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Water pump toothed belt - remove and install — VW

Water pump toothed belt - remove and install on VW: 18 steps, engines CNXA, CSEA, CWRA, CWSA. 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.

18 steps 5 engine codes engine codes merged from 4 documented variants

🧭 Before you start

Fits: platform codes 6A1, 6A5

  • Opens: coolant
  • Special tools named: VAS 6122

🔧 Engine codes this applies to

📋 Procedure

  1. Remove air filter. Air filter - remove and install
  2. Seal all openings of the supercharged air system using sealing plugs from the Sealing plug kit (engine)VAS 6122.
  3. Drain cooling system Cooling system - drainage and replenishment.
  4. Press the unlocking pawls and remove the activated charcoal filter hose (2).
  5. Loosen the screws (arrows) and remove the crankcase ventilation line (1).
CNXA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Move the harness (1) and the cooling system hose (2) away.
  2. Release the clamps (arrows) and remove the cooling system hoses.
  3. Disconnect the power connector (2) from the Load pressure control V465.
  4. Release the electrical harness (2), the cooling system hose (4) and set them aside.
  5. Remove the screw (1) using the Torx T 30 fitting tool T10405.
  6. Move the turbocharger nozzle (3) to the left and carefully remove it upwards.
  7. Remove the screws (arrows). Remove the water pump toothed belt cover (1).
  8. Remove the screws in sequence (5 ... 1).
  9. Remove the toothed belt (1) from the respective water pump and exhaust camshaft gear.
  10. Install the toothed belt centred in the respective water pump and exhaust camshaft gear.
  11. Install the water pump (1)Water pump - remove and install.
  12. Replenish cooling system Cooling system - drainage and replenishment.
  13. Install the air filter Air filter - remove and install.

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

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Workshop data on this page last updated 20 Sep 2026.