How to Fix a Leaking Car Roof?
2 Answers
You can use a high-pressure water gun to blow air towards the drainage hole, then clear the blockage by blowing it open. Fill a syringe with water and inject it into the hose, repeating this process several times to clean it thoroughly. If the drainage hole is in a hidden location or cannot be cleaned easily, you can locate the drainage hole from the bottom of the car and then clean it from there. There is an outlet on the car sunroof's track, with one on each side. Pour water into this outlet to check if the drainage pipe is clear.
Having driven for decades, I've encountered roof leaks several times, and experience tells me thorough troubleshooting is essential. Leaks often originate from sunroofs or roof seams, possibly due to aged or deformed sealing strips, or clogged drainage tubes from leaves and mud. First, park the car securely, check if the sunroof is fully closed, and use a flashlight to inspect for cracks or signs of adhesive failure. Drainage outlets are typically at sunroof corners or under the car—gently unclog them with a thin wire, avoiding forceful actions to prevent pipe damage. I've temporarily patched gaps with automotive-grade adhesive, which works short-term. However, older cars are more prone to issues; accumulated water can corrode the frame or cause electrical shorts, so prompt action is crucial. Regularly clean sunroof tracks and drainage systems during maintenance to prevent problems. If DIY fixes fail, promptly visit a reliable repair shop for new parts replacement.
