About a month ago, my 2012 A6 with 49K miles started to idle roughly. A local repair shop diagnosed the issue and found bank 2 intake and exhaust cams out of time and showed me with the head covers removed using an Audi gauge that the cams were out of line. they said that a repair would require dropping the engine and would be expensive. I decided to take the car in to the local Audi dealer. The dealer says that motor mounts are bad and need to be replaced for $1700+.
Need advice on what to do. Concern that if I have the dealer fix mounts, would still need the valve train repair.