I had exactly the same issue with the
service book not being marked up by the main
dealer when we bought the car - after checking for the QG1 code on the
service book
sticker and the other
sticker in the boot, I marked it up for them.
It has to be said that long life services aren't in the financial interest of the
dealers, so it may be a case of selective amnesia croping up. If the punter clearly knows what they are talking about then they get what they want, but many drivers are really 'car users' these days and haven't a clue about the mechanical and
servicing side of things. In my case I also double checked that the
service sheet confirmed that long-life oil had been used.
As for how the oil quality sensor works, I'd like to know more about that - measuring the oil temperature and usage cycles would be quite easy, but I wonder how they get MrW's 'oil soot value'? I suppose you could do it optically and measure the transmissivity of the oil, or perhaps oil soot is related to the acidity of the oil, so you could measure the pH value.
As for the clicking relay fix, the
dealer did show me the printout of the instructions, which basically requires the removal of a goodly portion of the dashboard of the car, some splicing into existing looms and so on. Having seen the level of dismantling needed for the mod, and given that they were proposing to experiment with my car, I decided to leave well alone!
----------------------------------
Cross posted, thanks for the info Networkman - very interesting.