Replaced the 'cam follower' today.
Oem part from VW £30 including vat and £15 for my mechanic mate to do. Truth be told I was pretty impressed with his speed, it only took 30 minutes in total and I had been told by VW (Plymouth) that it would take between 60 and 75 minutes for them to do the job and an independent garage local to me reckoned on it taking the same time.
It seems to have quietened down the ticking noise from the engine bay ever so slightly, although I have to say that VW are taking the mickey recommending you replace this part every 10,000 miles. It had never been replaced on my car and at 54,000 miles you see (from the picture below) that it wasn't particularly rounded off or worn down.


For £45 I thought it a worthwhile investment.

At the same time I got the moisture content checked in my brake fluid and it was at 1.9%. That's after 12,000 miles of pretty tame use and after 8 months on the road. The fluid used last time was 'AP Racing' and it would be interesting to hear your opinions on other brands, as I may well change for another brand if there's a chance that I could eek out a few more miles.
Thanks for reading.