Water, the single most important resource everything needs for living, including mold. With all this rain we have been getting in the Northwest,  water  is your vehicles worst nightmare if you have a plugged up body drain. Most all vehicles have a unique plumbing system hidden inside and through out the headliner and interior trim panels running from the roof rails, sunroof, moonroof, trunk and windshield wiper cowling,  then emptying out at the bottom of the vehicle allowing the water to drain to the ground. The problem starts when the car is parked in the same spot under a tree or shrubbery that drops leaves, dirt, pine needles, flower pedals and other natural debris. During the summer and spring months when there is not as much rain, this debris tends to get washed into these drains a little at a time over a long period of time resulting in the plugging up of the body drain. When these drains get plugged up, water then backs up and has no where to go but inside the car, usually under the dash by the heater box, one of the ceiling mounted grab handles or into the trunk. You never know when it is going to happen until one day you find the carpet soaked with standing water. Once this happens, no amount of wet vacuuming will dry it out, the only option is to remove the complete interior of the vehicle and dry the carpeting and the mat out. If this is not done very soon after the leak has been remedied, the mold will start to grow and eventually take over the vehicle’s interior. An easy way to avoid this is when you are having your vehicle serviced at it’s normal oil change interval, make sure the service technician cleans out the debris that has collected under the hood and around the trunk or rear hatch seal. If you have a sun or moon roof, at least once a year you should have the car put up on a hoist and have all the drains blown out to  be sure that they are functioning properly when the rain comes.