Removing and installing pre-fuse on left in luggage compartment — VW

🧭 Before you start

Fits: VW Phaeton (3D)

🔩 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. Disconnect battery .
2. Remove the battery on left in luggage compartment .
3. Pull connector off battery isolation relay (arrow).
4. Remove hexagon nuts (1) of battery isolation relay.
5. Carefully remove battery isolation relay from retainer and lay to side.

6. Unscrew hexagon nuts (arrows).
7. Separate clip (1) from wire (2).
8. Carefully pull out to side pre-fuse box (arrows) with wiring connected.
9. Press locking lugs (arrows) of pre-fuse box outwards and raise both covers.
10. Press locking lug (arrow) inwards and slightly raise the retainer.
11. Press locking lugs inwards (arrows) and remove retainer with both covers.
12. Tighten securing nut of pre-fuse box (arrow) to 6 Nm. — 6 Nm (4.4 lb-ft)

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