The usual cause is a mixture of a poor cowl panel design.
Ford flex window leaking in door.
The 2014 ford flex has 5 problems reported for side rear window shattered.
I think its a design flaw.
Whenever it rains which is a lot in the summer in alabama my ranger is leaking down through the rear window.
Bartow ford company since 1948.
The 2009 ford flex has 1 problems reported for door window seals leak.
My truck has been in the shop 3 times and they tried adjusting the doors and then tried replacing the weather stripping.
Average failure mileage is 400 miles.
It leaks at a pretty good steady drip and soaks the rear suicide seat on the back right side.
One owner reports i hope ford comes up with a fix for this.
Authorized ford parts reseller usa.
The focus mk1 has a common problem with water getting in the cabin and ending up soaking the carpet.
One thing that you should know while shopping for a ford door seal weatherstrip or car window seal is the difference between oem and oe replacement parts.
None of this helped.