Removing and installing supplementary heater — VW
Removing and installing supplementary heater on VW: 17 steps, 1 torque figure. What to remove, what to tighten and to how many Nm, 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 B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014)
- Opens: fuel
Don't miss
- Do not separate coolant hoses that are connected to each other.
- If the Thermo Top V/fleece is not to be renewed, connect the and start the "“Unlock heater”" option under 'Guided functions'.
- Coolant circuit must be bled after supplementary heater has been installed 19Cooling system, coolant; Draining and filling coolant.
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 8 Nm (5.9 lb-ft) | Unscrew bolt (arrow |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- Switch off electrical consumers.
- Switch off ignition.
- Remove ignition key.
- Remove reservoir for window washer system, upper and lower parts Electrical system92Windscreen washer system; Removing and installing washer fluid reservoir.
- Unscrew bolt (arrow) (8 Nm). — 8 Nm (5.9 lb-ft)
- Remove front noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
- Remove exhaust tailpipe from silencer of supplementary heater .
- Clamp off coolant hoses (1) and (2) with hose clamps up to Ø 25 mm3094(3).
- Detach coolant hoses from auxiliary heater. [Note: Do not separate coolant hoses that are connected to each other.]
- Unscrew circulation pump V55 from heater unit.
- Disconnect fuel line at quick-release coupling and seal fuel lines with appropriate plugs.
- Detach connectors from auxiliary heater.
- Remove securing nut (1) from auxiliary heater (2) on right longitudinal member (3).
- Remove securing nut (1) and bolt from auxiliary heater (2) on right longitudinal member (3).
- Remove auxiliary heater from longitudinal member. [Note: If the Thermo Top V/fleece is not to be renewed, connect the and start the "“Unlock heater”" option under 'Guided functions'.]
- Coolant circuit must be bled after supplementary heater has been installed 19Cooling system, coolant; Draining and filling coolant.
- Start auxiliary heater.
Other VW procedures
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.