The lamp inside the second corona (inner side) is not merely a feature to show to oncoming traffic that you intend to turn, in addition to the blinker - its main purpose consists of adding light to the dark side of your choice. This corner-illuminating lamp only operates if the light switch is in "automatic" position (10 o'clock position).
1er 2013 Manual, pp. 102-103 (
http://www.1addicts.com/forums/showp...82&postcount=1):
"Adaptive Light Control
The concept
Adaptive Light Control is a variable headlamp control system that enables better illumination of the road surface. Depending on the steering angle and other parameters, the light from the headlamp follows the course of the road.
In tight curves such as on switchbacks or when turning, at speeds up to approx. 40 mph/70 km/h, an additional cornering light is switched on that lights up the area inside the curve.
Activating Adaptive Light Control
With the ignition switched on, turn the light switch to position 3, refer to page 101.
The corner-illuminating lamp is switched on automatically, depending on the steering wheel angle or turn signal indicator.
Standstill function: to avoid blinding oncoming traffic, the Adaptive Light Control does not direct light toward the driver's side when the vehicle is at a standstill.
When you are reversing, only the corner-illuminating lamps are switched on and active on both sides.
Malfunction
The warning lamp lights up. A message appears on the Control Display.
The Adaptive Light Control is malfunctioning or failed. Have the system checked as soon as possible"
For your convenience, please find below the complete "Lamps" section of the 1er 2013 Manual (to refresh your memory or maybe learn something new
):
