Mercedes-Benz Metris Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Mercedes-Benz Metris and How to Fix Them

Find Repair Location
Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Mercedes-Benz Metris cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
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.

How much does it cost to fix a Mercedes-Benz Metris cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

Troubleshooting Cruise Control Issues in a Mercedes-Benz Metris

When troubleshooting cruise control issues in your Mercedes-Benz Metris, it's essential to adopt a systematic diagnostic approach. Begin by checking the control module, throttle, and sensors, as these are often the primary culprits behind malfunctioning cruise control systems. If your vehicle displays a warning message indicating that the cruise control is inoperative, this is a clear sign that something is amiss. Next, inspect the brake pedal switch, which is crucial for the cruise control to engage; a faulty switch can prevent the system from activating. If you have installed aftermarket components, consider that they may not be compatible with the factory cruise control system, potentially requiring costly replacements. Additionally, pay attention to the digital features of your cruise control; if the set speed is not displayed correctly, there may be issues with the display or wiring. By following this methodical approach, you can effectively identify and address the root cause of your cruise control issues, making your DIY troubleshooting efforts more successful.

What Are the Common Causes of Cruise Control Malfunction in a Mercedes-Benz Metris?

When dealing with cruise control malfunctions in a Mercedes-Benz Metris, it's essential to recognize the various common problems that could be at play. One of the primary culprits is often a failed control module, sensor, or switch, which can disrupt the entire cruise control system. Additionally, throttle actuation issues may prevent the system from maintaining the desired speed. A defective brake pedal switch is another frequent issue, as it can inadvertently signal that the brakes are engaged, thereby disabling cruise control. Environmental factors, such as rainy weather, can also impact functionality, sometimes triggering a "Cruise Control Inoperative" message. Furthermore, intermittent operation may suggest underlying electronic or mechanical problems, while a dead battery or faulty ABS wheel speed sensor can contribute to the malfunction. Lastly, if the set speed fails to display when activating the cruise control, it may indicate a display issue rather than a problem with the control assembly itself. Understanding these potential issues can empower DIYers to diagnose and address cruise control problems more effectively.

Why is the Cruise Control Not Working in a Mercedes-Benz Metris?

When cruise control malfunctions in your Mercedes-Benz Metris, it’s crucial to address the issue without delay. Ignoring symptoms such as erratic behavior or error messages can lead to more significant problems, including safety risks while driving. For instance, a faulty brake pedal switch or a malfunctioning throttle position sensor can not only prevent cruise control from engaging but may also affect your vehicle's overall performance, potentially leading to erratic acceleration or braking. Additionally, if the Electronic Stability Program (ESP) is compromised, it can disable cruise control, which is particularly concerning during long drives or highway travel where maintaining a steady speed is essential for safety. Furthermore, unresolved issues can escalate, resulting in costly repairs down the line. Therefore, if you notice any signs of cruise control failure, it is advisable to seek professional inspection and repair to ensure your vehicle remains safe and reliable on the road.

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.