Dipped beam
With the steering wheel stalk switch's rotating ring in position, dipped beam is activated automatically at dusk or when daylight becomes too weak. Dipped beam is also activated automatically when the rear fog lamps are activated.
With the steering wheel stalk switch's rotating ring in position, dipped beam is always switched on when the engine is running or when ignition position II is active.
Tunnel detection
The car detects when it is about to drive into a tunnel and switches from daytime running lights to dipped beams.
Note that the rotating ring in the left-hand stalk switch must be in mode for tunnel detection to work.