I used to do that but I now use the two sons of an old friend. Means that I can wonder round and join in the banter, also means that I'm updated as they go along. When I phoned last week to arrange it they both said don;t worry yours will be fine.
What I do not understand are the emissions. Here are my results over the last three years:-
2015 0.58 l/m
2016 2.56 l/m
2017 0.72 l/m
Emission test seems to be a bit of a yo-yo
I have not done anything that would affect this for more than three years.
I did replace the engine ECU some four years back when the original died and had the replacement fettled a bit(a lot really) which improved consumption and power.
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Ray at Wigan Pier
2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore..
In progress, Nothing left to do.
Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter)