Removing and installing telephone and telematics control unit J526 — AUDI

🧭 Before you start

Fits: Audi A4 B6/B7 (8E)

Don't miss

• Seat belt at seat frame does not have to be unfastened.

📋 Procedure

1. Switch off all electrical equipment.
2. Remove ignition key.
3. Activate the service mode for telephone/telematics control unit J526.
4. Remove A-pillar trim: General body repairs, interior 70Trim.
5. Remove front seat (right-side) General body repairs, interior72Front seats. [Note: Seat belt at seat frame does not have to be unfastened.]

6. Fold back floor covering: General body repairs, interior70Trim.
7. Release cover for electronics box (arrows) and remove cover.
8. Detach electrical connectors (2) at telephone/telematics control unit J526(1).
9. Remove telephone/telematics control unit J526(1) from electronics box.
10. Take out telematics SIM card .
11. Installation is performed in reverse sequence.
12. Fit new emergency battery for telematics A16 (only if unit has been renewed).
13. Perform coding and adaption .
14. Deactivate the service mode for telephone/telematics control unit J526.

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