Inspection now or later ??

Hello, my wife’s “hate” actually has to have a 2-year inspection in November/December, only we ask ourselves if this is necessary or if we can wait until spring. Finally, it is a question of money;-) Here are the data: VW Fox 1,2l petrol, year 01/2006, currently km-Stand approx. 22.300 last inspection was 2 years ago in 2006 (purchase date), last December(2007) oil change and brake fluid change at the time The question arises for us because 8000 km was driven with the current oil, by the way LiquiMoly TopTec 4100 5W-40. According to the manufacturer (Liqui Moly) it is possible to realize oil change intervals of up to 30,000 km depending on the manufacturer’s specification. What is your opinion regarding the inspection? Thank you