Climatronic Control Module (J255) A/C Control Head

2012 Audi S4 Quattro Sedan (8K2) V6-3.0L SC (CCBA)SECTION Climatronic Control Module (J255) A/C Control Head





Climatronic Control Module (J255) A/C Control Head

Special tools, testers and auxiliary items required

Hook (3438)

In both versions ("Basis" or "Comfort") the Climatronic control module are removed and installed in the same way.

Removing

- Check the Climatronic control module coding and adaptation using the "Replace Control Unit" function of the Guided Fault Finding (if the Climatronic Control Module should be replaced). Refer to the Vehicle diagnostic tester in "Guided Fault Finding".

To prevent damage to the Climatronic control module and center console, do not pull too hard.

Do not damage surface of center console when removing (cover it if necessary).

- Turn off the ignition.

- Attach the (3438) - A - in one of the openings - B - or - C - in the Climatronic control module according to the illustration.






- Carefully pull the Climatronic Control Module in the - direction of arrow - out of center console.

The Climatronic Control Module is held in the center control brackets with clamps (left and right).

Disconnect the Climatronic Control Module connectors

- Loosen the harness connector release catch - C - for the connectors - A - and - B - by pulling the direction of the arrow - arrow -.






- Press the connector release catch - D - - arrow - and remove the connectors - A - and - B -.

Installing

Installation is carried out in the reverse order while observing the following.

When replacing the Climatronic control module be sure to pay attention to precise assignment. Refer to => [ Climatronic Control Module (J255) A/C Control Head Allocation ] Climatronic Control Module (J255) A/C Control Head Allocation and the Parts Catalog.

Mount the trim to the A/C control head on the Audi Q5.

- Clean the adhesive surface - D - on the A/C control head - A - for example with cleaning solution D 009 401 04. Refer to Electronic Parts Catalog (ETKA).






- Install the Climatronic control module - A -.

The trim piece - B - is supplied with a two-sided adhesive strip already installed - C -. Refer to Electronic Parts Catalog (ETKA).

If the trim piece - B - is going to be re-used when replacing the Climatronic control module - A -, then remove the adhesive strip - C - from the trim - B -. Clean the adhesive surface on the trim - B - as described in the instructions which came with the adhesive strip. Affix to the trim piece - B - a strip (dimension: 204 mm x 10 mm) of the two-sided adhesive strip - C - with material strength approximately 1.2 mm (for example with adhesive tape D 438 515 A1. Refer to Electronic Parts Catalog (ETKA).

- Mount the trim piece - B - with the adhesive tape - C - onto the adhesive surface - D - on the A/C control head - A - and the align it - B -.

- Press the trim piece - B - onto the surface - D -.

After replacing / installing the Climatronic control module, always perform the follow work using the Vehicle diagnostic tester in "Guided Fault Finding" function.

- Re-code (or check the coding) of the Climatronic control module.

- Perform the basic setting, Climatronic control module.

- Check DTC memory of Climatronic control module (correct the cause for any malfunctions displayed) and erase.

- Check the adaptation of the front control and display unit Climatronic control module and correct if necessary.

- Perform the Output Diagnostic Test, Climatronic control module (depending on the type of complaint).

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.