Removing and installing engine control unit J623 with protective housing (Scirocco► 09.2008) — VW

🔧 Engine codes this applies to

📐 60 workshop diagrams for CAVA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Switch off ignition.
2. Remove wiper arms Electrical system 92. Windscreen wiper system; Removing and installing wiper arms.
3. Remove plenum chamber bulkhead General body repairs 50. Body - front; Plenum chamber bulkhead.
4. Press retaining frame down in (direction of arrow) and remove engine control unit.
5. Remove shear-head bolts (arrows) using pliers and remove locking clips.

6. Push connector locking devices in direction of (arrow), and pull connectors off.
7. Fit connectors to engine control unit and slide locking devices onto stop in direction of (arrow).
8. Fit the two locking clips over the connector and secure with new shear-head bolts (arrows).
9. Tighten shear-head bolts evenly until heads shear-head off (arrows).
10. Insert engine control unit into retaining frame and press retaining frame upwards in (direction of arrow)
11. Install plenum chamber bulkhead General body repairs 50. Body - front; Plenum chamber bulkhead.
12. Install wiper arms Electrical system 92. Windscreen wiper system; Removing and installing wiper arms.

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