You have mixed up some things.
ME795040 is not for you , you probably have a MED9 ecu (TFSI)
What do you want to do with Vag com exactly ? Vag com (VCDS) doesn`t increase power it is a VAS emulator mainly for logging.
1)Full backup can be achived with either BDM (best choice) or obd2/bench read (not recommended for full backup)
2)You need a lot of reading for this
3) ok
4) these can be done via VCDS probably..
Scan xl PRO has some problems with MED9 from personal expiriense ,try VCDS (vag com) for logging.
Thanks very much for the reply!
I am indeed under the impression this car has MED9.1 having checked recently. I was only referring to VAG Com for the body control module as I believe the engine ECU won't be deciding things like TV on the move etc. I fully understand I need to get the engine maps backed up from the ECU to look at doing enything speed / performance related..
Would you happen to know / be able to recommend an Audi specialist who has worked on these vehicles?
regards
D1