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Removing and installing knock sensor: VW Polo 6C (CJXB, CJXC, CWVA, CWVB, …)

Step-by-step removing and installing knock sensor for the VW Polo 6C: 10 steps. 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.

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

🧭 Before you start

Fits: VW Polo 6C (2014–2017); platform code 614

🔧 Engine codes this applies to

📋 Procedure

  1. Observe safety instructions .
  2. Observe rules for cleanliness .
  3. Observe repair instructions .
  4. Remove noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
  5. Remove poly V-belt .
CJXB? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Release and pull off connector (1) on air conditioner compressor regulating valve N280.
  2. ⚠ Risk of injury caused by refrigerant.Risk of damage to air conditioner compressor, refrigerant lines and hoses.The air conditioner refrigerant circuit must not be opened.Do NOT stretch, kink or bend refrigerant lines and hoses. — Remove bolts (arrows) for air conditioner compressor.
  3. Remove air conditioner compressor with refrigerant lines connected, and tie it up towards outside.
  4. Release and pull off connector (2).
  5. Unscrew bolt (arrow) and remove knock sensor 1G61(1) from engine.

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.