Draining cooling system (vehicles with two heat exchangers) — VW
Draining cooling system (vehicles with two heat exchangers) on VW: 10 steps, engines CGNA, CGRA, CMTA.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Touareg II (7P, 2010–2018)
- Opens: coolant
📋 Procedure
- If cooling system is filled, drain coolant .
- Close coolant expansion tank.
- Remove front left wheel 44.
- Remove front left wheel housing liner 66.
- Open clips (A ... D) and pull off coolant hoses.
- Extend the line (C) with a suitable hose (1) so that it ends in drip tray for workshop hoistVAS 6208.
- Apply maximum air pressure of 1 bar in line (D) by means of pneumatic cartridge gun(2) until circuit is completely drained.
- Fit dummy plugs (3) as shown and extend line (B) with a suitable hose (1) so that it ends in drip tray for workshop hoistVAS 6208.
- Apply maximum air pressure of 1 bar in line (A) by means of pneumatic cartridge gun (2) until circuit is completely drained.
- Re-attach coolant hoses and secure with clips.
Other VW procedures
- Renewing valve stem seals with cylinder head removed – VW CDLJ
- Removing and installing fuel delivery unit and fuel gauge senderG · 1 torque figures
- Removing and installing radiator module – VW 3.0 TDI
- Removing and installing drive chain for valve gear – VW
- Removing and installing drive chain for auxiliary drives · 1 torque figures
- 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.