High Priority 94% confidence

Hissing from vents and slow loss of refrigerant

in Volkswagen Passat (2010-2024)

Symptoms

  • Weak cabin cooling
  • Hissing from vents
  • Frost or ice on pipes under the hood

DTC error codes

Brak

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A/C Technical Specifications

B9 (CJ5)

Refrigerant: R1234yf Amount (g): 460g Oil: PAG ISO 46 YF Oil (ml): b.d.ml

(B8) kompresor Denso 6SES14C + 6SAS14

Refrigerant: R1234yf Amount (g): 460g Oil: N 052 535 A0/B0 PAO 68 AA1 Oil (ml): 110ml

(B8) kompresor MAHLE/Delphi 6CVC140 + Visteon

Refrigerant: R1234yf Amount (g): 460g Oil: N 052 535 A0/B0 PAO 68 AA1 Oil (ml): 120ml
See full specification

Other problems in Passat

The air conditioning does not cool and irregular operation of air conditioning

High Priority

Air conditioning stopped cooling / no response to AC button

High Priority

Slow loss of refrigerant or A/C system leakage

High Priority

Cabin blower does not work or works only on maximum speed

High Priority

Unusual noise and metallic grinding when A/C is on

High Priority

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