Removing and installing steering column electronics control unit J527, version with mechanical ignition lock — AUDI

🧭 Before you start

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

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• Return ring with slip ring must be removed/installed in centre position (wheels in straight ahead position).
• Make sure all electrical connectors are properly engaged.

📋 Procedure

1. If control unit is to be renewed, select the "“Replace control unit”" function for appropriate control unit in . [Note: Return ring with slip ring must be removed/installed in centre position (wheels in straight ahead position).]
2. Move steering wheel down and to rear as far as possible, making use of full range of steering column adjuster.
3. Remove airbag (driver side) General body repairs, interior69Airbag (driver side); Removing and installing airbag unit with igniters.
4. Remove steering wheel Running gear, axles, steering48Steering wheel; Removing and installing steering wheel.
5. Remove trim for steering column switch module General body repairs, interior68Shelves / trim panels; Exploded view - steering column trim.

6. Pull out connector locking element (4), press down release mechanism and unplug electrical connector (3).
7. ⚠ Risk of irreparable damage to electronic components due to static discharge.Before disconnecting the electrical connection, the mechanic must discharge static by briefly touching striker plate for door or similar. — Pull out connector locking element (1), press down and unplug electrical connector (2).
8. Apply screwdriver (7) at retaining hook (6), as shown in illustration, and carefully release electrical connectors (1, 3, 4, 5).
9. Remove bolts (arrows).
10. Detach steering column electronics control unit J527(item 2) from steering column switch module.
11. Make sure all electrical connectors are properly engaged.
12. Install trim for steering column switch module General body repairs, interior68Shelves / trim panels; Exploded view - steering column trim.
13. Install steering wheel Running gear, axles, steering48Steering wheel; Removing and installing steering wheel.
14. Install airbag (driver side) General body repairs, interior69Airbag (driver side); Removing and installing airbag unit with igniters.
15. After renewing return ring with slip ring, perform calibration of steering angle sender G85 in "“Guided Functions”" mode .

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