Removing and installing 2nd heat exchanger switch-off valve N317 — VW
Removing and installing 2nd heat exchanger switch-off valve N317 on VW: 11 steps, 2 torque figures. What to remove, what to tighten and to how many Nm.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Sharan II / SEAT Alhambra (7N, 2010–)
- Opens: coolant
- Special tools named: 3094
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 12 Nm (8.9 lb-ft) | Unscrew bolt (2 |
| 20 Nm (15 lb-ft) | Remove nut (5 |
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
- Place drip trayVAS 6208 beneath engine.
- Remove long noise insulation General body repairs, exterior50Noise insulation.
- Unscrew bolt (2) (12 Nm). — 12 Nm (8.9 lb-ft)
- Disconnect refrigerant line (1) from block connection.
- Push protective rubber hoses (2) and (3) about 25 mm in (direction of arrow) onto refrigerant lines (1) and (4).
- Clamp the coolant hose (3) to the valve for deactivating the heat exchanger 2 N317(1) with the hose clamps up to 25 mm 3094(3094)
- Disconnect connector (4) on 2nd heat exchanger switch-off valve N317(4).
- Open clamps (2) and pull coolant hoses (3) off the 2nd heat exchanger switch-off valve N317.
- Remove nut (5) (20 Nm) and pull 2nd heat exchanger switch-off valve N317(1) off bracket. — 20 Nm (15 lb-ft)
- Install 2nd heat exchanger switch-off valve N317 in reverse order of removal.
- Replenish coolant and bleed cooling system Power unit19.
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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.