Another update-
Dropped it into Vw Hatfield on Tuesday. They came back that day, and said EGR needed replacing, and would take a couple of days, would be completed by Thursday/Friday at the latest.
Phoned for an update yesterday am, and was told they were still working on it, but would be completed today.
Then I called about 4ish, and they said it would now be Monday.
I told them that was unacceptable and they said they would complete the work Saturday morning.
I've just been to collect it, and yes, you guessed, management light still on, fault not cleared.
It now needs a probe apparently.
On the plus side the tech left the instruction guide on how the replace an EGR on my seat, so I can do it myself next time.