Did you scan without the ignition on as it looks like the drivetrain CAN isn't awake. There's not too much to worry about in your scan, nothing that would concern me. If you can do another scan tomorrow with ignition on were can see if the other modules have any faults logged.

Hmmm, I scanned it with the ignition on but the engine not running, did I do something wrong?

When I replaced the battery in the RS6 a lot of stuff showing up in the scan went away afterwards, I do think a dying battery throws up a lot of strange errors+++

Argh! Just got the battery in and I can't find a serial number sticker anywhere, just this

http://i1092.photobucket.com/albums/...pshoer29ij.jpg

http://i1092.photobucket.com/albums/...pswnq7unj7.jpg

Assuming the bottom one is a serial number, what codes should I put in?

Its mentioned on Ross Tech that I need this info:

Enter the new Battery Part Number (10 or 11 digits)
Enter the new Battery Serial Number (10 digits)
Select the new Battery Vendor

The only thing I know for sure is its a Varta lol

I have the same battery. Hold on while I'll find my code which you should be able to use as well.

Subsystem 1 - Part No: 000 915 105 AK
Component: von VA0 1308200306
Coding: 303030393135313035414B56413031333038323030333036
Shop #: WSC 00000 128 00289

Hmmm... that is odd. Try a scan with the engine running, it's safe to do that.

Thanks mate, will give that a go - I scanned the individual modules last night on the engine and gearbox so I know its reachable, will do it again shortly when I have warmed up with a coffee, its brutal outside this morning.

I was meant to be replacing all the coolant hoses on my track car today with uprated silicone ones - sod that!

You don't need the serial number
Just change last digit of the existing serial number.
There is no live database with which car or VCDS will check if serial number is valid.
It's as simple as changing digits.

Do a full scan with engine running after changing battery.
Then go to each module individually and clear codes that way not in one go.
Ignition off, lock the car wait couple of minutes
Fire up the engine and do a full scan again.

Battery on the last legs can cause even 10-15+ faults, even scary ones but that's where it ends. After clearing faults for the second time with new battery you'll be good to go. Only faults after that is what you should be concerned about.