High Priority 98% confidence

Unusual noise and metallic grinding when A/C is on

in Audi A6 (C7) (2012-2022)

Symptoms

  • Weak cabin cooling
  • Clicking or rattling behind dashboard
  • Dark sludge or metal shavings in system

DTC error codes

None or low pressure faults

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A/C Technical Specifications

(C8)

Refrigerant: R1234yf Amount (g): 500-550g Oil: PAG YF ISO 46 Oil (ml): 130 - 160ml

S6 (C8) - Najnowsza platforma C8 (4A)

Refrigerant: R1234yf Amount (g): 500 - 550g Oil: PAG46yf Oil (ml): 110 - 140ml

(4G/C7) kompresor Denso/Zexel

Refrigerant: R134a Amount (g): 570g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 120ml
See full specification

Other problems in A6 (C7)

A/C cooling is weak and gradually loses performance

High Priority

Unusual noise and metallic grinding when A/C is on

High Priority

Slow loss of refrigerant or A/C system leakage

High Priority

Blower vents emit warm air when A/C is turned on

High Priority

Air conditioning stopped cooling / no response to AC button

High Priority

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