TorqFix

Removing and installing engine control unit J623, CC from 11.2010 — VW

Removing and installing engine control unit J623, CC from 11.2010 on VW: 10 steps, engines CFFA, CFFB, CFFD, CFGB.

Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.

10 steps 13 engine codes

🧭 Before you start

Fits: VW Passat CC (357, 2008–2012)

🔧 Engine codes this applies to

📋 Procedure

  1. Switch off ignition.
  2. Remove plenum chamber cover General body repairs, exterior50Bulkhead; Removing and installing plenum chamber cover.
  3. Remove windscreen wiper arms Electrical system92Windscreen wiper system; Removing and installing windscreen wiper arms.
  4. Remove plenum chamber bulkhead General body repairs, exterior50Bulkhead; Assembly overview - bulkhead.
  5. Push down retaining frame in direction of (arrow) and remove engine control unit.
CFFA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Push locking devices of connectors in (direction of arrow) and pull off connectors.
  2. Fit connectors to engine control unit and slide locking devices to stop in (direction of arrow).
  3. Place engine control unit into retaining frame and push retaining frame upwards in direction of (arrow).
  4. Install plenum chamber bulkhead General body repairs, exterior50Bulkhead; Assembly overview - bulkhead.
  5. Fit windscreen wiper arms Electrical system92Windscreen wiper system; Removing and installing windscreen wiper arms.

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.