Hi,
new member here.
Recently acquired a Touareg, first registered November 2007, Model Year 2008.
It's got an RNS510 and I intend to upgrade the firmware to 3810 and the maps to V8.
I have researched and read hundreds of posting on this subject, bit I'd just like to confirm something.
The following is the output from VCDS:

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-7L.clb
Part No SW: 6N0 909 901 HW: 7L6 920 985 Q
Component: J533 GW-K-CAN TP20 7520
Coding: 57E2E789C8056003
Shop #: WSC 00400 210 175238
VCID: F0E96E44E3B8B29


No fault code found.


-------------------------------------------------------------------------------

I believe this means the Canbus version is "Q", and it will not suffer from the battery drain problem?

Many thanks

Admiral1960