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Removing and installing throttle valve moduleGX3 — VW

Removing and installing throttle valve moduleGX3 on VW: 20 steps, engines CHHA, CHHB, CHPA, CHYA. 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.

20 steps 40 engine codes engine codes merged from 26 documented variants

🧭 Before you start

Fits: platform codes AU1, BX5

  • Renewed: seal

Don't miss

  • Disregard (item 1).
  • After throttle valve control module has been replaced, it must be re-adapted to engine control unit J623. Use for this.

🔧 Engine codes this applies to

CHHACHHBCHPACHYACHYBCHZBCHZCCHZDCJSACJSBCJSCCJXACJXBCJXCCJZACJZBCJZCCJZDCMBACNSACNSBCNTACPKACPLACPPACPRACPTACPVACPVBCPWACUKBCUKCCULACULCCWVACWVBCXBACXBBCXCACXCB

📋 Procedure

  1. Release fastener (arrow) and remove cover (2).
  2. Remove engine cover panel .
  3. Remove bolts (1, 3).
  4. Free coolant hose (2).
  5. Release fastener (arrows) and detach air duct (top section) (1).
CHHA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove bolt (arrow) on both sides.
  2. Unclip air duct (bottom section) (1) and detach.
  3. Remove noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
  4. Release hose clip (2) and detach air hose from charge air cooler. [Note: Disregard (item 1).]
  5. Free coolant hose (3).
  6. Pull connector (1) off charge pressure sender G31.
  7. Remove bolts (arrows).
  8. Release hose clip (2) on air hose and pull air hose off throttle valve moduleGX3.
  9. Remove air intake hose downwards.
  10. Detach electrical connector (1) from throttle valve module.
  11. Unscrew bolts (arrows) on throttle valve module from underneath and detach throttle valve module.
  12. Install in reverse order.
  13. Clean sealing surface for O-ring.
  14. Renew seal.
  15. After throttle valve control module has been replaced, it must be re-adapted to engine control unit J623. Use for this.

Other VW procedures

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.