Removing and installing high-voltage wiring harness for drive motor — VW

🧭 Before you start

Fits: VW Passat B8 (3G, 2014–)

• Renewed: safety cover with seal, seal

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• To ensure complete accessibility of the bolts (3), the following measures are necessary.
• Renew safety cover with seal after each removal.Renew seal after each removal.

🔧 Engine codes this applies to

📋 Procedure

1. Remove bracket of charging unit 1 for high-voltage batteryAX4.
2. Remove coolant pipes (left-side) .
3. Remove drive shaft heat shield Running gear, axles, steering40Drive shaft; Assembly overview - drive shaft.
4. Remove selector lever cable 34Selector mechanism; Removing and installing selector lever cable.
5. Separate high-voltage wire for high-voltage battery charging unit P25(1) from power and control electronics for electric driveJX1.

6. Pull out connector lock (3)(arrow A) to do this.
7. Push locking mechanism (4) in (direction of arrow B), and pull off connector (1) approx. 5 mm until it is engaged in second locking detent.
8. Push locking mechanism (5) in (direction of arrow D), and pull connector off connector mounting (2)(arrow C). [Note: To ensure complete accessibility of the bolts (3), the following measures are necessary.]
9. Only release plenum chamber cover in area of bolt (3); do not remove completely General body repairs, exterior50Bulkhead; Removing and installing plenum chamber cover.
10. Only release bulkhead in area of bolt (3); do not remove completely General body repairs, exterior50Bulkhead; Removing and installing bulkhead.
11. Unscrew bolts (2).
12. Release catch (arrow A).
13. Remove cover (1) in direction of (arrow B) from power and control electronics for electric driveJX1.
14. Release catches (arrows).
15. Remove safety cover (1).
16. Remove bolts (2 … 5).
17. Pull out high-voltage wiring harness for drive motorPX2(item 1), and lay it to one side.
18. Fit cover back in place on power and control electronics for electric driveJX1, and secure it with two bolts.
19. Disconnect electrical connector (1).
20. Unscrew bolts (3, 5, 6).
21. Remove cover (4). The 2-pin connector T2kp(item 2) will be disconnected while doing this.
22. Unscrew bolts (1, 3, 4).
23. Pull out high-voltage wiring harness for drive motorPX2(items 2, 5).
24. Move clear high-voltage wiring harness, and remove it upwards.
25. Installation is carried out in the reverse order; note the following: [Note: Renew safety cover with seal after each removal.Renew seal after each removal.]

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