This is a routine maintenance item that many people overlook. The designers at MINI Cooper took the time to create a 'clean' environment in your cab by using an interior air filtration system. Unfortunately, like any other filter, it must be replaced in order to continue providing clean filtered interior air.
2002-2006 R50 MINI Cooper and R53 MINI Cooper S Hatchback
2005-2008 R52 MINI Cooper and Cooper S Convertibles
Carbon activated filter
Unlike paper-only filters, this higher quality 'carbon activated' filter traps odors and chemicals in highly absorbant granules (or pores), which look like a hard scrub brush. Activated carbon is a charcoal that is treated with oxygen in order to open up millions of tiny pores between the carbon atoms, resulting in a highly absorbent material.
The ventilation microfilter is located on the right side of the heater and air conditioning housing, behind the glove compartment. MINIs with manual air condintioners have screws holding the cover in place. In MINIs with automatic air conditioners, the cover is held in place by clips - simply pull straight down.