High Priority 100% confidence

Unusual noise and metallic grinding when A/C is on

in Hyundai Sonata (2024-2026)

Symptoms

  • Unusual noises when A/C is turned on

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A/C Technical Specifications

V (NF)

Refrigerant: R134a Amount (g): 530 – 570g Oil: PAG FD46XG PAO 68 lub PAG ISO 46 Oil (ml): 150ml

IV (new EF)

Refrigerant: R134a Amount (g): 660 –700g Oil: PAG FD46XG PAO 68 lub PAG ISO 46 Oil (ml): 150ml

III (EF)

Refrigerant: R134a Amount (g): 675 –725g Oil: PAG FD46XG PAO 68 lub PAG ISO 46 Oil (ml): 150ml
See full specification

Other problems in Sonata

Air conditioning stopped cooling / no response to AC button

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Hissing from vents and slow loss of refrigerant

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

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No airflow from specific vents or clicking noise behind dashboard

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A/C cooling is weak and gradually loses performance

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