Volvo: 1999 S80 interior - water in rear floor, drain tube, c drain

Question
1999 S80 - I get considerable water in the pass.side rear floor. I ran water in the sunroof channels and they drain, but i think that there may be a drain tube in the pillar that may be leaking???
is there a tube in there and what is the best way to get at it??

Answer
Lou,
If you tested the sun roof and not a leak or trickle showed up I would look elsewhere. I have seen the A/C drain tube clog and then condensation will build up and leak, and if there is the possibility it is anti freeze on the floor the heater core.
Getting back to the sun roof drains the two rear drains should go out through the truck rear wheel area. You might try pouring some water in the tracks and watch under the car for the drain tube, or search it out and try some air pressure to blow it clean.