The parts that I have taken off the car are all marked 2001 as its date of manufacture , the Air filter is marked 20/09/01 , the cars production date is
Prod. Date 2001-10-16 .. It was under motorplan for at least 5 years and im sure i heard my aunt say that she extended it for another two there must have been at least one air filter change in that time .
Yup im booking it in for its airbag replacement , brake fluid flush and an oil service . Will ask them to give me some details .
Im sure that microfilter is also original ,All the ones on my E46 never looked like that before BMW replaced them. I used to open the thing up and clean up the leaves often. Her car has been garaged all its life.
Heres the pictures of the filter , I showed the filter to some of the guys at SMG and they were shocked themselves. Hopefully thats not the correct date on the filter lol , but it dosnt matter much now . I replaced it with a nice clean new filter haha.