
The drainage hole on the Audi A3 is located under the doors. Below is some relevant information about the Audi A3: Dimensions: The car has a length of 4292mm, width of 1765mm, height of 1423mm, and a wheelbase of 2578mm. Powertrain: The Audi A3 is equipped with two engines, one being a 1.4-liter turbocharged engine and the other a 2.0-liter turbocharged engine. The 1.4-liter turbocharged engine has a maximum power output of 110 kW, maximum torque of 250 Nm, with the maximum power achieved between 5000 to 6000 rpm and maximum torque between 1750 to 3000 rpm. The 2.0-liter turbocharged engine delivers a maximum power of 140 kW, maximum torque of 320 Nm, with the maximum power achieved at 5000 rpm and maximum torque between 1600 to 4000 rpm.

Having driven an Audi A3 for several years, I frequently deal with drainage holes. The main locations are in the engine compartment area below the windshield, where small holes can easily get clogged with leaves and accumulate water; there are also drainage holes at the bottom of the doors to let out water that gets inside. Small holes may also be designed near the edges of the trunk or the fuel tank cap. I remember during the last rainy season, the door leaked and got wet—upon checking, I found the hole was blocked by mud, so I carefully cleared it with a thin wire. Don’t forget the holes at the four corners of the sunroof either; just use compressed air to blow them out regularly. If neglected for too long, it can lead to rust or even mold in the interior, increasing repair costs. Make it a habit to check every six months and keep the car dry—it greatly benefits the vehicle’s longevity. Nowadays, finding the locations is easier, as online forums share specific methods.

As someone who's been around car dealerships for a long time, I recommend first checking the sunroof drainage holes. They're located in the four corner channels of the Audi A3's roof. There are also two or three small holes along the front edge of the hood beneath the windshield. The small notches at the very bottom of the doors are also key spots. Blocked drainage holes often lead to leaks or corrosion, and if discovered too late, they can turn into complicated repairs. Simple tools like compressed air cans can be used for cleaning – just remember to turn off the engine before starting, safety first. Parking near trees regularly makes these holes more prone to clogging, so developing a cleaning habit can save you a lot of trouble. While these designs are well-considered, maintenance shouldn't be taken lightly.

Car enthusiasts should pay attention to the drainage holes, which on the Audi A3 are mostly located at the lower edge of the windshield and small openings at the bottom of the doors. Improper cleaning can lead to water accumulation and rust, so regular unclogging is recommended.


