Since working on the system is potentially dangerous, we strongly recommend that all work related to the air conditioning system be carried out by a BMW dealer or air conditioning specialist. At least don't remove any system components (hoses, compressor, fittings, etc.) until the system is completely discharged by a qualified technician. Read the precautions at the beginning of the Section Air Conditioner Maintenance and Precautions.
Withdrawal
1. Discharge the air conditioning system (see warning above).
2. Remove trim panel on sides of center console (see chapter Body).
3. Disconnect the electrical wire and remove the evaporator sensor.
4. Remove the evaporator cap and open the refrigeration lines.
5. Disconnect the refrigeration lines from the evaporator.
6. Remove the evaporator from the casing.
Installation
1. Install in reverse order.
2. Have the system drained, charged, and leak tested by the same qualified person who discharged it.