Removing and installing relay and fuse holder BSB in electronics box — AUDI

🧭 Before you start

Fits: Audi Q3 (8U, 2011–2018); platform code 84

Don't miss

• Mark assignment of electrical wiring at screw connections for re-installation.

📋 Procedure

1. Disconnect earth cable from battery with ignition switched off .
2. Press both tabs in direction of (arrow) and remove cover for electronics box (engine compartment, left-side).
3. Mark assignment of electrical wiring at screw connections for re-installation.
4. Cut through cable tie (8).
5. Release retaining clip (2) and swivel wire retainer (1) to the side.

6. Unscrew nuts (3 ... 7) and pull electrical wires out of clamps.
7. Remove bolt (arrow).
8. Take relay and fuse holder B out of electronics box (engine compartment, left-side).
9. Fit relay and fuse holder B onto electronics box in engine compartment. Tighten securing bolt (centre); at the same time connectors will slide on.
10. Fit and secure electrical wiring to main fuse holder on electronics box (engine compartment, left-side) according to markings made earlier.
11. Connect battery. Steps required .

Other AUDI procedures

• Removing and installing toothed belt – Audi · 56 torque figures
• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures