Why servicing your Drains is important for your VW/BMW/Audi WHAT ARE DRAINS/PASSAGES AND WHY DO I NEED THEM CLEANED? First off lets get the terminology straight.  Passages, Ducts, or Drains are interchangeable terms to describe a series of tubes and passages within the frame of your car specifically designed to channel water that lands on your roof and windshield down to the street below.                         Cleaning out these passages to keep them free from obstructions and clogs is absolutely essential for keeping your VW in good working order.  Falling leaves, flowers, dust, dirty and other objects accumulate in and around these passages over time. Should any of these passages on your Volkswagen become clogged, water that normally flows down to the street can be redirected to the interior of your car, causing not only a musty wet smell that is unhealthy, but also electrical issues. The wiring harness on ... read more