I have not read any posts where someone has converted foglights to hid on the e70 yet. I'm going to try it when I get back from my vacation in a few weeks. AFAIK from hours of information gathering on this forum as well as other forums, you will probably need to install a relay to prevent a error and keep the lights from flickering. The adaptive cornering lights might pose a new problem in where the HID bulb takes time to charge and would probably create problems since the bulbs are charging and discharging so much more. The best option would be to disable the foglight from being adaptive, or to use LED.