Removing and installing engine control unit J623 with protective housing (Passat 11.2010▶) — VW

🧭 Before you start

Fits: VW Passat B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014)

• Special tools named: locking bar

🔧 Engine codes this applies to

📋 Procedure

1. Switch off ignition.
2. Remove wiper arms Electrical system92Windscreen wiper system; Removing and installing wiper arms.
3. Remove plenum chamber cover General body repairs50Front body, plenum chamber cover.
4. Press retaining frame down in (direction of arrow) and remove engine control unit.
5. Unscrew shear-head bolts (arrows) using pliers.

6. Insert screwdriver between both locking plates (arrow).
7. Carefully press screwdriver in direction of (arrow) and bend locking bar (1) upwards at the same time.
8. Bend locking bar (1) in direction of (arrow) until it can be pulled off connectors.
9. Push connector locking devices in (direction of arrow) and pull off connector.
10. Fit connectors to engine control unit and slide locking devices to stop in direction of (arrow).
11. Fit locking bar (1) onto connectors and press it in direction of (arrow).
12. Guide pin (2) to stop into hole on engine control unit.
13. Secure locking bar with new shear-head bolts to engine control unit (arrows).
14. Tighten shear-head bolts evenly until heads shear-head off (arrows).
15. Insert engine control unit into retaining frame and press retaining frame upwards in (direction of arrow).
16. Fit plenum chamber cover General body repairs50Front body, plenum chamber cover.
17. Fit wiper arms Electrical system92Windscreen wiper system; Removing and installing wiper arms

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