Where is the sunroof C-pillar drain hole located on the Tiguan?
3 Answers
Tiguan sunroof C-pillar drain hole location: There are four holes at each corner of the sunroof, which serve as the C-pillar drain holes. The sunroof sealing strip is made of rubber material and may age over time. Repeated friction from the sunroof glass can cause damage, leading to poor sealing and potential water leakage during rainy weather. Regular inspection of the sealing strip's aging condition is recommended, and timely replacement is necessary if damage occurs. The Tiguan is Volkswagen's first domestically produced SUV, with dimensions of 4506mm in length, 1809mm in width, and 1685mm in height, and a wheelbase of 2684mm. In terms of safety features, the Tiguan comes standard with ESP electronic stability program, EBD electronic brake-force distribution, and ASR traction control system across all models.
I've been driving a Tiguan for several years, and one time after heavy rain, I found the rear seats soaked, which was really upsetting. It turned out the sunroof was leaking because the drainage hole in the C-pillar was clogged. The drainage hole is located on the C-pillar, specifically at the bottom of the rear pillar on the inner side of the car, hidden beneath the trim panel. At the time, I removed some panels above the rear door and saw the small hole blocked by leaves. This is a crucial part of the sunroof design, responsible for diverting rainwater and preventing accumulation. After cleaning it, I used a thin wire to poke it regularly to keep it clear. Remember, the C-pillar drainage hole has a fixed location but is easily overlooked. Blockage can lead to mold inside the car or corrosion of the frame. I recommend checking it during annual maintenance, especially before the rainy season to prevent issues in advance.
I've studied the sunroof system of the Tiguan, and the design of the C-pillar drainage holes is quite ingenious. They're positioned at the bottom inner edge of the C-pillar, near the corner of the rear door, and you'll need to lift the interior trim or headliner to reveal them. These small holes connect to a hose that channels water from the sunroof gutter out to the undercarriage. If clogged, rainwater can back up and soak the headliner or even damage the carpet. To locate them, simply start from the C-pillar area inside the car and explore carefully. For maintenance, prevent debris buildup and use a slender tool to gently clear any blockages. Regular checks to ensure proper function can save you a lot of hassle and repair costs.
