4 Causes of Mercedes Screen Not Working

Imagine you’re cruising down the road, enjoying the luxury of your Mercedes, when suddenly, your screen stops working. It can be a confusing and frustrating situation. There are several reasons why your Mercedes screen may not be functioning correctly, and it’s essential to understand these issues to find the best solution.

Some common causes of a non-working Mercedes screen include malfunctioning screen displays, faulty software, or system updates. We’re here to help you navigate the potential problems and solutions for your Mercedes screen. In the next paragraphs, we’ll discuss the possible reasons and the steps you can take to resolve them.

Common Issues Causing Mercedes Screen Failure

Several factors can lead to your Mercedes screen not working. Here, we will focus on some common issues that might be causing screen failure and how to address them.

Loose connections

Loose connections can result in an intermittent or complete loss of screen function. Make sure to check the wiring and connections at the back of the screen. If you notice any loose or damaged cables, it is crucial to secure or replace them as necessary. You can also consult your vehicle’s manual or a professional technician for more information on proper handling of such issues.

Faulty hardware or software

Faulty hardware or software is another possible cause of screen failure. Dead pixels, backlight issues, or a faulty display controller can lead to malfunctioning displays. In some cases, updating the software or system might help to resolve these problems. Otherwise, you might need to replace the affected components or seek assistance from a reliable technician.

Power button malfunction

Another potential issue could be a malfunctioning power button. If your screen does not turn on or off when pressing the power button, it could be that the button itself is faulty. In this case, you might need to have it inspected by a professional technician to determine whether it needs to be repaired or replaced.

Blown fuse

Lastly, consider checking the display fuse. A blown fuse can also cause the screen to become unresponsive or not power on. Locate the specific fuse for the display in your car’s fuse box and inspect if it has blown. If you find the fuse to be faulty, you can replace it with a new one of the same rating.

How to Fix Mercedes Screen Problems

Checking Fuse and Electronics

To begin with, check the fuse and electronics associated with your Mercedes screen. A blown fuse could be the root cause of the problem. Locate the fuse box in your vehicle, typically found under the dashboard or in the engine compartment. Consult your vehicle’s manual to identify the specific fuse for the screen. If the fuse appears damaged, replace it with one of the same rating.

Additionally, inspect the wiring and electronic connections related to the screen. Look for any loose or damaged connections that may be causing the issue.

Resetting the Screen

In some cases, your Mercedes screen might simply need a reset. This can be done by turning off your vehicle, locking, and waiting for a while. After a few seconds, unlock your car and restart the engine. This may resolve the issue by rebooting the screen’s software. Another method is to reset the screen by pressing and holding the power button until it turns off, then pressing it again to turn it back on. For certain models, you may need to call your dealership’s service department to walk you through a specific reset procedure.

Inspecting Display Screen Connections

Lastly, it’s crucial to inspect the display screen connections. Problems with the display screen, such as dead pixels, backlight issues, or a faulty display controller, can cause the screen to malfunction. To inspect the connections, you may need to remove the screen or gain access to its back panel. Check for any loose or damaged connections and ensure all cables are securely connected.

Rebooting the Mercedes Navigation Screen

Sometimes, your Mercedes navigation screen might not work as expected, and a simple reboot can fix the issue. In this section, we’ll explore two methods to reboot your navigation system: “Using the Eject and Volume Knob Combo” and “Performing a Manual Reboot”.

Using the Eject and Volume Knob Combo

One approach to rebooting the navigation screen involves using a combination of the eject button and the volume knob. Here are the steps you need to follow:

  1. Turn off your car’s ignition and ensure the vehicle is in a stationary position.
  2. Locate the eject button on the CD player and the volume knob on the infotainment control panel.
  3. Press and hold the eject button while simultaneously turning the volume knob counterclockwise.
  4. Hold both buttons for approximately 10 seconds until the screen powers off and then displays the Mercedes-Benz logo.

This method can help you successfully soft reset your MBUX infotainment system and resolve any issues you may be experiencing with your navigation screen.

Performing a Manual Reboot

In case the eject and volume knob combo doesn’t work, you can try performing a manual reboot. Here is a step-by-step guide to help you with the process:

  1. Turn off the vehicle completely and wait for a few minutes.
  2. Locate the infotainment system’s fuse box, which is usually located in the trunk, under the hood, or behind the glove box.
  3. Find the fuse that corresponds to the navigation system. You might need to consult your owner’s manual for accurate information.
  4. Carefully remove the fuse for the navigation system, wait for 30 seconds, and then reinsert it into the fuse box.
  5. Start your car and check if the navigation screen is functioning correctly.

Warranty and Replacement Procedures

When you encounter a situation where your Mercedes screen is not working, it’s essential to understand the warranty and replacement procedures. If your vehicle is still under warranty, you may be able to have the issue resolved at no cost to you. The New Vehicle Warranty covers many aspects of your car, including the electronics and display components.

Firstly, you’ll need to check if your vehicle’s warranty is still valid. Mercedes-Benz typically offers a 4-year/50,000-mile warranty for its vehicles, including screens and electronics. If you’re still within these limits, it’s time to consult your authorized Mercedes-Benz Dealership. They can provide information about the warranty coverage for your screen issue and guide you through the replacement process.

If the display screen is confirmed to be defective and needs replacement, keep in mind that the screen is often part of the Instrument Cluster. According to a Mercedes-Benz forum, it cannot be replaced separately. In this case, you might need to replace the entire Instrument Cluster, which costs around $600. Additionally, the new part must be programmed to your vehicle, incurring extra programming and labor costs.

For those instances where the problem lies within the software or system updates, a visit to your Mercedes-Benz dealer could help in diagnosing and solving the problem. They’re equipped to handle such issues and can assist you with any necessary software updates or repairs.

It’s crucial to remember not to use non-Mercedes-Benz parts, as their usage might affect your warranty coverage. Authentic Mercedes-Benz vehicle service parts and accessories are covered under the Mercedes-Benz Vehicle Service Parts and Accessories Limited Warranty.


In summary, there are various reasons why your Mercedes screen may not be working, ranging from malfunctioning display issues to faulty software or system updates. To diagnose and fix the problem, consider contacting your dealer for guidance or trying a reset procedure. Remember, you’re not alone in facing this issue, and getting help can lead to a smoother driving experience.

  • Eric Williams

    I'm the founder of Daily Car Tips. I wrote articles in the automotive industry for more than 10 years, published in USA and Europe. I love sharing my knowledge and insights with fellow enthusiasts. Join me on this journey as we explore the exciting world of cars together!

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