Was the failure negligible due to a design, fabrication or material change? Or that people removed, or checked as in was a known weak point? Then again the vanos solenoids are known issue. Things go wrong, some times problems don't appear till the cars are in the real world.
No vanos in the diesel. The point is that the design of the swirl flaps is different across the engine size and types - and just saying “swirlflaps bad” isn’t actually that helpful.
Was the failure negligible due to a design, fabrication or material change? Or that people removed, or checked as in was a known weak point? Then again the vanos solenoids are known issue. Things go wrong, some times problems don't appear till the cars are in the real world.