BMW M5 Speedometer Isn't Working

Troubleshooting Common Issues with the Speedometer in Your BMW M5 and How to Fix Them

Find Repair Location
Reviewed by
Aisha
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 BMW M5 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.

Troubleshooting a Non-Working Speedometer in a BMW M5

When troubleshooting a non-working speedometer in a BMW M5, it's crucial to adopt a methodical diagnostic approach. Start by inspecting the speed sensor, as it is often the primary culprit behind speedometer failures. A faulty speed sensor can disrupt the signal necessary for accurate speed readings, so checking its functionality should be your first step. Next, examine the wiring connected to the speed sensor and the speedometer; damaged or frayed wires can lead to signal loss and should be repaired or replaced as needed. If these components are functioning correctly, investigate the speedometer itself for any broken gears that may prevent it from displaying speed accurately. Additionally, consider the condition of the wheel speed sensor, as issues here can also affect the speedometer's performance. If both the speedometer and odometer are non-functional, replacing the speed sensor located near the transmission may resolve the issue. However, if only the odometer is malfunctioning, the problem may lie within the internal gears of the odometer. By following this structured approach, you can effectively diagnose and potentially fix the speedometer issue in your BMW M5, ensuring a smoother driving experience.

What to Check When the Speedometer Isn't Working in a BMW M5?

When your BMW M5's speedometer stops functioning, it can be frustrating, but several common issues may be at play. Start by examining the speed sensor, as a malfunction here is often the primary culprit. If the speed sensor appears to be in good condition, turn your attention to the speedometer gear; a broken gear can disrupt the speedometer's operation. Additionally, inspect the wiring for any signs of damage or wear, as compromised wiring can lead to connectivity issues. The wheel speed sensor, particularly on the left rear wheel, is another critical component to check, as a failure here can directly affect speedometer readings. Don't overlook the ABS sensor located at the rear of the vehicle, as it can also contribute to speedometer problems. Lastly, ensure that the fuses related to the speedometer system are intact, as a blown fuse could be the simplest explanation for the malfunction. By systematically checking these components, you can effectively diagnose and potentially resolve the speedometer issue in your BMW M5.

Why is the Speedometer Not Working in a BMW M5?

When the speedometer in your BMW M5 stops functioning, it’s crucial to address the issue promptly due to the potential safety risks involved. A malfunctioning speedometer can lead to driving at incorrect speeds, which not only increases the likelihood of accidents but can also result in legal citations for speeding. Common culprits behind this problem include a faulty vehicle speed sensor (VSS), issues with the speedometer itself, or electrical malfunctions. Specifically, a bad wheel speed sensor, often located at the left rear wheel, is frequently the source of the problem. While replacing the speed sensor may provide a temporary fix, the issue can resurface if other underlying problems, such as damaged wiring or blown fuses in the instrument cluster, are not addressed. Therefore, it is essential to diagnose and repair speedometer issues as soon as they arise to ensure safe driving and prevent further damage to your vehicle.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.