TorqFix

Removing and installing supercharger — AUDI

Removing and installing supercharger on Audi: 34 steps, engines CAJA, CAKA, CAVG, CCAA. What to remove, in what order, and what to check after.

Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.

34 steps 39 engine codes engine codes merged from 11 documented variants

🧭 Before you start

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

  • Opens: coolant
  • Renewed: seals

Don't miss

  • Disregard (item 3).
  • Mark installation position of vacuum hoses for re-installation.
  • Ensure that crankcase breather connection is positioned correctly when fitting supercharger .
  • Do not reuse coolant.

📋 Procedure

  1. Remove poly V-belt for supercharger .
  2. Remove plenum chamber cover General body repairs, exterior50Bulkhead; Removing and installing plenum chamber cover.
  3. Place drip tray for workshop hoistVAS 6208 underneath.
  4. Clamp off coolant hoses (2) with hose clamps, up to 25 mm3094.
  5. Remove bolt (1).
CAJA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Release hose clips (1) and detach coolant hoses from coolant pipes at supercharger.
  2. Remove bolt (2) and press coolant pipes to the side.
  3. Unplug electrical connectors (1, 2). [Note: Disregard (item 3).]
  4. Move fuel hose (1) and hose (2) from activated charcoal filter clear at air pipe.
  5. Detach vacuum hose (3) from connection on air pipe.
  6. Remove air pipe. To do so, release hose clip (4) and clamps (arrows).
  7. Disconnect vacuum hose (1) on rear side of plenum chamber partition panel and detach vacuum connection (2) from plenum chamber partition panel.
  8. Unplug electrical connector (3) at activated charcoal filter solenoid valve 1N80 and detach vacuum hose (4).
  9. Detach activated charcoal filter solenoid valve 1N80 from bracket and move it clear to the side with hoses still attached.
  10. Unplug electrical connector (arrow) at throttle valve module J338.
  11. Unplug electrical connector (arrow) at regulating flap control unit J808.
  12. Unplug electrical connectors (1). [Note: Mark installation position of vacuum hoses for re-installation.]
  13. Disconnect vacuum hoses (4) and vacuum line (3).
  14. Move vacuum hose (2) clear and place to left side.
  15. Release fasteners (arrow) and press wiring duct (1) towards rear.
  16. Unplug electrical connector (1).
  17. Detach valve (3) for crankcase breather system from bracket.
  18. Unplug electrical connector (2) at intake air temperature sender G42/intake manifold pressure sender G71.
  19. Unplug electrical connectors (1, 2).
  20. Remove nuts (arrows) and lift off supercharger with charge air coolers.
  21. Seal openings on supercharger and all relevant ducts and hoses of the charge air system using plugs from engine bung setVAS 6122 or clean cloths.
  22. Detach noise insulation panels. [Note: Renew seals and O-rings after removal.Do not remove plugs or protective caps until you are ready to fit the relevant line.Secure all hose connections with correct type of hose clips (as original equipment) Electronic parts catalogue.]
  23. Fit noise insulation panels.
  24. Ensure that crankcase breather connection is positioned correctly when fitting supercharger .
  25. Install coolant pipes (front left) .
  26. Electrical connections and routing .
  27. Install poly V-belt for supercharger .
  28. Install plenum chamber cover General body repairs, exterior50Bulkhead; Removing and installing plenum chamber cover. [Note: Do not reuse coolant.]
  29. Fill up with coolant .

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.