It's good practice to dust, or vac out the area where the filter sits to ensure there's no dirt in the area. If your filter is beneath the windscreen it's very important however that you replace any cover correctly so that the waterproof seal remains intact. If the filter gets wet it will quickly become mouldy and the car will smell damp, and
Changing air filter on a 2020 Ford Explorer at 43k milesSIMPLE GREEN HAND TOWEL PROMO and the leak in the front passenger goot well could be the pollen filter housing which is fitted behind the glove box, they have been known to leak becuase when the pollen filter is changed the seal is supposed to be changed at the same time, and the seal can be difficult to get right on the unit thus allowing water in to the footwell, 5761 posts ยท Joined 2002. #2 ยท Jul 3, 2009. Need to check the drain holes in the scuttle area are clear. Steve. 53 Ink Blue Mondeo ST220 estate. 08 Tonic Blue S-Max Titanium. And my other toys are: 1994 Radiant Red Ford Escort RS2000 4x4. 1987 Diamond White Ford Capri 2.8i special. I replaced the pollen filter and the leak came back. I have pulled up the carpet in the back this morning and discovered that there is a hole in the drainage cap in the footwell. This matches a similar sized hole on the underneath of the car in the same place on the cap. Removed glove box, changed pollen filter. Reseated all connectors I could find under there (hoping one is the evaporator sensor one forum post mentioned as a possible cause). I should mention too that my speedo works, so I assume the car knows when it is stationary/slow. gDIWx.
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  • ford mondeo pollen filter location