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Air conditioning stopped cooling / no response to AC button

Q: What are the symptoms of Air conditioning stopped cooling / no response to AC button in Opel Mokka-e?

No cold air from vents. A/C does not react to control panel settings

Q: How to fix Air conditioning stopped cooling / no response to AC button in Opel Mokka-e?

Uploading updated software (ECU update) provided by the manufacturer or possibly replacing the electric compressor with a defect-free one. Massive manufacturing defect of the Stellantis group - global recall marked with the codes KGS, MF9, JTF.

in Opel Mokka-e (2019-2022)

Symptoms

No cold air from vents
A/C does not react to control panel settings

DTC error codes

KGS

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

Refrigerant: R134a Amount (g): 450-500g Oil: PAG 46 Oil (ml): 120 - 150ml

Mokka A (Wszystkie wersje)

Refrigerant: R1234yf Amount (g): 570g Oil: PAG ISO 46 YF Oil (ml): 70ml

See full specification

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