Vehicle features and options
This chapter describes all standard, country-specific and optional features offered with the series. It also describes features that are not necessarily available in your car, e. g., due to the selected options or country versions. This also applies to safety-related functions and systems. The respectively applicable country provisions must be observed when using the respective features and systems.
BMW X3 Service & Repair Manual > HVAC: Refrigeration oil
2.0 REFRIGERATION OIL
OIL USED IN FREONÂ-CHARGED SYSTEMS
A mineral-based oil is used. The oil level in the compressor must be checked before filling an air conditioner
with refrigerant. It can be checked only if the system is without refrigerant.
Always check the oil level each time a new sys ...