64 50 010 Drawing off, evacuating and filling heating and air conditioning system (R134a): Notes
- If the protective caps on the filling valves are difficult to open, there is a danger of injury from leaking valve inserts.
- Repair work may only be carried out on a depressurized refrigerant circuit!
- Before conducting repairs, check the actual pressure drop on the pressure gauge of the A/C service station.
- Follow all applicable SAFETY INFORMATION .
Shown on N54 engine by way of example.
Direct connection of filling adapter (1) on the expansion valve is shown.
Make sure filling hose (1) is laid without kinks.
Risk of damage!
Only R134a refrigerant may be used.
Restart engine only when the air conditioning system has been correctly filled.
Risk of damage:
Carefully move the climate service station!
Comply with the manufacturer's operating instructions and service interval for the A/C service station!
Make sure that the hoses of the A/C service station are drained after the drawing off or filling procedure!
The climate service station contains highly sensitive components, such as scales. These components may sustain damage due to improper handling, such as fast driving over a bump. This will result in a significant reduction of the measuring accuracy when drawing off and filling.
The vehicle must be parked on the floor during all drawing off, evacuation and filling procedures!
Filling a raised vehicle will result in insufficient filling levels.
In case of complaints, carry out a heating and air conditioning performance test!
If the system fails the test, draw off, evacuate and fill the heating and air conditioning system in accordance with the operating instructions of the relevant service station.
Service interval of service station must be adhered to.