Audi A4 B8 Cornering Light Test
On some models, cornering lamps provide white steady-intensity light for lateral illumination in the direction of an intended turn or lane change. They are generally actuated in conjunction with the turn signals, and they may be wired to also illuminate when the vehicle is shifted into reverse gear,.[21] Some modern vehicles activate the cornering lamp on one or the other side when the steering wheel input reaches a predetermined angle in that direction, regardless of whether a turn signal has been activated (wikipedia).
Central electronics
Adaptive Lights defective
Fault codes:
02235 Stationary Cornering Lamp, Left (M51)
That means that the left bulb is broken and you must change it.
Headlight range control defective (from ADS Carista App): When you activate ADS / Show suspension option in ADS menu and you don’t have dynamic suspension, then you will get an error (so, DO NOT ACTIVATE Suspension option when you don't know if you have or not on your car(