Why Does the Haval H6’s Air Conditioning Lose Cooling in Hot Weather?

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Why Does the Haval H6’s Air Conditioning Lose Cooling in Hot Weather?

During the peak summer heat in Pakistan, my Haval H6’s A/C doesn’t cool effectively, especially in slow traffic. The airflow is fine, but the air isn’t as cold as it should be. Some owners mentioned issues with refrigerant levels o r condenser fans. Has anyone faced this problem? What’s the best way to get it fixed without voiding the warranty?

Talha Kyanii asked on 29 Oct 2025 15:55:50 pm

1 Answer

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Gari Master - on 29 Oct 2025 16:20:50 pm

This is quite common in Pakistan’s intense summer heat, especially in areas like Karachi, Multan, o r Lahore. The H6’s A/C system is tuned for moderate climates, so it sometimes struggles in 40°C+ conditions and slow-moving traffic.

Possible causes and solutions:

Condenser fan not running at full speed — ask your service center to inspect it.

Low refrigerant levels — a small leak o r factory underfill can reduce cooling re-gas with the recommended R1234yf refrigerant if needed.

Cabin filter may be dirty — clean o r replace it every 10,000 km.

Some owners have reported that an ECU update improved A/C compressor performance.

During slow traffic, switching to recirculation mode and keeping the fan on medium speed helps maintain cooling. If cooling s drastically, it’s best to have it checked at the official Haval service center, as some units had compressor sensor calibration issues fixed under warranty.