Audi Workshop Service and Repair Manuals

Special tools and workshop equipment required

• ◆ 3094 Hose clamps
• ◆ V.A.G 1402 Power steering tester
• ◆ V.A.G 1402/2 Adapter
• ◆ V.A.G 1402/3 Adapter
• ◆ V.A.G 1402/6 Hose from adapter set

Pay attention to information on .

Vehicles with 6-cyl. 2-valve petrol engine => Page 48-90

Vehicles with 6-cyl. 5-valve petrol engine => Page 48-93

Vehicles with 6-cyl. diesel engine (TDI) => Page 48-95

Vehicles with 6-cyl. 2-valve petrol engine

• ‒ → Unclip and detach top engine cover -arrows-.

• ‒ → Unscrew ribbed belt cover -arrows-.

• ‒ Pinch off suction hose with hose clamp -3094-.
• ‒ → Press spring clip for connector and unplug connector from injector.
• ‒ Place drip tray in position.
• ‒ Unscrew -arrow- pressure pipe from pressure hose; to do so, provide support at hexagon of pressure hose.

• ‒ → Screw adapter V.A.G 1402/3 into pressure pipe in place of pressure hose.

• ‒ → Screw -arrow- hose of pressure gauge -V.A.G 1402- to adapter -V.A.G 1402/3-.
• ‒ Use corresponding adapters to connect hose from adapter set
  -V.A.G 1402/6- to pressure gauge -V.A.G 1402- and to pressure pipe.
• ‒ Attach injector connector to injector.
• ‒ Detach hose clamp -3094- from suction hose.

Continuation of delivery pressure test => Page 48-96

Vehicles with 6-cyl. 5-valve petrol engine

• ‒ → Unclip and detach top engine cover -arrows-.

• ‒ → Unscrew ribbed belt cover -arrows-.
• ‒ Pinch off suction hose with hose clamp -3094-.
• ‒ Press spring clip for connector and unplug connector from injector.
• ‒ Place drip tray in position.

• ‒ → Unscrew (arrow) pipe from expansion hose; to do so, provide support at hexagon of expansion hose.
• ‒ Screw hose of pressure gauge -V.A.G 1402- to expansion hose.
• ‒ Use corresponding adapters to connect hose from adapter set
  -V.A.G 1402/6- to pressure gauge -V.A.G 1402- and to pressure pipe.
• ‒ Attach injector connector to injector.
• ‒ Detach hose clamp -3094- from suction hose.

Continuation of delivery pressure test => Page 48-96

Vehicles with 6-cyl. diesel engine (TDI)

• ‒ Remove noise insulation for engine.
• ‒ Pinch off suction hose with hose clamp -3094-.
• ‒ Place drip tray in position.
• ‒ → Screw out banjo bolt -1-.

• ‒ → Fit V.A.G adapters as shown.

•     1 -    V.A.G 1402/2
•     2 -    V.A.G 1402/6
•     3 -    V.A.G 1402/5
•     4 -    V.A.G 1402/4
•     5 -    Pressure hose to pressure gauge V.A.G 1402

• ‒ Insert four sealing rings between adapter V.A.G 1402/2 and banjo bolt.
• ‒ Detach hose clamp -3094- from suction hose.

All vehicles with 6-cyl. engines except bi-turbo (continued)

→ Make sure lever on pressure gauge is in position -2-.

• ‒ Start engine and, if necessary, top up fluid level in reservoir.
• ‒ Turn steering wheel roughly 10 times from lock to lock.
• ‒ Then check delivery pressure.
• ‒ With engine idling, close cut-off valve -position 1- (max. 10 seconds) and take pressure reading.

Pump pressure specification (gauge pressure)

If readout does not match specification, replace vane pump.

• 6-cyl. 2-valve petrol engine => Page 48-113
• 6-cyl. 5-valve petrol engine => Page 48-121
• 6-cyl. diesel engine (TDI) => Page 48-141
• → Move lever to position -1-.
• Switch off engine.
• Remove pressure gauge.
• Connect pressure pipe/expansion hose.
• 6-cyl. 2-valve petrol engine => Page 48-71, Item 25
• 6-cyl. 5-valve petrol engine => Page 48-72, Item 3
• 6-cyl. diesel engine (TDI) => Page 48-76, Item 2

• ‒ Check hydraulic fluid level .
• ‒ Check steering system for leaks .
• ‒ Bleed steering system .