Where is the headlight fuse located in an Audi A4?
2 Answers
Audi A4L fuses are located at the upper and lower front ends of the dashboard and behind the right side trim panel in the trunk. When replacing a fuse, the data on the replacement fuse must match that of the faulty fuse. Before replacing a fuse, turn off the corresponding switch and the ignition switch. The fuse should only be replaced after the cause of the fault has been eliminated. Fuse Box: The automotive fuse box is a container used for installing car fuses. Based on the size of the fuses, it can be categorized into small automotive fuse boxes, medium automotive fuse boxes, and large automotive fuse boxes. Fuse Box Selection: Common injection molding materials include PBT engineering plastics, each with different properties and varying degrees of heat resistance. When selecting an automotive fuse box, consider the current rating of the automotive fuse being used and the size requirements of the fuse to choose the appropriate fuse box.
I also encountered the issue of Audi A4 headlights not working last time and specifically checked the repair manual. The headlight fuses are generally located in two places: one is the fuse box above the driver's left foot, which can be accessed by prying open the small plastic cover on the left side of the steering wheel; the other is in the engine compartment, where there's a black square box at the front left corner after opening the hood. The low beam and high beam fuses are usually separate, and the back of the fuse box cover has a diagram indicating that numbers like F29/F30 correspond to different lighting functions. When replacing them yourself, remember to turn off the engine and disconnect the power, use a dedicated small clip to remove the blown fuse and check if the metal wire inside is broken—don't use ordinary wire as a substitute. For A4 models after the 2020 version, the headlight fuses might have been relocated to the fuse rack next to the battery in the trunk. It's best to take a photo of the original position with your phone before replacement to avoid inserting it into the wrong slot.
