Removing and installing front coolant pipe — VW
Removing and installing front coolant pipe on VW: 27 steps, engines BAR, CAYC, CFFA, CFFB. What to remove, in what order, and 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 codes 602, 604, 603
- Opens: coolant
- Renewed: gaskets
Don't miss
- Disregard (item 4).
- Disregard (items 2, 3, 4).
- Renew gaskets, seals and O-rings.Secure all hose connections with the same type of hose clips as original equipment Electronic Parts Catalogue.
🔧 Engine codes this applies to
📋 Procedure
- Drain coolant .
- Remove air filter housing .
- Remove oil filter bracket with engine oil cooler
- Country-specific version for cold countries: Disconnect electrical connector (2).
- Remove crankcase breather hose (1), press release buttons for this.
- Pull off vacuum hose (arrow).
- Unscrew bolt (3), swing air pipe with inlet connection to rear and pull off from turbocharger. [Note: Disregard (item 4).]
- Unclip wiring harness from retainer (arrow).
- Free wiring harnesses (arrows) and electrical connector (1) at bracket.
- Remove air intake hose. To do this, loosen hose clips (1, 2).
- Remove bolts (arrows).
- Free electrical wiring and hoses on left air pipe using removal lever80- 200.
- Loosen hose clip (1) and remove left air pipe.
- Disconnect coolant hoses and free them, loosening hose clips (1) to do so. [Note: Disregard (items 2, 3, 4).]
- Remove electrical connector (2) for Hall sender G40 from retainer and separate.
- Remove bracket from front coolant pipe.
- Remove coolant hoses, loosening hose clips (1) and (3) to do so.
- Undo bolts (arrows) and pull front coolant pipe off cylinder block towards the left. [Note: Renew gaskets, seals and O-rings.Secure all hose connections with the same type of hose clips as original equipment Electronic Parts Catalogue.]
- Clean or smoothen sealing surface for O-ring.
- Moisten O-ring with coolant and slide onto front coolant pipe.
- Push front coolant pipe into cylinder block.
- Installing intake hoses with screw-type clips .
- Install charge air pipe .
- Install air pipe with inlet connection.
- Install oil filter bracket with engine oil cooler .
- Install air filter housing .
- Replenish coolant .
Other VW procedures
- Removing and installing main catalytic converter (right-side)
- Renewing oil seals for auxiliary drives – VW Touareg I 4.2 BAR
- Removing and installing rear left coolant pipes – VW 4.2 BAR
- Assembly overview - camshafts timing chains
- Camshaft timing chains - exploded view
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
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.