At least that’s what the maintenance book says, starting with a certain engine number … In the course of the last inspection at 88,000km, a mechanic wanted to look at a spark plug, but didn’t get up the screw of the ignition coil. They look really gammelig out … see pictures. At about 6,000km of annual drive I could just drive for two years now, but what do the screws look like then? Or maybe even now prefer the spark plug change? And which candles then take? Again those that hold 100,000km? Or rather which ones that would be due after 40,000km or in my case every 6 years?