Thanks for the reply fredgroves and BillSan.
My issue is random, and not specific to start up / or start of journeys. I've tried to keep a mental note of when they occur to see if i could spot a pattern but there's none. I will certainly try moving the steering wheel, i have noticed i seem to get more when turning but equally i can be cruising straight on the motorway and it will ping!
Yup me too, try pushing and pulling at about 10 o'clock and 2 o'clock positions.
Mine got worse over time, guessing its some sort of connection wearing out or pulling loose.
It got so bad in the end that it was almost constant bonging as I drove along.
As I said, any and every VW dealer know all about it. Its not rare.
I only hope that the replacement wheel is an updated part and this isn't something that needs to be done every 2 years!!!