Thanks for the input.
Yes it has gone to the Audi Dealership, they have confirmed that the Dashpod is faulty (as I kind of knew).
I had read online and it seemed that this Dash pod failure is common on Audi model vehicles specifically Audi TT's which have been known to be way more serious.
The actual fault I believe is loose/cracked solder connections which cause the malfunctions and for other various error codes to be flagged which are red herrings. For example, ESD faults or Immobiliser faults. Although the dealership won't open the dashpod up to verify this.
I may take the faulty part back from them to send to testing however given the age of the car and it's faultless service history (and I do everything via the Audi Garage not 3rd party) I'm waiting to see if they offer a favorable price.