6452... Instructions for opening and part exchange in refrigerant circuit (X5 xDrive 40i, 2019-, X5 sDrive 40i, 2020-, X5 xDrive 50i, 2019, X5 M50i, 2020-, X5 xDrive 45e, 2021-)

Required Special Tools: 

• 00 9 030
• 32 1 270

Attention! 

• Always use new O-rings each time A/C connections are opened (refer to applicable BMW parts catalogue)

  They must not  be coated.

  Use special tool 00 9 030 to install sealing rings without damaging them.

• Open the refrigerant circuit for as short of a period as possible.
• Close all components and lines in the refrigerant circuit and return parts immediately  following the removals at openings with special tool 32 1 270 to prevent penetration of moisture or foreign objects.
• If the refrigerant circuit was closed at the openings with special tool 32 1 270 but it remains open for more than 24 h, the dryer insert for the air conditioning must be replaced.

1. Part replacement as preliminary work for further repair work and part replacement based on gradual leakage  .

   (minor leak, e.g. hairline crack)

   Procedure: 

   • Suction heating and air conditioning system, then determine suctioned coolant oil level
   • Carry out part replacement
   • Replace removed refrigerant oil and additionally top up with new refrigerant oil according to components replaced:
     • Compressor: refer to NOTES ON REPLACING AIR CONDITIONING COMPRESSOR, DETERMINING THE AMOUNT OF REFRIGERANT OIL  .
     • Evaporator: 10 ml
     • Capacitor: 20 ml
     • Desiccant insert/dryer flask: 20 ml
     • Each replaced refrigerant line: 10 ml
     • Condenser with integrated dryer flask: 40 ml
     • Safety pressure switch and gasket: no additional refrigerant oil
     • Only I01: Radiator, high-voltage battery unit: 20 ml
   • Evacuate and fill air conditioning system
2. Part replacement due to sudden leakage 

   (major leak, e.g. line disconnection due to accident)

   Procedure: 

   • Suction heating and air conditioning system, then determine suctioned coolant oil level
   • Carry out part replacement
   • Replace removed refrigerant oil and additionally top up with new refrigerant oil according to components replaced:
     • Compressor: refer to NOTES ON REPLACING AIR CONDITIONING COMPRESSOR, DETERMINING THE AMOUNT OF REFRIGERANT OIL  .
     • Evaporator: 35 ml
     • Capacitor: 35 ml
     • Desiccant insert/dryer flask: 55 ml
     • Each replaced refrigerant line: 35 ml
     • Condenser with integrated dryer flask: 55 ml
     • Safety pressure switch and gasket: no additional refrigerant oil
     • Only I01: Radiator, high-voltage battery unit: 35 ml
   • Evacuate and fill A/C system