Press a key; as long as the control lamp is on, the heating operates at increased power (rapid defrosting).
Vehicles with automatic air conditioning: after the indicator goes off, the heater automatically turns on the economy mode, and after 20 minutes the heater turns off.
If necessary, press the key again:
The quick defrost mode will start again.
Switching off: With the control lamp on, press the button.
If necessary, the heating can be switched on again after each engine start.