Hello guys, I was a little surprised today after a closer inspection of my workshop bill after an oil service, that the interior filter was changed again. It was last changed during the inspection (without oil change) in July 2023, i.e. only 6 months ago. In between I drove only 1,800 km. That time before the interior filter was changed only after 3 years and approx. 17,000 km. Was everything in the same seat contract workshop. that is planned in the maintenance plan, maybe more often recently? Or is there something measured in the car with it? But that would surprise me then, because it was very little and also not moved under special conditions. So I would say, last time something very late, this time a little early. In addition, the possible unnecessary costs of about 81 Euro allles come together. Alone the spare rope cost already 56 Euro net. What do you mean? I like good air in the car, but also does not want to unnecessarily throw out the money to the window. I will of course ask in the workshop again in doubt, but wanted to ask here before, what do you think about it.