03 745Li - Evaporator drain tube

Where is the evaporator drain tube located on a 745Li (2003 - E66)?
Apologies if there is already a post on this. I have searched as well as many other sites. We looked for a service manual for this year and can only come up with the Field Service Manual on DVD/CD which we have purchased.

Symptom: cold water leaking out on the floorboard front and rear passenger only when the A/C is on. We figure the evaporator tube must be clogged.

if you hear water noise inside the console then 2drains for it on the back of the transmission you will need to take off cover

http://www.bimmerfest.com/forums/sho...ighlight=drain