Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
CLIMATRONIC Control Module
Different versions of the Climatronic Control Module -J255- depending on the time of production, the equipment level and vehicle version. Pay attention to the correct allocation; if this is not OK, then this can lead to DTC entries and complaints regarding the A/C system control, refer to CLIMATRONIC CONTROL MODULE (installation of the different versions of the Climatronic control module).
Removing
-- Check coding and adaptation of Climatronic control module via the "Replace control module" function of Guided Fault Finding (in the event that Climatronic control module is to be replaced) using Vehicle Diagnosis, Testing and Information System VAS 5051.
-- Switch off ignition.
On vehicles without Radio-Navigation system or without radio with large control panel
-- Remove the trim -A- under the Climatronic control module in the instrument panel and the radio -B-). Refer to Removal and Installation and Removal and Installation .
-- Carefully lift connecting rib -A- to disengage lugs -B-.
-- Reach into center console from above (and below) and disengage Climatronic control module -C- from center console.
On vehicles with Radio-Navigation system or with a radio with large control panel
-- Remove radio or radio navigation system. Refer to Removal and Installation .
-- Remove the trim -B- above theClimatronic control module) in the center of the instrument panel. Refer to Removal and Installation .
Remove the trim -A- under the Climatronic control module only after removing it. Refer to Removal and Installation .
-- Carefully lift connecting rib -A- to disengage lugs -B-.
-- Reach into center console from above (and below) and disengage Climatronic control module -C- from center console.
-- Disconnect connectors -A- to -D- by pressing catches -E- and remove them.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.