Safety information for handling refrigerant R1234yf (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022)
R1234yf is non-toxic at normal temperature, non-flammable and not explosive in conjunction with air at any mixture ratio.
As a gas, R1234yf is colorless, odorless and heavier than air. If it enters the atmosphere, this may result in an imperceptible danger of asphyxiation or in cardiac palpitations, especially in workshop pits. Ventilate rooms adequately if necessary, turn on installed extractor systems.
Store filled refrigerant pressure flasks so that they are not subject to direct sunlight or other heat sources (at maximum 45°C). Also avoid exposing them to mechanical stress (e.g. by dropping).
Do not weld or solder on to filled air conditioning systems or in rooms into which R1234yf may have leaked. Exposure to flames or high temperatures (> 50°C) may give rise to toxic products of decomposition (hydrofluoric acid). For this reason, do not smoke either.
In the event of fire, carbon dioxide (C02 ), extinguishing powder and a sprayed water jet are deemed to be suitable extinguishing agents. Cool reservoirs at risk with a sprayed water jet (risk of bursting! ).
If the protective caps on the filler valves are difficult to open, there is a risk of injury from leaking valve inserts (high pressure).
The filled refrigerant circuit of the A/C system is subject to excess pressure. Before carrying out repairs on the A/C system, it is absolutely essential to draw off the refrigerant.
After each refilling of an air conditioning, check that protective caps of the filling valves are hand-tight. They serve as additional seals.
Danger of injury!
Refrigerant circuit is under high pressure!
Draw off the refrigerant before any repairs on the refrigerant circuit!
The refrigerant circuit is only depressurized after drawing off.
- Check the pressure gauge on the A/C service station for actual pressure drops before repair.
The corresponding operating instructions of the A/C service station used must be observed!
Avoid all contact with liquid or gaseous R1234yf.
At high temperatures, R1234yf is inflammable!
Protective measures/rules of conduct:
- Wear safety goggles
- Wear oil-resistant protective gloves
- Do not smoke!
- Observe country-specific safety regulations.
First aid measures:
- Eye contact: In the event of contact with the eyes, rinse immediately with plenty of running water and consult an ophthalmologist.
- Skin contact: In the event of contact with skin, remove affected clothing immediately and rinse with plenty of water.
- After inhalation: If refrigerant vapors are inhaled in greater concentrations, remove the person affected to an area of fresh air and keep them under supervision. Call for a doctor. If breathing problems are experienced, breathe additional oxygen. If the person affected is breathing with difficulty or has stopped breathing, incline the person's head at the neck and administer the kiss of life.