Repairing Climatronic - additional heat exchanger: VW Sharan I / SEAT Alhambra
Step-by-step repairing Climatronic - additional heat exchanger for the VW Sharan I / SEAT Alhambra: 13 steps.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Sharan I / SEAT Alhambra (7M)
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- Cooling system is pressurized when engine is warm. If necessary, release pressure before carrying out repairs.
📋 Procedure
- Remove left side wall trim 70.
- Pull connectors off rear fresh air blower V80, rear temperature flap control motor V137 and rear fresh air blower control unit J391.
- Clamp off connecting hoses close to heat exchanger using hose clamps and pull off hoses.
- Remove four bolts (arrows).
- If vehicle has 2nd evaporator, see . [Note: Cooling system is pressurized when engine is warm. If necessary, release pressure before carrying out repairs.]
- Remove left side wall trim 70.
- Pull off connector (1) and remove bolts (2).
- Pull out rear temperature flap control motor V137(3).
- Remove left side wall trim 70.
- Pull off connector (1) and remove bolt (2).
- Remove cover (2).
- Pull connector (1) off rear vent temperature sender G174.
- Turn rear vent temperature sender G174 90° and remove.
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.