Section 13 (Automatic A/C-Heater Systems): Self-Diagnostics: Notes
WARNING: This page is about a different car, the 1997 BMW M3, 1997 BMW 328is, 1997 BMW 328i, 1997 BMW 318is, and 1997 BMW 318i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To avoid injury from accidental air bag deployment, read and carefully follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM procedures in AIR BAG RESTRAINT SYSTEM article.
CAUTION:
When discharging air conditioning system, use only approved refrigerant recovery/recycling equipment. Make every attempt to avoid discharging refrigerant into the atmosphere.
NOTE:
A/C control unit is capable of storing intermittent or permanent faults in the form of Diagnostic Trouble Codes (DTCs). Accessing and identifying DTCs and diagnosis of such defects can be found only by using BMW Service Tester (Sun 2013 Engine Analyzer) and applicable BMW diagnostic software.