Concept
The AUTO program cools, ventilates or heats
the car's interior automatically.
The air distribution and temperature are controlled
automatically depending on the temperature
in the car's interior and the desired temperature
setting including the selected intensity of the air
flow.
Switching
System wiring diagram
Horns
Horn, left
Horn, right
Relay in the Body Domain Controller
Body Domain Controller (BDC)
Steering column switch cluster (SZL)
Signal path of horn:
When the horn is pressed the signal is received by the steering column
switch cluster (SZL).
The SZL sends the in