ABL = Active Bending Light
Xenon control unit is not included with this part.
This headlight uses the new type of xenon control unit which slides in instead of being screwed in on the bottom of the headlight.
You need to order the new type of control unit for the cars who still use the old type of control unit.
The correct unit is listed at the bottom of this page.
This applies to cars untill VIN number -358121.
Unfortunately the old type headlight is no longer suppliable.