Removing and installing power steering pump (vehicles with 6-cylinder TFSI engine, vehicles with dynamic steering) — AUDI

🧭 Before you start

Extract fluid, clamp the hoses without touching the non-return valve, drain coolant and move the expansion tank, hoses and coolant pipes clear. Mark the belt direction, slacken it off the pump pulley, mark and remove the pulley, then unplug the connector, undo the union nut and unbolt the pump. Fit the suction hose with the P marking on the pump seam and a new clip at 4 mm, bolt the pump in front bolts first, tighten the union nut with a 17 mm slotted insert, and refit pulley and belt. Fill, bleed, leak-check and refill coolant.

Fits: Audi A5 (8T, 2007–2016), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015)

• Opens: coolant, power steering fluid
• Renewed: gaskets

Don't miss

• Never clamp the return hose near its non-return valve.
• Tighten the suction hose clip while the pump is still out.
• Align the P marking on the suction hose with the seam on the pump.
• Route the suction hose free of kinks and twists to the reservoir.
• Align the pulley marking with the hub marking before tightening the pulley bolts.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. Raise vehicle on lifting platform.
2. Lift off engine cover panel (1).
3. Extract hydraulic fluid from reservoir with used oil collection and extraction unitV.A.G 1782.
4. Clamp off suction hose (1) and return hose (2) using hose clamps3094.
5. ⚠ Hose clamps up to 25 mm3094 must not be applied at any point near the non-return valve in the return hose (2). The non-return valve will otherwise be damaged.The non-return valve is located in the return hose (2) between the hose clips (arrows). — Remove noise insulation General body repairs, exterior66Noise insulation; Exploded view - noise insulation.

6. Drain coolant 19Cooling system/coolant; Draining and filling cooling system.
7. Detach coolant lines (1) and (2) from coolant expansion tank. Remove nuts (arrows) and lift coolant expansion tank (3) out of retainer.
8. Release and unplug connector (bottom) at coolant expansion tank (3). Move coolant expansion tank (3) to one side.
9. Detach coolant hoses (1) and (2) from coolant pipe and swivel aside.
10. Detach coolant line (3) from radiator and swivel aside.
11. Remove bolt (1) for coolant pipes (top).
12. Remove bolt (1) for coolant pipes (bottom). [Note: Before removing poly V-belt, mark direction of rotation. A used belt can break if it runs in the opposite direction. Ensure that the belt is properly seated in the pulleys when installing.]
13. Swivel tensioner in direction of (arrow) to slacken poly V-belt.
14. Remove poly V-belt only from power steering pump pulley 13Cylinder block (pulley end); Exploded view - poly V-belt drive.
15. Release tensioner and remove tool.
16. Mark position of pulley relative to hub (arrow). [Note: If the power steering pump is being renewed, transfer the marking on the hub from the old pump to the new pump.Due to limited space, it is not possible to see the positions of the holes in the pulley relative to the holes in the hub during installation.]
17. Remove bolts (arrows). Use pin wrench3212 to counterhold pulley.
18. Take off power steering pump pulley.
19. Place drip tray underneath power steering pump.
20. Release connector (2) and unplug.
21. Unscrew union nut (1) and pull pressure line out of power steering pump.
22. Seal off connections of power steering pump and lines with clean plugs.
23. Unbolt power steering pump from bracket. To do so, remove front bolts (1) and rear bolt (2). [Note: Bolt (2) is concealed inside the bracket and has already been unscrewed in the illustration.]
24. Release spring-type hose clip (arrow) for suction hose (2) at reservoir (1) and detach suction hose (2) from reservoir.
25. Take power steering pump with suction hose out of bracket. [Note: Renew gaskets and seals.Before fitting a new power steering pump, put in hydraulic fluid at the inlet and turn pump by hand until fluid flows out at the pressure outlet.Secure all hose connections with new hose clips Electronic parts catalogue.Due to restricted space, the hose clip cannot be tightened with the hose clip pliersV.A.G 1275 after the power steering pump is installed, and so this must be done while the pump is still removed.]
26. Before installing power steering pump, fit suction hose and align marking "“P”" with seam on pump.
27. Secure suction hose with new hose clip.
28. Note installation dimensions of hose clip. Dimension (a) should be 4 mm.
29. Fit power steering pump with suction hose into bracket (3).
30. First screw in front bolts (1) loosely.
31. Then screw in rear bolt (2) loosely.
32. Tighten bolts (1) and (2).
33. Press pressure line into power steering pump as far as stop. Then screw on union nut (1).
34. Plug in connector (2).
35. Use slotted ring spanner insert, 17 mmV.A.G 1331/10 to tighten union nut, as shown in illustration.
36. Route suction hose (2) through engine compartment so that it is free of kinks and tension, and secure hose to fluid reservoir. [Note: Make sure that the suction hose is not kinked or twisted.]
37. Clean off fluid in engine compartment where necessary.
38. Align marking on pulley (arrow) (made previously) with marking on hub.
39. Tighten bolts (arrows) for pulley 13Cylinder block (pulley end); Exploded view - poly V-belt drive.
40. Install poly V-belt and make sure that belt runs straight 13Cylinder block (pulley end); Exploded view - poly V-belt drive. [Note: Ensure that the belt is properly seated in the pulleys when installing.]
41. Check hydraulic fluid level .
42. Bleed steering system .
43. Check steering system for leaks .
44. Install noise insulation General body repairs, exterior66Underbody trim; Exploded view - underbody trim.

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