Here is a convenient kit that includes all essential aftermarket filters.
2002-2006 R53 MINI Cooper S Hatchback
These are aftermarket filters. Get the kit and save some $$!
[ ] Oil filter and drain plug
[ ] Itake air filter
[ ] Cabin microfilter (paper)
NOTE: The hole at the bottom of the oil filter will appear much smaller than the shaft in the filter base - this is NORMAL and CORRECT. If you press the filter into the base, the hole will 'stretch' over the shaft. This is a design feature to ensure a tight seal so the oil does not bypass the filter.
To reset the oil change interval in your MINI, see oil service reset.