What Causes the Audi A4 Screen to Not Light Up?
2 Answers
Audi A4 screen displaying a black screen can be attributed to two main reasons: Failure to connect to power: The vehicle linkage may be disconnected, preventing proper power connection. Poor contact or intermittent wiring can hinder effective discharge device connection. In such cases, it is advisable to visit a vehicle electrical repair center or a professional auto repair shop for servicing. Extremely cold weather: Extremely cold temperatures may cause the battery to supply power inadequately. Insufficient memory or other factors could lead to system crashes, with memory capacity filled with junk or fully occupied, resulting in screen freezing and unresponsiveness. In this situation, pressing the start button on the main unit may help reboot the system.
I have an Audi A4, and last time the sudden blackout of the central control screen was really worrying. There could be many possible reasons, the most common being a blown fuse, which is located in the fuse box—you can find its position by referring to the owner's manual, and replacing it with a new one might fix the issue. It could also be a hardware failure in the screen, such as aging display components or loose connecting wires. You can try gently pressing the edges of the screen to check the contact points. Software glitches are also not uncommon; sometimes the system freezes, and in such cases, try turning off and restarting the engine a few times. If it happens on a rainy day, pay attention to the possibility of short circuits due to damp wiring. In any case, don't force it to work as it affects navigation safety. It's safer to go to a 4S shop for a diagnosis. Last time I did this, the screen lit up again.
