

-- Remove the engine cover upward.

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.

-- Remove the ribbed belt from the power steering pump belt pulley. Refer to OVERVIEW - CYLINDER BLOCK, BELT PULLEY SIDE .

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

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

Fig 1: Locating Suction & Return Hose Clamping Location
GWWA48-10368Courtesy of AUDI OF AMERICA, LLC
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 .

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

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

Fig 2: Identifying Belt Pulley To Hub Marking
GWWA48-10240Courtesy of AUDI OF AMERICA, LLC
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.

-- 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.

Fig 3: Identifying Pulley Bolts
GWWA10-0340Courtesy of AUDI OF AMERICA, LLC

-- Turn the power steering pump belt pulley so that the third bolt can be loosened.

-- Remove the bolt and remove the belt pulley.

-- Open the hose clamps -arrows- and remove the air guide hose.

Fig 4: Identifying Air Intake Hose Components
GWWA21-10302Courtesy of AUDI OF AMERICA, LLC

Applies to hot climate vehicles

Fig 5: Identifying After-Run Coolant Pump Electrical Connector
GWWA19-10770Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -2-.

-- Remove the bolt -1- and move the After-Run Coolant Pump -V51- to the side.

Applies to all

Fig 6: Identifying Intake & Suction Hose
GWWA48-10381Courtesy of AUDI OF AMERICA, LLC

-- 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.

Fig 7: Identifying Power Steering Pump Pressure Line
GWWA48-10500Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the two bolts -1- for mounting the power steering pump from the front.

Fig 8: Identifying Power Steering Pump
GWWA48-10237Courtesy of AUDI OF AMERICA, LLC
NOTE:

The illustration shows the power steering pump without belt pulley.

-- Drive the sleeve -2- for the bolt -3- in the bracket back slightly to install the power steering pump.

-- Remove the power steering pump.