Myself and a few others had problems with the leaving home lights. The coming home lights worked ok, managed to change the timer to 10 seconds. Now to enable to leaving home lights you need to follow alter the following adaptation:
Control Module Adaptation
Select 09 (Central Electronics)
Adaptation -> Function 10
-> Channel 001 (Coming-Home Time)
Range: 0 - 120 Seconds
-> Channel 002 (Leaving-Home Time)
Range: 0 - 120 Seconds
By default the leaving home lights were set to 0 in ch. 02, just change them to multiples of 10 seconds and boom! Now the lights come on when I unlock the car by remote.