Suction the air conditioning
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2022 BMW M340i xDrive, 2022 BMW M340i, 2022 BMW 330i xDrive, 2022 BMW 330i, and 2022 BMW 330e xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Prerequisite
The engine is switched off.
CAUTION:
Refrigerant circuit under high pressure
.
Injury hazard!
Injury hazard!
- Note and follow safety instructions on containers.
- Avoid contact with refrigerant; wear safety goggles and hand protection.
- For additional information see: NOTES REGARDING REFRIGERANT (R134A, R1234YF) AND REFRIGERANT OIL and NOTES FOR REPAIR WORK ON AIR CONDITIONING .
NOTE:
TECHNICAL INFORMATION
If the A/C service station for the R1234yf refrigerant identifies contaminated refrigerant in the refrigerant circuit of the vehicle before the suction process, a special procedure to draw off and dispose of this refrigerant must be followed.
If the A/C service station for the R1234yf refrigerant identifies contaminated refrigerant in the refrigerant circuit of the vehicle before the suction process, a special procedure to draw off and dispose of this refrigerant must be followed.
- Let the engine run for a few minutes at a low engine speed (800-1200 RPM) and with the heating and air conditioning system switched on.
- Stop engine.
- Carry out the service function:
- Body
- Heating and air conditioning functions
- Drain/fill up refrigerant circuit
- Remove the sealing caps from the refrigerant filler necks.
- Connect the high pressure line of the A/C service station with the vehicle's high-pressure connection (red).
- Connect the low-pressure line of the A/C service station with the vehicle's low-pressure connection (blue).
- Start the suction process on the A/C service station.
- During suction process, allow the blower of the heating and air-conditioning unit to run at middle blower speed.
- Record the amount of evacuated refrigerant and coolant oil level after having completed suction process.
- Keep the sheet with the recorded quantities as the values are once again required when filling.
- Disconnect the high pressure line and low pressure line.
- Drain the high pressure line and low pressure line.
- Close the sealing cap of the coolant filler neck.
- Correctly dispose of the drained refrigerant oil.
Precondition
PHEV, hybrid: The engine is switched off.
CAUTION:
Refrigerant circuit under high pressure.
Injury hazard!
Injury hazard!
- Note and follow safety instructions on containers.
- Avoid contact with refrigerant; wear safety goggles and hand protection.
- For additional information see: NOTES REGARDING REFRIGERANT (R134A, R1234YF) AND REFRIGERANT OIL , and NOTES FOR REPAIR WORK ON AIR CONDITIONING .
NOTE:
TECHNICAL INFORMATION
If the A/C service station for the R1234yf refrigerant identifies contaminated refrigerant in the refrigerant circuit of the vehicle before the suction process, a special procedure to draw off and dispose of this refrigerant must be followed .
If the A/C service station for the R1234yf refrigerant identifies contaminated refrigerant in the refrigerant circuit of the vehicle before the suction process, a special procedure to draw off and dispose of this refrigerant must be followed .
- Turn on driving readiness.
- Switch on the air conditioning and let it run for a few minutes.
- Turn off driving readiness.
- Carry out the service function:
- Body
- Heating and air conditioning functions
- Drain/fill up refrigerant circuit
- Remove the sealing caps from the refrigerant filler necks.
- Connect the high pressure line of the A/C service station with the vehicle's high-pressure connection (red).
- Connect the low-pressure line of the A/C service station with the vehicle's low-pressure connection (blue).
- Start the suction process on the A/C service station.
- Let the blower of the heating and air-conditioning unit run at average blower speed during the suction process.
- Note the amount of refrigerant drawn off and the amount of refrigerant oil drawn off at the end of the suction process.
- Keep the sheet with the recorded quantities as the values are once again required when filling.
- Disconnect the high pressure line and the low pressure line.
- Drain the high pressure line and the low pressure line.
- Close the sealing cap of the coolant filler neck.
- Correctly dispose of the drained refrigerant oil.