ADDITIONAL INFORMATION FOR VEHICLES WITH A/C COMPRESSOR WITHOUT A/C CLUTCH, (ONLY WITH A/C Compressor Regulator Valve -N280-)

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.

The engine can be started only after the refrigerant circuit has been completely assembled (the A/C compressor runs continuously).
If the engine has to be operated with the refrigerant circuit empty, only do so for as long as absolutely essential and avoid high engine speeds.