FAW-Volkswagen Audi Q3 Sunroof Severe Leakage: Solutions?

2 Answers
VanLila
07/24/25 6:09am
Below are the relevant solutions for the severe leakage issue in the FAW-Volkswagen Audi Q3 sunroof: 1. High-pressure water jet cleaning: Use a high-pressure water jet to blow the drainage holes and clear any blockages. When using a high-pressure water jet for car washing, avoid directly spraying water around the sunroof's sealing ring, as this may deform the seal under high pressure, leading to water leakage over time. 2. Syringe cleaning: Fill a syringe with clean water and inject it into the hose, repeating the process several times to clean. 3. Cleaning the outlet holes under the car: If the drainage holes are hidden or cannot be unclogged, locate the outlet holes under the car and start clearing from there. 4. Professional cleaning at a repair shop: If none of the above methods work, it is recommended to visit a professional car repair shop for expert assistance in clearing the blockage.
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KateAnn
08/11/25 1:54am
I've fixed quite a few Audi Q3 sunroof leakage issues, and clogged drainage holes are a major cause. When it rains heavily, the water can't drain out and flows into the car. First, use a small brush to clean the drainage hole openings around the sunroof—avoid using wire to prevent puncturing the tubes. Then, check if the sealing strips are aged or cracked; if they've hardened, they need to be replaced. If you can't handle it yourself, take it to the dealership immediately. The Q3 is often still under warranty, allowing for free replacement of sealing components. Otherwise, prolonged leakage can lead to moldy interiors or electrical short circuits, resulting in costly repairs—quite a hassle. Remember to perform preventive cleaning of the drainage holes before the rainy season to reduce the risk of clogging. Simple maintenance can save you a lot of trouble.
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