What to Do When the BMW Sunroof Drain Hole is Clogged?

[VanJoy]

If the BMW sunroof drain hole is clogged, you can go to a 4S dealership to have it cleared using compressed air. Alternatively, you can use the "enema" method by connecting a syringe to an infusion tube and flushing the drain pipe, which should help clear the blockage.

[LaGriffin]

Last time, the sunroof drain holes on my BMW 5 Series got clogged, leaving a musty smell in the car, and I realized how annoying water leakage can be. The small holes along the edges of the sunroof are responsible for drainage and can easily get blocked by dust and leaves, causing rainwater to pour into the car and ruin the interior. I bought a can of compressed air, aimed it at the drain holes for a few seconds, and the debris shot right out—cost-effective and convenient. I recommend checking every six months, especially in autumn when there are more fallen leaves; try to park away from trees. During regular car washes, use a soft brush to clean the drain holes. Don’t wait until the rainy season to deal with it, or you’ll face sky-high repair costs for a soaked headliner. When doing it yourself, ensure the engine is off for safety, and seek professional help if needed. Since making it a habit, my sunroof hasn’t given me any trouble.