2022 Mercedes-Benz E350 Speedometer Isn't Working

Common Causes of Speedometer Malfunctions in Your 2022 Mercedes-Benz E350 and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
35% chance it's the
Vehicle Speed Sensor (VSS)
0%
28% chance it's the
Speedometer
0%
23% chance it's the
Electrical Issue
0%
14% chance it's
Something else
The most common reasons a 2022 Mercedes-Benz E350 speedometer isn't working are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue.
  • Vehicle Speed Sensor (VSS): A faulty vehicle speed sensor can result in inaccurate speed readings and erratic transmission shifting.
  • Speedometer: A faulty speed sensor or a broken connection in the speedometer circuit can result in inaccurate speed readings.
  • Electrical Issue: A blown fuse or a short circuit in the wiring can cause various electrical issues in the vehicle's systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when the speedometer of a 2022 Mercedes-Benz E350 isn't working?

When faced with a non-functioning speedometer in a 2022 Mercedes-Benz E350, it's essential to adopt a systematic diagnostic approach to identify the underlying issue effectively. Start by checking the fuse box for any blown fuses related to the instrument cluster, as this is a straightforward fix that can often resolve the problem. Next, inspect the speed sensor, which plays a crucial role in relaying speed data to the speedometer; any signs of damage or malfunction here could indicate the need for replacement. Utilizing a diagnostic scanner to check for error codes can provide further insights into the issue, helping to pinpoint specific faults within the system. Additionally, examine the wiring harness connected to the speedometer for any loose or corroded connections, as faulty wiring can disrupt the necessary signals. Finally, testing the instrument cluster itself ensures that all gauges are functioning correctly, as a malfunction in this area can also impact the speedometer's performance. By following these steps, you can effectively diagnose and address the speedometer issue, potentially saving time and money on repairs.

What are the common problems that could cause the speedometer to stop working in a 2022 Mercedes-Benz E350?

When troubleshooting a non-functioning speedometer in a 2022 Mercedes-Benz E350, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty speed sensor, which is responsible for relaying speed data to the instrument cluster. If this sensor malfunctions, it can lead to inaccurate readings or a complete failure of the speedometer. Additionally, issues within the instrument cluster itself can also cause the speedometer to stop working, as this is where the speedometer is housed. Electrical problems, such as blown fuses or wiring issues, can further complicate matters, disrupting the power supply to the speedometer. It's also worth checking the vehicle speed sensor, as a defect here can directly impact speedometer functionality. Lastly, inspect the wiring connected to the speedometer for any signs of damage or corrosion, as faulty wiring can prevent the speedometer from operating correctly. By systematically diagnosing these potential issues, DIY enthusiasts can effectively address the speedometer problem and restore functionality to their vehicle.

How urgent is it to repair the non-functioning speedometer in a 2022 Mercedes-Benz E350?

Addressing a non-functioning speedometer in your 2022 Mercedes-Benz E350 is not just a matter of convenience; it is a pressing issue that requires immediate attention. The speedometer plays a critical role in ensuring that you adhere to speed limits, thereby avoiding legal repercussions such as fines or license suspension. Moreover, driving without an accurate speed reading significantly heightens the risk of accidents, as you may inadvertently exceed safe speeds. This malfunction can also disrupt the vehicle's overall performance, as the speedometer is linked to various systems within the car. Ignoring this problem could lead to further complications, potentially resulting in costly repairs down the line. Additionally, maintaining all vehicle components, including the speedometer, is essential for preserving its resale value. Therefore, it is crucial to prioritize the repair of your speedometer to ensure safety, compliance, and optimal vehicle performance.

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2022 Mercedes-Benz E350 Speedometer Issues & Repairs