[arucano]

It is coded to clean the headlights every so many windshield washer cleanings. It can also be coded to never do it (which is what I have since we don't have to clean snow and ice off the headlights here) It can be set Active or non active. The number of squirts during headlight cleaning. Headlight blocking time. Time between pulses. There is also a speed above which it does not spray. Duration of spray.
You can code this using BimmerCode which is easy to use. There are other software packages that can do it as well be they require a little mode in depth knowledge.