Removing and installing convenience system central control unit J393 — VW

🧭 Before you start

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

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• The connectors can only be released and disconnected once the recesses of the connector and bracket are aligned with each other precisely.
• The number of connectors depends on the vehicle equipment level.All connectors can only be fitted in one position and do not therefore have to be marked.
• The connectors can only be fitted and locked in place once the recesses of the connector (1) and the bracket (2) are positioned over one another precisely.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Switch off ignition and all electrical consumers.
2. Disengage ignition key out in position 0 (forward notch).
3. Remove glove compartment General body repairs, interior68Compartments/covers; Removing and installing glove compartment.
4. Unscrew both securing nuts (1) and remove convenience system central control unit J393 with bracket (2) from securing threads, taking connected wiring length into consideration. [Note: The connectors can only be released and disconnected once the recesses of the connector and bracket are aligned with each other precisely.]
5. Release locking lug (3) and push convenience system central control unit J393 into bracket in (direction of arrow) until recesses on connector (1) are exactly positioned over recesses (2) in bracket.

6. Pull all connectors off central control unit for convenience system J393. [Note: The number of connectors depends on the vehicle equipment level.All connectors can only be fitted in one position and do not therefore have to be marked.]
7. Open the four catches at the sides (arrows) and remove cover (1).
8. Remove convenience system central control unit J393(2) from bracket. [Note: The connectors can only be fitted and locked in place once the recesses of the connector (1) and the bracket (2) are positioned over one another precisely.]
9. Tighten securing nuts (1) to specified torque of 4.5 Nm. — 4.5 Nm (3.3 lb-ft)
10. . [Note: After renewing the convenience system central control unit J393, the convenience system central control unit's other functions, such as "“immobiliser”", "“anti-theft alarm”", "“entry and start authorisation”", "“tyre pressure monitor”" and the central locking system keys must also be adapted depending on equipment.Start by adapting the immobiliser () and continue, in any sequence, with the further functions of the convenience system central control unit J393.] [Note: It depends on the fitted optional equipment whether or not the above-mentioned adaptations can be carried out.]
11. .

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