Plugged Drain Holes? Does anyone know where the drain holes are located on a 2004 cayenne? After leaving car outside in heavy rain, water accumulates in passenger side floor. In lighter rain, I hear a "swishing" sound under the car.

Could be a bad windshield gasket, door trim molding or rain water entering through the air vent intake duct work.

check the cowling at the base of the windshield outside the car by the hood. this can be plugged by debris and need to be cleaned out. if the water can`t drain out the drain holes it will have to go somewhere and that is usually inside the car. the cowling is one way outside air is passed into the car. you will have to remove the cowling to clean out and make sure the drain holes are not plugged.

Check for leafs that are blocking drain holes on both ends . Air inlet cowl in front of wind shield. This blockage would cause water to back up and enter the Hvac air inlet.

there should be drain holes that lets the water drain out check for them their most likely clogged

Is it antifreeze? If so, you have a hole in your heater core?

YOU HAVE DRAIN HOLES AT THE LOWER LEFT AND RIGHT COWL AND DRAIN HOLES AT THE BASE OF THE WINDSHIELD.CLEAN AWAY LEAVES AND ROAD GRIME STOP DRAIN HOLES UP.

Try running a hose on the driver's door window to see if the drain hoeles in the driver's door are plugged. Also check the drain holes in the rear window and trunk lid drains. If one of the drain holes is plugged the water will seek the next easiest way to drain (which might be to the iside of your VW Beetle.

do you have also water inside the car??

Your air conditioner water drain holes are blocked. Check the exit holes for water from the evaporator unit under the foot wells or dash unit. Through these holesor unblock these and the water will flow through to the outside

Hi, You need to check/ clean your sunroof drains. The best way to clean them is to use compressed air if you have access.