V8 FSI Engine
Power Steering Pump
Power Steering Pump, Assembly Overview:
• Always replace seals.
• Do not reuse fluid you have drained.
• Only use hydraulic oil.
• When replacing the power steering pump, replace its seal and O-ring.
• Only use grease to lubricate, refer to the Parts Catalog.
1 Power Steering Pump
• For the correct allocation, refer to the Parts Catalog
• Fill with hydraulic oil before installation
• Checking delivery pressure, refer to => [ Power Steering Pump Delivery Pressure, Checking ] Power Steering Pump Delivery Pressure, Checking
• Removing and installing.
2 Bolt
• 85 Nm
• Transmission/engine/power steering pump bolt
3 Input Shaft
• If replacing the power steering pump, replace the input shaft as well.
• When re-installing, lubricate the drive shaft splines and the vane pump all the way around. Allocation, refer to the Parts Catalog.
4 Sealing Ring
• Replace
5 Radial Shaft Seal
• Replace
6 Bolt
• 22 Nm
• Note the different lengths
7 Bolt
• 22 Nm
• Note the different lengths
8 Bolt
• 9 Nm
9 Suction Line
10 Sealing Ring
• Always replace
11 Bolt
• 9 Nm
12 Pressurized Line
• Note installed position
13 Bolt
• 9 Nm
14 Banjo Bolt
• 35 Nm
15 Seal
• Always replace
Pressure Line Location on Power Steering Pump
- Install the pressure line - 3 - so that stop tab - 2 - contacts pump housing - 1 -.
Vane Pump, Removing and Installing:
Special tools, testers and auxiliary items required
• Torque Wrench 5-50 Nm (V.A.G 1331)
• Used Oil Collection and Extraction Device (V.A.G 1782)
• Drip Tray for VAS 6100 (VAS 6208)
• Hydraulic fluid
General Information
Vane 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 vane pump.
• If fluid is low in reservoir, always 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.
• If replacing the power steering pump, replace also the input shaft, the seal and the O-ring.
Removing
- With vehicles with air suspension, place vehicle on hoist. Refer to => [ Positioning Vehicle on Hoist and Wheels ] Positioning Vehicle on Hoist and Wheels.
- Extract hydraulic oil from reservoir using (V.A.G 1782).
- Remove front left wheel.
- Remove front noise insulation - 1 and 2 -.
- Remove noise insulation bracket - arrows -.
- Remove head shield - A - from steering gear.
- Remove bolts - 1 and 2 - and remove left primary catalytic converter strap.
• Place a cloth under separation point to absorb escaping hydraulic oil.
- Remove hose - arrow - from reservoir.
• Place a cloth under separation point to absorb escaping hydraulic oil.
- Remove bolts - 1 - and nut - 2 -. Remove suction line.
- Remove pressure line banjo bolt - arrow -.
- Remove bolt - 3 -.
- Remove bolts - 1 and 2 - and remove vane pump.
• When removing power steering pump, note location of input shaft.
- If the power steering pump - 1 - is replaced, the seal - 2 - and input shaft - 3 - must also be replaced.
- Replace the power steering pump seal and O-ring - arrow -.
Installing
Install in reverse order of removal. Note the following:
• Clean oiled places in engine compartment.
• Always replace O-rings on driveshaft of vane pump and intake line.
• Before installing new power steering pump on intake side, fill hydraulic oil and turn by hand until oil escapes on pressure side.
• Hose connections and hoses must be free of oil and grease before installing.
• Secure all hose connections with hose clamps appropriate to the model. Refer to the Parts Catalog.
- Grease the splines on the power steering pump - 1 - and input shaft - 3 - all the way around. Refer to the Parts Catalog
- Replace the sealing ring - 2 -.
- Complete vane pump as shown in illustration and install on engine.
1. Power steering pump
2. Seal
3. When installing the input shaft, grease the splines on both side all the way around. Allocation, refer to the Parts Catalog.
- Install primary catalytic converter strap.
- Clean oiled places in engine compartment.
- Top off hydraulic oil.
- Check power steering fluid level. Refer to => [ Power Steering, Checking Hydraulic Oil Level ] Power Steering, Checking Hydraulic Oil Level.
- Bleed the steering system. Refer to => [ Steering System, Bleeding after Reinstalling ] Service and Repair.
- Check the steering system for leaks. Refer to => [ Steering System, Checking for Leaks ] Steering System, Checking For Leaks.
- On vehicles with air suspension, position vehicle on wheels. Refer to => [ Positioning Vehicle on Hoist and Wheels ] Positioning Vehicle on Hoist and Wheels.