Removing and installing vacuum pump (12-cylinder TDI engine) — AUDI

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

• Renewed: o-rings, o-ring

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• Some vacuum hoses have a push-on connection. In this case, use suitable pliers to release hose clip.
• Take care not to damage the vacuum hose. The vacuum hose must be renewed if it is damaged. — Remove bolts from sealing flange (1) of vacuum pump.
• Renew O-rings and seal.Pay attention to correct installation position.
• Renew O-ring. Some vacuum hoses have a push-on connection. In this case, slide new hose clip over vacuum hose before fitting. Close new hose clip using suitable pliers.
• Take care not to damage the vacuum hose. The vacuum hose must be renewed if it is damaged. — With vacuum hose connected, fasten hose clip using suitable pliers.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Carefully detach engine cover panel.
2. Remove plenum chamber partition panel 50.
3. Unplug electrical connector at engine control unit.
4. Push wiring harness to one side.
5. Disconnect vacuum hose (arrow) from pump. [Note: Some vacuum hoses have a push-on connection. In this case, use suitable pliers to release hose clip.]

6. ⚠ Take care not to damage the vacuum hose. The vacuum hose must be renewed if it is damaged. — Remove bolts from sealing flange (1) of vacuum pump.
7. Detach vacuum pump. [Note: Renew O-rings and seal.Pay attention to correct installation position.]
8. Turn drive lugs of vacuum pump so they engage in slots in camshaft when vacuum pump is installed.
9. Attach vacuum pump to sealing flange and tighten bolts (1) to 9 Nm. — 9 Nm (6.6 lb-ft)
10. Fit vacuum hose (arrow) onto (or into) pump connection.
11. Secure vacuum hose (arrow) to pump with bolt. [Note: Renew O-ring. Some vacuum hoses have a push-on connection. In this case, slide new hose clip over vacuum hose before fitting. Close new hose clip using suitable pliers.]
12. ⚠ Take care not to damage the vacuum hose. The vacuum hose must be renewed if it is damaged. — With vacuum hose connected, fasten hose clip using suitable pliers.
13. Install wiring harness for engine control unit.
14. Plug in electrical connector at engine control unit.
15. Install plenum chamber partition panel 50.
16. Install engine cover panel.

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