Hi Etienne,
I am a member of the ClubTouareg Forum. Like yourself a own a 2004 V10 Diesel Touareg. I have a battery drain problem which my local VW Dealership in Liverpool, England have diagnosed is due to a Drain from the satnav system. I have made them aware of the information you have provided on the forum. They do not have an update disc later than 0629 which surprises me.
Would it be possible for you to send me the information in ISO's format so my son can burn it on to a disc. My I.T. skills are not very good so hopefully this makes sense to you. Luckily my son is proficient in I.T.
Regards,
Richie