Q14 is in KM, Q17 is in miles no? Same distances 15km is ~10 miles in rounded VW terms.
That's what I initially thought - I assumed that QI4 in km was for markets that run in km such as Germany, France etc. and QI7 in miles is the same schedule but just in miles for markets that run in miles such as the U.K. But... then I thought why would V.W. bother to differentiate the two of them if they are essentially identical (after being rounded). I thought why don't they just have the one and write 15,000 km/10,000 miles or one year rather than have two separate PR codes listed with essentially the same distances and the same time frames. Then when I saw that the inspection service was totally different between the two I was truly confused...
I'm thinking that it is a possibility that all European built cars actually calculate in km only and that is why some U.K. owners report the servicing distance values shown by their cars as being slightly less than 10,000 miles and not exactly 10,000 miles as 15,000 km is 9,320 miles. I'm also thinking it is a possibility that U.S.A./Mexico built cars for the NAR market may calculate in miles only and this is what the QI7 PR code is connected to (but... not all V.W. cars for the NAR market are built there such as the Golf R...). If this is the case I'm still unsure as to why the inspection service interval would be different between the two markets though.
To shed further curved light on this I checked the service information on my car this morning via the car menu. It is showing the car being due an oil change service in 10,400 km or 7 days but it is also showing the car being due an inspection service in 25,400 km or 358 days. If the car is following the QI4 service schedule then once the car has reached two years old (which it has) it is due an inspection service every year (or sooner if I reach the +30,000 km mark before then) and an oil change service every year (or sooner of I reach the +15,000 km mark before then). Although the distance elements differ between the oil change service and the inspection service, should they not be aligned in the time element of 1 year within the menu of the car? I will always reach the 1 year mark before the distance marks as I only drive low miles. For example I have only driven 4,600 km since the last service which was one year ago. Not sure if it makes a difference but my GTD was originally a U.K. car as was sold new in Northern Ireland but it has since been exported and is now running on roads which use km. Obviously I can switch the unit value between miles and km within the settings so it may be an identical car (other than the speedo markings) to the same model had I bought it new from my local dealer for example.
I really wish V.W. made this sort of information more available or at least that their dealers were more clued in. It's pretty simple stuff but very difficult to nail down and get a conclusive answer unfortunately.
I'll contact Evo and see if he can straighten this one out. Thanks for the info.