Join Date: Feb 2007
Nominated 16 Times in 67 Posts
TOTW/F/M Award(s): 28
Thanked 5,199 Times in 4,711 Posts
Water ingress via the pasenger footwell sounds more like blocked drains in the scuttle panel and I would expect the pollen filter has had a soaking along with the heater motor. It would be prudent to check the motor out first and this is best done on the bench.
I have never removed one but according to the Haynes manual it says "disconnect the wiring block connector and unclip the wiring loom from the assembly". Next "Undo the retaining bolts, twist the motor cover clockwise and then lowere the motor/cover assembly from the air distribution unit." Then "disconnect the motor wiring connector"
No guarantee it will work - just hope it may be of some assistance
Currently in madnoel10's garage:
Honda Civic 1.4l