remove trim from under glovebox (two clips), look towards rear centre of heater box. need torch really. sometimes cover is fitted with 5.5mm bolt on filter cover, sometimes just hole for bolt. undo this bolt and push in clip at top of this cover and pull cover outwards. (note, it is sort of hinged at bottom). pull out pollen filter (bit of a squeeze). make sure new filter fitted correct way round for air flow and refit everything back. hook bottom hinge in first.
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