Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2024Q4 E-TRON PREMIUM, AWDREPAIR AND DIAGNOSISHYBRID/ELECTRIC POWERTRAINBATTERY MANAGEMENT SYSTEMSGENERAL, TECHNICAL DATA (REFRIGERANT R1234YF SERVICING)00 GENERAL, TECHNICAL DATATECHNICAL AND PHYSICAL PRINCIPLESPHYSICAL CHARACTERISTICSREFRIGERANT R1234YF COMBUSTIBILITY / DECOMPOSITION
2024 Audi Q4 e-tron Premium, AWD
Refrigerant R1234YF Combustibility / Decomposition
2024 Audi Q4 e-tron Premium, AWDSECTION Refrigerant R1234YF Combustibility / Decomposition
- The refrigerant R1234yf is combustible in a specified concentration in the surrounding air.
- The refrigerant R1234yf breaks down when exposed to flames and glowing or hot surfaces. UV light also causes refrigerant decomposition (UV light is a component of normal sunlight, it is also created for example by electric welding) the resulting decomposition products are toxic and must not be inhaled. However, irritation of the mucous membranes provides an adequate and timely warning.
- During decomposition specific dangerous products such as carbon monoxide, hydrogen fluoride and / or hydrocarbons can be created.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.