Removing and installing map-controlled engine cooling system thermostat F265 — VW
Removing and installing map-controlled engine cooling system thermostat F265 on VW: 18 steps, engines BLR, BLX, BLY.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Passat B6 (3C, 2005–2010); platform code 1F7
- Opens: coolant
- Renewed: o-ring
Don't miss
- Do not open air conditioning system!
- Install coolant hose (2); retaining clip (1) must engage.
📐 43 workshop diagrams for BLR
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Remove engine cover panel.
- Disconnect earth strap at battery with ignition switched off Electrical system27Disconnecting and reconnecting battery.
- Remove alternator Electrical system27Alternator.
- Remove air conditioner compressor from ancillaries bracket Heating, air conditioning system87Removing and installing air conditioner compressor. Secure it to body using wire. [Note: Do not open air conditioning system!]
- Drain coolant .
- Remove coolant hose (2) by pulling out retaining clip (1).
- Remove ancillaries bracket, bolts (1….6).
- Pull off connector (1) and remove map-controlled engine cooling system thermostat F265(arrows).
- Clean sealing surface for O-ring.
- Renew O-ring and moisten it with coolant.
- Install map-controlled engine cooling system thermostat F265(arrows).
- Install coolant hose (2); retaining clip (1) must engage.
- Install ancillaries bracket Heating, air conditioning system87Ancillaries bracket for air conditioner compressor.
- Install alternator Electrical system27Alternator.
- Install air conditioner compressor Heating, air conditioning87Removing and installing air conditioner compressor.
- Install poly V-belt .
- Fill coolant system with coolant .
- Observe required procedures after connecting battery Electrical system27Disconnecting and reconnecting battery.
Ask TorqFix about your VW BLR — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
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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.