Removing and installing coolant circulation pump 2V178, Golf, Golf Plus, Golf Cabriolet, Passat, Touran — VW
Removing and installing coolant circulation pump 2V178, Golf, Golf Plus, Golf Cabriolet, Passat, Touran on VW: 11 steps, engines CAYB, CAYC.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Touran I (1T, 2003–2015), VW Passat B6 (3C, 2005–2010), VW Golf VI (5K, 2008–2013), VW Passat B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014); platform code 521
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- Danger of injury; the radiator fans can run at any time.Even if ignition is switched off, radiator fans can run at any time, e.g. because of accumulated heat in the engine compartment. — Remove bolts (arrows).
- Disregard (item 1, 3).
📐 80 workshop diagrams for CAYB
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Remove noise insulation:
- Remove air hose, loosen hose clips (1) and (2) for this.
- ⚠ Danger of injury; the radiator fans can run at any time.Even if ignition is switched off, radiator fans can run at any time, e.g. because of accumulated heat in the engine compartment. — Remove bolts (arrows).
- Undo hose clip (2) and push right air duct to right. [Note: Disregard (item 1, 3).] [Note: Place a cloth underneath coolant circulation pump 2V178 to absorb escaping coolant.]
- Clamp off coolant hoses with hose clamps 3094 and remove; to do this, loosen hose clips (3).
- Disconnect electrical connector (2).
- Undo bolt (1) and remove coolant circulation pump 2V178. [Note: Ignore (arrow).] [Note: Hose connections and air intake pipes and hoses must be free of oil and grease before installation.Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic Parts Catalogue.]
- Install air pipe.
- Installing intake hoses with screw-type clips.
- Install noise insulation:
- Check coolant level .
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Ask about your VW CAYB — free → or sign up free to see the drawingsOther VW procedures
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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.