Upper left coolant pipe on cylinder head cover — VW
Upper left coolant pipe on cylinder head cover on VW: 10 steps, engines CUAA. What to remove, in what order, and what to check after.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Passat B8 (3G, 2014–)
🔧 Engine codes this applies to
📋 Procedure
- Remove engine cover panel .
- Open filler cap (5) on coolant expansion tank.
- Clamp off left and right coolant hoses using hose clamps up to 25 mm3094.
- Open clip, and pull centre coolant hose off water pipe (1).
- Unscrew bolts (arrows) for coolant pipe (1).
- Pull heat protection hose towards rear.
- Clamp off coolant hose (2) with hose clamps up to 25 mm3094.
- Open clip (3), and pull coolant hose off turbocharger.
- Fit engine cover panel .
- Replenish coolant .
Other VW procedures
- Removing and installing engine control unit J623 (with protective housing)
- Removing and installing front right coolant pipe – VW
- Removing and installing exhaust gas recirculation control motor 2V339
- Removing and installing injector for reducing agent N474 – VW
- Removing and installing exhaust gas pressure sensor 1G450
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 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.