Where is the fuse box of Audi A3?
4 Answers
Audi A3 fuse box is located inside the cover panel above the driver's footwell. The fuses in the car are used to cut off faulty circuits. If a fuse blows, the electrical components and their functions connected to it will malfunction. Extended information: I. Steps to replace a fuse: 1. Before locating the fuse box, for safety reasons, please turn off the engine and power supply. 2. Correctly locate the fuse box position, use a pry bar to open the partition panel, and the inside of the cover clearly indicates the number of each component. 3. Use a light to check if the corresponding fuse is damaged, and replace it if it is blown. 4. Replacement can only be done with a fuse of the same current intensity (indicated by the same color and same printed text) and the same size. 5. After replacement, check whether the corresponding component is working, otherwise send it to a repair shop in time. II. Precautions related to fuses: 1. Installing fuses of different specifications in the same position may cause a fire. 2. Installing a fuse with a current rating higher than the rated current can easily overload and damage the component. 3. Do not splice disconnected fuses. 4. Items such as metal wires cannot replace fuses.
Last time the cigarette lighter in my Audi A3 suddenly lost power, I spent a long time figuring out the location of the fuse box. The A3 has two fuse boxes: one is in the engine compartment—after opening the hood, there's a black plastic cover on the left near the windshield, which you can lift to access; the other is in front of the driver's left knee. You need to move the seat all the way back and look down at the storage compartment on the lower left of the dashboard, where there's a removable panel hidden inside. I once replaced the wiper fuse myself using just a small screwdriver. Remember to be gentle when prying open the plastic cover—Audi's clips are particularly prone to breaking. By the way, for daily fuse checks, it’s more convenient to start with the one in the cabin, especially when the engine is off, as it’s safer and avoids touching hot components in the engine bay.
As a mechanic who frequently works on German cars, I must remind you that the Audi A3's fuse box design is quite typical. The one in the cabin is hidden in the lower left corner of the dashboard, right where your knees face the steering wheel. You can pop open the plastic cover with your fingernail to access the fuse puller. The engine compartment fuse box is located near the left front strut tower, marked with a battery symbol on a gray-black box - opening its lid requires some finesse. Having replaced many blown fuses for customers, I'll highlight this: there's a red main relay in the A3's engine compartment fuse box that often causes trouble when door locks malfunction. Also note that older models might have slightly adjusted fuse box locations, but the basic layout hasn't changed significantly in over a decade.
When my friend with an A3 asks about the fuse box, I just take a photo to point out the location. The most commonly used one is on the driver's side—just lean over and you'll see a small square cover in the corner of the dashboard. If you need to find the one in the engine bay, open the hood and look towards the front left corner; it's the black box standing next to the coolant reservoir. Once my dashcam fuse blew, and I replaced it myself in just two minutes. Friendly reminder: Always turn off the engine and remove the key before working; don't pull fuses with bare hands—use the plastic tweezers provided with the car; keep a few spare 5A/10A fuses in the glove box.
