So got the Golf back yesterday after the VW garage had it for a week to test drive it and to source this twitching issue it has. They said they couldn't fault the car and it drove fine when they had it.
I kept telling them its not the driving, its the idling that's the issue so driving it about would be ok! They said a seal had gone on an inlet pipe which they replaced and said that could have been a cause. Drove it away and within a few hours it was twitching again! I cannot see how it was twitching everyday without fail before I gave it to VW, they didn't experience the whole time they had it, I get it back, and now its doing it again!
I am so done with this car! I paid a lot of money for it, and I have had enough! I suggested the dual mass flywheel, as have read the symptoms I am experiencing are identical to a DMF on its way out, but got told it wasn't that... I'd like to know how they can be so sure without looking! DPF problems keep being suggested, but again, no one wants to actually take a look. It all seems like guess work and "computer says no" to me! They must of had other cars with the same problem coming in, if you do a search, loads of people seem to have experienced it!
Sorry to go on, but I don't know what to do. Carry on investigating or just give up and either put up with it or chop the car in!