Removing and installing regulating valve - vehicles with 6.0 ltr. (V12) engine — AUDI

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

Don't miss

• Mark the installation position of fuel hoses.
• Secure all hose connections with the correct version of spring-type clips (same as original equipment) Electronic parts catalogue.Fit cable tie in the original position when installing.
• Connect fuel hoses according to markings and make sure that they are not twisted.
• Bleed fuel system 23Performing first fuel filling after installing high-pressure pump.

🔧 Engine codes this applies to

📋 Procedure

1. Release clips (3) and unclip fuel lines (2).
2. Unscrew bolts (1, 4, 5, 8) and nut (7).
3. Detach fuel filter (9) and move clear to one side (leave fuel hoses connected).
4. Remove bracket (6) with clips.
5. Lay a clean cloth under the separating points to catch escaping fuel.

6. ⚠ The fuel can become extremely hot. This can cause injuries.In extreme cases the fuel lines and the fuel can reach a temperature of 100 °C on vehicles with common rail engine, even after the engine is switched off. Allow the fuel to cool down before disconnecting the lines - danger of scalding.Wear protective gloves.Wear safety goggles.Risk of injury - fuel system operates under high pressure.To reduce the pressure in the fuel system, wrap a clean cloth around the connection and carefully loosen the connection. — Cut through cable tie and remove foam retainer (1) at regulating valve.
7. Mark the installation position of fuel hoses.
8. Detach fuel hoses (2, 3, 4, 5) at regulating valve (6) and remove regulating valve.
9. Repeat procedure at regulating valve (7). [Note: Secure all hose connections with the correct version of spring-type clips (same as original equipment) Electronic parts catalogue.Fit cable tie in the original position when installing.]
10. Connect fuel hoses according to markings and make sure that they are not twisted.
11. Bleed fuel system 23Performing first fuel filling after installing high-pressure pump.

Other AUDI procedures

• Removing and installing Hall sender G40
• Removing and installing pressure control valve for crankcase breather system
• Removing and installing pressure differential sender G505 or pressure differential sender 2G524
• Removing and installing fuel pump G23, vehicles with 3.0 ltr. (V6) or 4.2 ltr. (V8) engine up to 05.2010
• Checking hydraulic valve compensation elements – Audi A6 C6
• Removing and installing toothed belt – Audi · 56 torque figures
• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures