Removing auxiliary heater Thermo Top V — VW
Removing auxiliary heater Thermo Top V on VW: 16 steps, 5 torque figures. 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: platform code 1F7
- Opens: fuel
Don't miss
- Danger of burn injuries.Parts of the exhaust system may be hot.Before removing exhaust system, let it cool off. — Remove exhaust pipe from silencer on auxiliary heater .
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 0.8 Nm (0.6 lb-ft) | Remove securing bolt (1 |
| 0.8 Nm (0.6 lb-ft) | Remove securing bolts (arrow |
| 0.8 Nm (0.6 lb-ft) | Remove securing nut (1 |
| 1.5 Nm (1.1 lb-ft) | Remove securing nut (1 |
| 8 Nm (5.9 lb-ft) | Remove 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
- Separate fuel line from windscreen washer reservoir.
- Remove lower front right wheel housing liner 66.
- Remove front noise insulation 50.
- Remove front bumper cover 63.
- ⚠ Danger of burn injuries.Parts of the exhaust system may be hot.Before removing exhaust system, let it cool off. — Remove exhaust pipe from silencer on auxiliary heater .
- ⚠ Danger of scalding injuries.When the engine is warm, the coolant temperature may be above 100° C. The cooling system is pressurised.If necessary, release pressure before carrying out repairs. — Clamp off coolant hoses (1) and (2) using hose clamps up to Ø 25 mm3094(3) and pull coolant hoses off auxiliary heater.
- Unscrew circulation pump V55 from heater unit.
- Loosen top of windscreen washer reservoir 92 to gain access to securing bolt.
- Remove bolt (arrow) (8 Nm ±0.8 Nm). — 8 Nm (5.9 lb-ft)
- Remove securing bolts (arrow) (8 ± 0.8 Nm) from windscreen washer reservoir. — 0.8 Nm (0.6 lb-ft)
- Pull windscreen washer reservoir out of guides (1) in direction of travel and set it aside.
- ⚠ Danger of fuel escaping.Fuel system is under pressure.Before opening system, wrap a cloth around the connection. Then release pressure by carefully loosening the connection. — Disconnect fuel line at quick-release coupling and seal fuel lines with appropriate plugs.
- ⚠ Auxiliary heater control unit J364 could be damaged.Overvoltages can occur at the connectors.First disconnect 8-pin connector. — Unplug the remaining connectors at the auxiliary heater.
- Remove securing nut (1) from auxiliary heater (2) on right longitudinal member (3).
- Remove securing nut (2) and bolt (4) from auxiliary heater (1) on right longitudinal member (3).
- Remove auxiliary heater from longitudinal member.
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.