High Priority 100% confidence

A/C cooling is weak and gradually loses performance

in Audi A4 (B8) (2005-2018)

Symptoms

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

DTC error codes

No faults or low pressure faults

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A/C Technical Specifications

(B9)

Refrigerant: R1234yf Amount (g): 580g Oil: PAG ISO 46 YF Oil (ml): 110ml

(B9)

Refrigerant: R1234yf Amount (g): 480-530g Oil: PAG YF ISO 46 Oil (ml): 120 - 150ml

S4 / RS4 (B9) - Wersje z czynnikiem R134a (590g) oraz R1234yf (525g)

Refrigerant: R134a / R1234yf Amount (g): 525 / 590 ±15g Oil: ND-12 / SP-A2 / PAG46yf Oil (ml): 100 / 110ml
See full specification

Other problems in A4 (B8)

A/C cooling is weak at standstill or in traffic

High Priority

Air conditioning stopped cooling / no response to AC button

High Priority

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