In case of possible warranty cases, will one encounter problems from dealers in the future, if one now with a new car which will run for a long time under guarantee itself replaces the pollen filter (indoor air)? With all my previous after-guarantee I have always made it myself. Already at the last it was the solution like today with the new car – behind glove compartment, passenger seat. Has worked wonderfully with the previous ones, together with cleaning of the shafts and disinfection of the heat exchange rs the air conditioning system. For the current new car hab’ MANN’s guide ready for the procedure and necessary steps. Based on previous experience, the complexity level should be similar.