2013 Mercedes-Benz ML350 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2013 Mercedes-Benz ML350 and How to Fix Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2013 Mercedes-Benz ML350 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 2013 Mercedes-Benz ML350 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.

What are the steps to diagnose the non-functioning cruise control in a 2013 Mercedes-Benz ML350?

To effectively diagnose the non-functioning cruise control in your 2013 Mercedes-Benz ML350, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive and not stuck, as malfunctioning buttons can disrupt functionality. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying electronic issues. Following this, assess the speed sensors, which are vital for the cruise control system's operation; faulty sensors can prevent engagement. Additionally, inspect the brake pedal switch, as a malfunction here can disable cruise control for safety reasons. Finally, take a close look at the wiring and connections associated with the cruise control system, checking for any signs of damage or corrosion that could lead to malfunctions. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2013 Mercedes-Benz ML350?

When dealing with cruise control issues in a 2013 Mercedes-Benz ML350, it's essential to understand the common problems that may be at play. One frequent culprit is a defective brake pedal switch, which can inadvertently signal the system to disengage. Additionally, a dead battery can disrupt the electrical supply necessary for the cruise control to function properly. If the control module has failed, it may require replacement to restore functionality. Sensor or switch issues can also hinder performance, as they are critical for the system's operation. Lastly, throttle actuation problems can prevent the cruise control from maintaining speed. By identifying and addressing these potential issues, DIYers can effectively troubleshoot and potentially resolve cruise control malfunctions, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in a 2013 Mercedes-Benz ML350?

Addressing a malfunctioning cruise control in a 2013 Mercedes-Benz ML350 is crucial for several reasons. First and foremost, a faulty cruise control system can lead to unexpected acceleration or deceleration, which poses a significant safety risk while driving. This unpredictability can make it difficult to maintain control of the vehicle, especially in high-traffic situations or on highways. Additionally, neglecting this issue can diminish the overall driving experience, particularly on long trips where cruise control is often utilized for comfort and convenience. Furthermore, early intervention can prevent more extensive damage to the vehicle's systems, potentially saving you from costly repairs down the line. Therefore, while it may not seem as urgent as other automotive issues, addressing a malfunctioning cruise control promptly is essential for ensuring both safety and the longevity of your vehicle.

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