Where are the drainage holes on the BMW X1?

2 Answers
StBarrett
07/29/25 3:32am
BMW X1 drainage holes are located at the bottom of the doors, where there are two holes. Below is relevant information about automotive drainage holes: 1. Function: When the air conditioning is in use, the evaporator continuously absorbs moisture from the surrounding air during heat exchange, which condenses into water and is discharged through the air conditioning drainage hole. This is why there is often a puddle of water under the car after the air conditioning has been running for a while. 2. Causes of blockage: During the cooling process, the car air conditioning generates condensate, and the condensate pipe is located under the chassis. During the rainy season, exposure to mud and standing water can lead to drainage hole blockage, causing water to flow back into the car and resulting in water accumulation on the floor.
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RebeccaLee
08/12/25 7:22am
I usually enjoy pondering about cars, and the drainage holes on the BMW X1 are quite interesting. The sunroof has four drainage holes, located at the four corners of the sunroof tracks. When you open the sunroof, you can see small holes connected to hoses that direct rainwater to the underside of the car. Each door has a drainage hole near the bottom, close to the weatherstrip. After washing the car, remember to clear out leaves and mud to prevent blockages that could lead to water leaks. There’s also a small drainage hole under the fuel filler cap, allowing rainwater to escape. The AC drainage hole is hidden in the middle of the undercarriage near the passenger side, resembling a thin tube opening. If these areas get clogged, not only could your car turn into an aquarium, but water damage to the wiring would be even more troublesome. I make it a habit to use a thin wire to clear them out every month to keep them flowing smoothly.
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