Removing and installing airbag control unit -J 234- from week 36.99 onwards — AUDI

🧭 Before you start

Fits: Audi A6 C5 (4B)

🔩 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 earth strap/wire.
2. Remove centre console (front) .
3. Remove connecting pieces for air ducts to footwell vents (rear right and left).
4. Unfasten cable tie (4).
5. Unscrew nuts (3) (3x).

6. Tightening torque: 6 Nm — 6 Nm (4.4 lb-ft)
7. Pull out control unit (1).
8. Release retainer on electrical connector (2).
9. Pull electrical connector (2) out of control unit (1).
10. Detach control unit. [Note: Re-code if control unit is renewed.After connecting battery, remember to check vehicle equipment (radio, clock, electric window regulators) according to Workshop Manual and/or Owner's Manual.If airbag warning lamp (K75) indicates a fault following installation, use vehicle diagnostic, testing and information systemVAS 5051 A to erase and re-interrogate fault memory.]

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
• Installing repair kit for headlight range control motor – Audi
• Renewing fog light bulb - Audi A4
• Removing and installing radiator fan V7 (right side) – Audi
• Checking exhaust gas temperature sender – Audi A4 B5 2.7 ASJ
• Dismantling and assembling selector lever – Audi A6 C5