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Home >> Audi >> 2016 >> S4 Premium Plus, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1312 (STEERING (2 Of 2) (CABRIOLET)) >> 48 Steering >> Removal And Installation >> Power Steering Pump, Vehicles Without Dynamic Steering [CAUA, CFSA] >> Removing

Power Steering Pump, Vehicles Without Dynamic Steering [CAUA, CFSA]: Removing

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Special Tools And Workshop Equipment Required 

General Information 

NOTE:

The power steering pump is not designed to be serviced. If there are customer complaints, the cause must be determined using a pressure and leak test. If there is a malfunction, replace the pump.

If power steering fluid is low in reservoir, check steering system for leaks.

If there are leaks in the area of the line connections, the lines/connections must first be inspected for leaks, tightened as necessary and wiped dry.

Power steering pump is delivered without oil. Therefore, hydraulic oil must be filled before installation and turned by hand. Otherwise, noises when driving or damage to power steering pump may occur.

Replace the power steering pump seal and o-ring before installing.

-- Place the vehicle on a hoist.

-- Extract hydraulic oil from reservoir using :V.A.G 1782  .

-- Clamp off the suction hose -1- and return hose -2- using the :3094  .

Fig 1: Locating Suction & Return Hose Clamping Location
GWWA48-10368Courtesy of AUDI OF AMERICA, LLC
CAUTION:
  • The :3094  must not be secured on the return hose -2- in the check valve area. Otherwise, check valve will be damaged.
  • The check valve is located in the return hose -2- between the hose clamps -arrows-.

-- Remove noise insulation. Refer to NOISE INSULATION, REMOVING AND INSTALLING / OVERVIEW - NOISE INSULATION .

-- Lower the subframe. Refer to SUBFRAME MOUNT [CAUA] .

-- Remove heat shield for left drive axle -arrows-.

Fig 2: Driveshaft Heat Shaft
GWWA37-0630Courtesy of AUDI OF AMERICA, LLC

-- Place the drip tray underneath.

-- Remove the clamp -2- from the intake hose -1- and remove the intake hose -1- from the power steering pump.

Fig 3: Identifying Intake Hose -1-, Clamp -2-, Union Nut -3-, Pressure Line -4- & Bolts -5- & Bolt -6-
GWWA48-10405Courtesy of AUDI OF AMERICA, LLC

-- Remove the union nut -3- and remove the pressure line -4- from the power steering pump.

-- Remove the bolts -5- and the bolt -6-.

-- Remove the power steering pump with input shaft.

-- If necessary, remove the power steering pump input shaft -arrow- from the engine by hand.

Fig 4: Identifying Power Steering Pump Input Shaft -Arrow-
GWWA48-10307Courtesy of AUDI OF AMERICA, LLC

-- If the power steering pump -1- is replaced, the seal -2- and input shaft -3- must also be replaced.

Fig 5: Identifying Power Steering Pump, Seal & Input Shaft
GWWA48-10251Courtesy of AUDI OF AMERICA, LLC

-- Replace the power steering pump seal and o-ring -arrow-. Refer to OVERVIEW - POWER STEERING PUMP .

Fig 6: Checking Power Steering Pump Input Shaft O-Ring
GWWA13-0763Courtesy of AUDI OF AMERICA, LLC