What are the symptoms of Slow loss of refrigerant or A/C system leakage in Citroën C3 III (SX)?

No cold air from vents. Weak cabin cooling. Vibrations or humming after turning on A/C

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Slow loss of refrigerant or A/C system leakage

Q: How to fix Slow loss of refrigerant or A/C system leakage in Citroën C3 III (SX)?

Replace the damaged high-pressure A/C pipe (OEM 9810065480 or equivalent). Prior to installing the new line, fit a split rubber protective sleeve over the critical contact area and secure it with heavy-duty cable ties.

in Citroën C3 III (SX) (2009-2024)

Symptoms

No cold air from vents
Weak cabin cooling
Vibrations or humming after turning on A/C

DTC error codes

P0532

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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

Aircross

Refrigerant: R1234yf Amount (g): 400g Oil: PAG YF PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 110ml

Aircross

Refrigerant: R134a Amount (g): 425g Oil: PAG PAO 68 AA1 lub PAG ISO 46 Oil (ml): 110ml

(IV)

Refrigerant: R1234yf Amount (g): 425g Oil: PAG YF PAO 68 AA1 lub PAG ISO 100 YF Oil (ml): 135ml

See full specification

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