Draining coolant — VW
Draining coolant on VW: 12 steps, engines AVQ, AXW, AXX, BGU. 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 Polo 6R (2009–2014), VW Touran I (1T, 2003–2015), VW Passat B6 (3C, 2005–2010), VW Golf VI (5K, 2008–2013), VW Golf Cabriolet (517, 2011–2016), VW Passat B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014); platform code 521
- Opens: coolant
Don't miss
- To prevent ingress of coolant, seal union on turbocharger using a clean plug from engine sealing plug setVAS 6122
- Observe environmental regulations for disposal.
🔧 Engine codes this applies to
📋 Procedure
- ⚠ Hot steam/hot coolant can escape - risk of scalding.The cooling system is under pressure when the engine is hot.Cover filler cap on expansion tank with a cloth and open carefully to dissipate pressure. — Open filler cap (1) on coolant expansion tank.
- Remove noise insulation:
- Place drip tray for workshop hoistVAS 6208 beneath engine.
- Remove air hose, loosen hose clips (1) and (2) for this. [Note: To prevent ingress of coolant, seal union on turbocharger using a clean plug from engine sealing plug setVAS 6122]
- Pull off coolant hose (arrow) from coolant circulation pump 2V178.
- Disconnect lower coolant hose from radiator, lift retaining clip (arrow) when doing this, and drain off coolant.
- Pull off coolant hoses (2) from coolant circulation pump 2V178.
- Disconnect lower coolant hose from radiator, loosen hose clamp (arrow) to do so and then drain off coolant.
- Open clamp (arrow) for this.
- Disconnect lower coolant hose on right from radiator, loosen hose clamp (arrow) to do so and then drain off coolant.
- Disconnect coolant hose from oil filter housing, loosen hose clamp (arrow) to do so and then drain off remaining coolant.
- To drain coolant from engine, also remove coolant hose from engine oil cooler (arrow). [Note: Observe environmental regulations for disposal.]
Other VW procedures
- Checking current draw of fuel pump – VW Golf V / Jetta
- Checking for internal leaks – VW Touareg I
- Assembly overview - oil pump, sump
- F - Re-pressing sender wheel · 11 torque figures
- Golf5 1.9 TDi (BXE,BXF,BRU,BJB,BKC,BLS) & Caddy 1.9 Tdi/2.0 SDi
- 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.