2014 Mercedes-Benz CL600 Cruise Control Isn't Working

Fixing Cruise Control Issues in 2014 Mercedes-Benz CL600

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 2014 Mercedes-Benz CL600 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.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2014 Mercedes-Benz CL600?

When troubleshooting the non-functional cruise control in a 2014 Mercedes-Benz CL600, it's essential to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown fuse can often be the simplest explanation for the malfunction. Next, inspect the cruise control switch for any signs of damage or wear, as this component is crucial for activating the system. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Additionally, examining the speed sensors is vital, as they directly influence the cruise control's performance. Finally, inspect the wiring and connections associated with the cruise control system for any loose connections or signs of corrosion. By following these steps in order, you can effectively narrow down the potential causes of the problem and take the necessary actions to restore functionality to your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2014 Mercedes-Benz CL600?

When troubleshooting the cruise control system in a 2014 Mercedes-Benz CL600, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging by failing to signal that the brakes are not applied. Additionally, issues with the speed sensor can result in inaccurate speed readings, causing the system to malfunction or disengage unexpectedly. Another potential problem is vacuum leaks, which can disrupt the cruise control's ability to maintain a constant speed. A defective cruise control module may also be at fault, leading to a complete lack of response to commands. Lastly, electrical problems, such as blown fuses or wiring issues, can significantly impact the operation of the cruise control system. By identifying and addressing these issues, DIY enthusiasts can effectively diagnose and potentially resolve cruise control problems in their vehicle.

How urgent is it to address the non-functioning cruise control in a 2014 Mercedes-Benz CL600?

When it comes to a non-functioning cruise control in a 2014 Mercedes-Benz CL600, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, neglecting this problem can lead to significant safety risks, especially during long drives where cruise control is typically utilized to maintain speed and reduce driver fatigue. A malfunctioning system may also signal deeper issues within the vehicle's electronics or sensors, potentially affecting other critical systems. Therefore, it is crucial to diagnose and repair the cruise control promptly, as doing so not only enhances the driving experience but also ensures the overall safety and reliability of your vehicle. Ignoring the symptoms could result in more extensive damage and costly repairs down the line, making timely intervention a wise choice for any conscientious driver.

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.