Removing and installing fuse holder BSB in engine compartment electronics box — AUDI

🧭 Before you start

Fits: Audi A4 B8 (8K, 2007–2015)

Don't miss

• Disregard (item 1).

📋 Procedure

1. With ignition switched off, disconnect earth cable at battery .
2. Remove filler neck for washer fluid reservoir .
3. Remove bolts (arrows) and detach cover for engine compartment electronics box. [Note: Disregard (item 1).]
4. Release catches (arrows A) and remove engine control unit (arrow B).
5. Unplug electrical connector (2) if fitted.

6. Unplug electrical connectors (4) and unfasten electrical wire (3).
7. Release catches (arrow) and detach fuse holder B (item 1).
8. Disengage engine wiring harness at electronics box and move clear.
9. Unfasten electrical wire (5).
10. Pull relays (3) and control units (4) out of fuse holder B.
11. Release retaining clip (arrow), press out fuse carrier (2) towards rear and disengage.
12. Release retaining clip and press out additional fuse holder (1) towards rear.
13. Release retaining clips (arrows) and press relay carrier (2) towards rear out of holder (1).
14. Take fuse holder B out of engine compartment electronics box.
15. Install filler neck for washer fluid reservoir .
16. Connect battery. Steps required .

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