What to do if the Mazda 6 sunroof drain is clogged?
2 Answers
The main cause of sunroof leakage is the blockage of the car sunroof drain holes by leaves, dirt, etc., and often the car wash staff do not clean them thoroughly. The rear drain holes of the car sunroof are generally quite hidden, usually located at the four corners of the sunroof. You can find a 6mm iron wire or other metal tool (usually blocked by dust and mud). Use the iron wire to poke open the drain hole, or combine it with tools like an air gun to blow air into the drain hole to clear the sunroof drainage pipe, then pour water over it.
As an ordinary car owner who often works on my own car, I find a clogged sunroof drain to be quite a nuisance. I've had this issue on my car before, mostly caused by accumulated leaves or dust. It's not too difficult to handle, but the key is to follow clear steps: First, park the car on level ground, then locate the small drain holes near the sunroof, usually at the corners of the roof. I usually use a thin wire to gently unclog it or blow compressed air from an air compressor through the inlet. After unclogging, test the flow with a thin hose by pouring water to check if it drains smoothly—the outlet is usually near the front wheels. If it's still clogged, you might need to clean the outlet area, which could be blocked by mud. Be careful not to damage the tubes during the process. After finishing, I recommend checking it annually to prevent future issues and avoid water leakage damaging the interior, which could cost you unnecessary repairs. Also, try to park away from trees to reduce the risk of debris buildup.
