There is a drain hose in the base of the ac chamber that drains condensate out under the car. This hose blocks up with gunk from inside the car ( looks like black slimy moss) and the water cannot get away. You will have to disconnect the hose of the chamber and clean both the hose and the fitting back into the chamber.
SOURCE: leak onto floor passenger side from neck of ac drain through firewall
It's not your heater core. If your heater core is out it would leak antifreeze. My wife's 97 Grand Cherokee had the same problem. It is condensation from your AC coming leaking through a round hole in the AC unit at the firewall. Pull the carpet back and dry out underneath it, there will be a lot of water and we had to leave the carpet pulled back with a fan blowing on it all weekend to dry out. I fixed this about 8 years ago so if I remember correctly, the was a plastic part of the AC at the firewall that had a hole in it that the water was coming out of, I could see leaves and debris in the hole so I know it was part of the drain system. I cleaned out what debris I could and used a cone shaped peice of rubber and twisted it in to plug the hole and tapped over the plug to ensure that it wouldn't back out with vibrations, etc. After you dry everything off start the engine and turn the AC on max, you'll be able to see the where the water is leaking from after the AC gets cold. Hope this helps, it drove us nuts for a year before we figured it out and the wet carpet smell wasn't pleasant.
SOURCE: I have a 2001 eclipse. Water leaking onto driver
I recently had this repaired. As it turns out, the evaporation reservoir separated from the firewall. I was fortunate enough to have a good mechanic that completely diassembled my dash to locate the leak. He did not make up some lame diagnosis. I was unfortunate enough to have to pay for the extensive work, but it is worth it. He resealed the heater core compartment to allow the water to drain out properly. I spent many hours searching for an answer in the internet. this is the only solution that I know of.
SOURCE: AC drained into blower motor...replaced moter and now wont work
Did you check the blower motor before installation?Check for a blown fuse,and a bad relay,also check the blower motor resister.I hope this was some help.
Testimonial: "Turned out to be a heater blower relay."
SOURCE: fuse box diagram for a 2004 BMW 325ci
Fuses & RelaysThe fuse box is located under the engine hood on the left side, near the upper strut housing or near the battery.
Various relays are also mounted on the fuse box for easy accessibility.
Flashers
The flashers are located behind the bottom center of the lower instrument trim panel.
Review the...
- BMW E36 Fuse Box Relay Layout
- 325ci Owners Manual
Hope helped.
SOURCE: i need to replace my fuel pump for my 2004 bmw 325ci coupe
Location is in the Tank of the car you might want a Pro to do this it is not safe for unexpierianced hands you can get gas in your eyes while serviceing such unless you empty the tank of contence before service you will find the area after you drop the tank to the floor it has various hoses and cable leads disconect them with precaution and note where they are for return in the future also if needed take pictures these will help to reconnect when you are done
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