Help with s tronic gearbox oil and capacity

[vw754]

Gearbox code PBF audi a3 2012, s tronic, i need to know how much oil the gearbox takes, audi say 6.9 litres ,reading on different sites people are saying 5 litres.??

Also can i use dsg oil from euro car parts, instead of audi, as its a fraction of the price?
Only just got the car so no idea if its 6 or 7 speed

[VAG-Abound]

6.9l is initial fill. ~5.2l is listed for the change.

So many oils for so many boxes, but I think it is G 052182A2 (or ...A6) for the PBF (6-speed BTW).

There are a few sellers with odd quantities to sell on eBay, so should be able to get the real thing for a reasonable price.