Removing and installing operating unit, Climatronic control unit J255 — AUDI

🧭 Before you start

Fits: platform code 42

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• When replacing an operating unit, Climatronic control unit J255, attention must be paid to the exact assignment Electronic parts catalogue.

📋 Procedure

1. If the operating unit, Climatronic control unit J255 is to be replaced, interrogate the encoding and adaption of the operating unit, Climatronic control unit J255 by way of the "“Control unit replacement”" function in the "“Guided fault-finding”" routine Vehicle diagnostic, testing and information systemVAS 5051/, "Guided fault-finding" function.
2. Heed the general information .
3. Switch off the ignition.
4. Remove the right centre console side trim 68.
5. Insert a narrow screwdriver (C) through the opening in the front centre console and press back the retaining spring (B).

6. Pull the operating unit, Climatronic control unit J255(A) out of the front centre console (arrow).
7. Release the fasteners at the connector (E) and unplug this.
8. Carefully turn the operating unit, Climatronic control unit J255(F) through 180°.
9. Release the connectors (A ... D) by pressing the retainer tabs (G) and unplug the connectors.
10. On the Audi R8 GT, fit a button with no function in place of the heated rear window button if applicable Fitting a button with no function in J255 in place of the heated rear window button [Note: The Audi R8 GT is not fitted with a heated rear window Z1. To prevent activation of the Z1 actuation function in the operating unit, Climatronic control unit J255, J255 has a button with no function instead of a "“heated rear window ”" button.]
11. When replacing an operating unit, Climatronic control unit J255, attention must be paid to the exact assignment Electronic parts catalogue.
12. Fit the operating unit, Climatronic control unit J255.
13. Fit the right centre console side trim 68.
14. Perform encoding or check the encoding.
15. Implement basic setting.
16. Interrogate the event recorder (and eliminate the cause of any faults displayed).
17. Check the adaption.
18. Perform final control diagnosis if necessary.

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