Electric vehicles rely on refrigerant systems even more than petrol cars — not just for cabin comfort, but increasingly for battery thermal management too. Understanding these systems is a growing part of modern AC work.
What refrigerant do EVs use?
Most modern EVs use R1234yf, the same ultra-low-GWP refrigerant as recent petrol and diesel cars. Some use heat pump systems to heat and cool the cabin efficiently, which is important for preserving driving range.
More than cabin cooling
In many EVs, the refrigerant circuit also helps regulate battery temperature, keeping cells in their optimal range for performance, charging speed and longevity. This makes the thermal system more complex than a traditional car AC.
Servicing considerations
EV thermal systems can be more integrated and may use specific procedures and equipment. Technicians need the right training and must observe high-voltage safety precautions when working around EV systems. Always follow manufacturer guidance.
FAQ
Do electric cars need air con regassing? Yes — like any vehicle, EV refrigerant systems can lose charge over time and need servicing to maintain efficiency and protect the battery thermal system.
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