Removing and installing electronics box (engine compartment, left-side) - vehicles up to 05.2008 — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

Don't miss

• Exact assignment of electronics box in engine compartment can be found in applicable current flow diagram .

📋 Procedure

1. Remove air cleaner housing: vehicles with petrol engine 24; vehicles with TDI engine 23.
2. Remove battery mounting .
3. With ignition switched off, disconnect earth cable at battery .
4. Pull out 6-position relay carrier under electronics box in engine compartment (arrow).
5. Press clips in direction of (arrow) and remove cover for engine compartment electronics box.

6. Press both tabs in direction of (arrow) and remove cover for electronics box (engine compartment).
7. Unscrew bolt (arrow).
8. Take relay and fuse holder BSB out of electronics box (engine compartment).
9. Move relay and fuse holder BSB to one side (with wiring connected).
10. Release retaining tabs (arrows).
11. Slide out 26-pin connector (1) and 40-pin connector (2) at electronics box (engine compartment).
12. Unscrew nuts (1) and (2).
13. Lift out electronics box (engine compartment) (3). [Note: Exact assignment of electronics box in engine compartment can be found in applicable current flow diagram .]
14. Install fuse holder BSB.
15. Install battery mounting .
16. Connect battery. Steps required .
17. Install air cleaner housing: vehicles with petrol engine 24; vehicles with TDI engine 23.

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