Removing and installing non-return valve (cylinder bank 2) — AUDI
Removing and installing non-return valve (cylinder bank 2) on Audi: 10 steps, engines CDUC, CDUD, CGQB, CKVB.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi Q5 (8R, 2008–2017)
- Opens: coolant
Don't miss
- Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.
📋 Procedure
- Drain coolant .
- Remove engine mounting (left-side) .
- Unscrew bolts (arrows) and remove engine support (left-side).
- Remove bolt (arrow).
- Detach non-return valve (1).
- Remove bolts (arrows).
- Release hose clip (2) and detach coolant hose.
- Detach non-return valve (1). [Note: Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.]
- Install engine support and engine mounting .
- Fill up with coolant .
Other AUDI procedures
- Checking fuel delivery rate of fuel system pressurisation pump G6 (in fuel tank) - A5 up to model year 2011, A4 up to model year 2012 (vehicles with front-wheel drive)
- Removing and installing exhaust gas temperature sender 1 G235 - vehicles with one turbocharger
- Removing and installing exhaust gas temperature sender 3 G495 - vehicles with one turbocharger
- Exploded view - silencers · 5 torque figures
- Exploded view - fuel tank · 3 torque figures
- 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
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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.