Removing and installing telephone/telematics control unit J526 (vehicles equipped with telephone only) — 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. Switch off all electrical equipment.
2. Remove ignition key.
3. Remove A-pillar trim (bottom right): General body repairs, interior70.
4. Remove floor covering.
5. Unplug connectors at telephone/telematics control unit J526.

6. Loosen nuts (1) (5 Nm) and detach telephone/telematics control unit J526 from bracket. — 5 Nm (3.7 lb-ft)
7. Take out the SIM card.
8. Installation is performed in reverse sequence.
9. Encode and adapt telephone/telematics control unit J526: Radio, telephone and navigation system, self-diagnosis01

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