Removing and installing power and control electronics for electric driveJX1 — VW

🧭 Before you start

Fits: platform code BE1

• Opens: coolant
• Renewed: safety cover of power, bolts for cover of power

Don't miss

• Raise vehicle in order to ease access to the coolant hoses, and remove them from below the vehicle.
• It may be necessary to readapt the immobiliser after the power and control electronics for electric driveJX1 has been renewed.

🔩 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. De-energise high-voltage system .
2. Remove motor cover panel .
3. Remove noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
4. Drain coolant .
5. Reconnect batteryAElectrical system27Disconnecting and reconnecting battery. [Note: The connector on power and control electronics for electric driveJX1 and the connector on the charging unit 1 for high-voltage batteryAX4 are identical. If both connectors are disconnected, there is a risk of interchanging them when reconnecting. Mark connectors accordingly before disconnecting them.]

6. Release connector locking mechanism (1) in (direction of arrow A).
7. Pull off connector (2) in (direction of arrow B).
8. Unscrew bolts (2) from cover (1).
9. Pull out securing element (3) on connector of high-voltage cable (2) for charging unit 1 for high-voltage batteryAX4 in (direction of arrow A).
10. Press locking mechanism (4).
11. Pull connector of high-voltage cable (2) for charging unit 1 for high-voltage batteryAX4 off power and control electronics for electric driveJX1(1).
12. Remove cover (1).
13. Press catches (3) in direction of arrows (A), (B) and (C), respectively.
14. Unclip catches (2) upwards.
15. Remove safety cover (1).
16. Unscrew bolts (1) and (2).
17. Unscrew bolts (1) and (2).
18. Pull out high-voltage wiring harness for high-voltage batteryPX1(4) and high-voltage wiring harness for drive motorPX2(3).
19. Fit cover on power and control electronics for electric driveJX1.
20. Remove bolt (1).
21. Remove potential equalisation line (2).
22. Unclip cover (1)(arrow A) and (arrow B).
23. Unscrew nuts (2) and (3).
24. Remove battery positive cable (1) and battery negative cable (4).
25. Remove bolts (1) for power and control electronics for electric driveJX1(2). [Note: Raise vehicle in order to ease access to the coolant hoses, and remove them from below the vehicle.]
26. Release clips (1) in (direction of arrow A).
27. Pull off coolant hoses (2) in (direction of arrow B).
28. Remove power and control electronics for electric driveJX1 upwards.
29. Renew safety cover of power and control electronics for electric driveJX1 after it has been removed.
30. Renew bolts for cover of power and control electronics for electric driveJX1 after they have been removed.
31. Screw in bolts for cover.
32. Tighten bolts in sequence (5), (6) and (1). The remaining bolts can be tightened in any sequence.
33. Commission high-voltage system . [Note: It may be necessary to readapt the immobiliser after the power and control electronics for electric driveJX1 has been renewed.]
34. Adapting immobiliser .

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