Originally Posted by
RS500/364
The seal behind this lets water thought silicon grease it and in the motor there a resistor normaly mucks up because of this change it its were the plug connects to the motor job done !
There isn't a problem if you use the seal that Ford provide when you change the filter!
If you don't water gets into the motor and siezes it! The resistor packs are a common failure, again water ingress with the fan can cause this,as you say!
Martin