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Water Ingress
Contents
Water Ingress
Background
If your Mondeo suffers from water in the boot, you might be able to identify the leak by checking the following areas:
Method
Rear light clusters
The seals tend to go on these with Mk2 Mondeos (and Mk1, to a lesser extent).
Simply replace or use silicone filler
Air Vent
The air vent above the rear wheel arches - the membrane may have come away
Roof Trim
The roof trim rails where the roof rack fits - water can get in here and run down the C pillar
Passenger Footwell
A leaking passenger footwell is quite possibly caused by a leaking pollen (or cabin) filter. The gasket around the base of the holder attached to the bulkhead goes hard and lets water in. Also, if the cover isn't on the holder properly, or if the filter is incorrectly fitted then water will leak in...
Mk3
On a Mk3 Mondeo, water ingress can also be caused by the foam insulating panel (between the interior door panel and the actual door itself) coming unstuck. There are two ways to fix this:
Using a hair dryer, try to reactivate the black sticky sealant, and reseal. Use regular silicon sealant (no-one will ever see it) and do the same.
Submitted by Monkeyra, funkyg, vince_121, ST_Willie and FlashBastd
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