I had a problem with water coming down from the liner in the back of my 02 OBW during and after rains. I let it sit outside one particularly rainy day to find about 2 cups of water in the mat in the cargo area. I was not happy about this, here is my journey to finding the problem.
First, what the problem turned out to be was a plugged drain hose that was backing up the system and water was overflowing out of the canal into the interior of my OBW- not good.
Ok, here goes:
Find what side has the plug- pour some water down the farthest outside rail on your sunroof. you can see the hole for the front drain if you use a light, but good luck seeing the back drain- trust me- it is there.
I tested all 4 drains and had only one of them plugged. I knew it was the right rear drain. The water should come out behind the respective tire
first, take out the flooring in the cargo area, and start taking off the sides where you have the plugged hose. then start pulling down the ceiling. My car looked like this.
You will find the top drain coming out of a black plastic piece the hose is clear and is about 1/2" thick.
It goes through the car body until you can see it at the bottom just before it goes into the drain. Look behind the plastic storage area on the side.
This is the one you want.
Pull out the hose, it is not held in by anything but gravity.
Here is how mine looked
Nice- huh?
I took a coat hanger and cleaned it out. Put the hose back in place and did the water test again on that drain and it worked!
Water test
Good luck.
First, what the problem turned out to be was a plugged drain hose that was backing up the system and water was overflowing out of the canal into the interior of my OBW- not good.
Ok, here goes:
Find what side has the plug- pour some water down the farthest outside rail on your sunroof. you can see the hole for the front drain if you use a light, but good luck seeing the back drain- trust me- it is there.
I tested all 4 drains and had only one of them plugged. I knew it was the right rear drain. The water should come out behind the respective tire
first, take out the flooring in the cargo area, and start taking off the sides where you have the plugged hose. then start pulling down the ceiling. My car looked like this.
You will find the top drain coming out of a black plastic piece the hose is clear and is about 1/2" thick.
It goes through the car body until you can see it at the bottom just before it goes into the drain. Look behind the plastic storage area on the side.
Pull out the hose, it is not held in by anything but gravity.
Here is how mine looked
Nice- huh?
I took a coat hanger and cleaned it out. Put the hose back in place and did the water test again on that drain and it worked!
Water test
Good luck.