The Golf has a feature turned on by default in countries that have the “auto” european light switch.
The only requirements are the Central Electronics Controller (09) of type 3C0 XXX XXX XX, a RegenLichtSens (RainLightSensor) and the european light switch.
The option of the system is
- Lights turn on at 140kph (actual speed not speedometer speed)
- Lights turn off after 10 minutes driving under 80kph (again actual speed) or 10 minutes stopped (with or without ignition turned off)
Disable Auto Headlights above 140kph
- Open the Central Electronics Controller (09)
- Click the drop down box and choose the RegenLichtSens (RainLightSensor)
- Note the software coding (00)208933) (most cars have different codings)
- Convert to Hex (0)3 30 25
- Remove 1 from the left hand value Hex (0)2 30 25
- Convert to Decimal (00)143397 and replace the old coding.
Enabling Auto Headlights above 140kph
Perform the above but instead of removing 1 from the left hand value you add 1.
Options
- +1 = Highway Light
- +2 = Rain Light
- +4 = Rain Closing

[...] activation threshold can be adjusted here along with Highway light function (see Volkswagen Golf Auto Headlights above 140kph) and Rain Closing (see Volkswagen Golf Auto Rain Closing Windows and [...]
Hello,
I just wonder if it is possible to have all three options (Highway Light, Rain Light, Rain CLosing) active in the same time?
Maybe, I don’t understand it correctly, but if I add 1, how to add 2 and 4?
Cheers,
Marcin
Yes it is. Instead of adding 1 you add 7 instead (1 + 2 + 4).