[adriang]

Rear fogs mod, super easy to do. I had to pull out the light switch because i accidentally hit it with my knee and it popped in.

I didn't take pictures of it but basically

1. pull out the vent (i pushed left and was able to pop it out by hand with no tools) above the light switch
2. pull out entire light switch assembly, and open it up (i did it by hand)
3. Pop the button under the front fog light switch out (two clips holding it in place) and cut the "tangs" as mentioned in this post http://www.1addicts.com/forums/showthread.php?t=610664
4. Reassemble and use responsibly

Edit: Some people have been using a lego piece since their reaf fog light button didn't have enough reach to the circuit however I had no problems in a 2011 335d

[MonacoBlueE90]

That sounds so complicated. I just press the button next to that light switch , but i hardly ever use them anyway.