Refrigerant R744 Analysis

WARNING: This page is about a different car, the 2022 Volkswagen ID.4 and 2021 Volkswagen ID.4. However, it is still accessible from the selected car via links, so may be relevant.

Not required for refrigerant R744.

Refrigerant R744 is a naturally occurring gas that is vented from the refrigerant circuit.
To charge the refrigerant circuit, always use fresh refrigerant from a canister. Refrigerant with the necessary purity is purchased through local gas distributors.