Bad timing. You need to check timing with VAG-COM.
I am trying to get rid of this code for a customer. Anyone had any experience with it? I don't have a VAG specific scanner, just a generic which does make it hard to get the real facts on this error. Swapping cam sensors left to right doesn't change anything. Searching brought nothing as well.
The dealer swapped motors (I guess someone blew up the original), then swapped intakes. They messed up the intake flaps so that's where I come in. I fixed the flaps (and decarbonized it) and now its has much more power. Right now its hard to start, with a generic P0346 as well.
BKH 3.2l FSI
P.S. I forgot: Car is '07 A6 3.2L FSI BKH