2011 Mercedes-Benz CL550 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2011 Mercedes-Benz CL550

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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 2011 Mercedes-Benz CL550 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 2011 Mercedes-Benz CL550 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2011 Mercedes-Benz CL550?

When faced with a non-functioning cruise control in a 2011 Mercedes-Benz CL550, it's crucial 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 on the steering wheel for any signs of damage or wear, as this component is vital for activating the system. Following this, examine the speed sensors, which are integral to the cruise control's operation; any malfunction here can disrupt functionality. Utilizing a diagnostic scanner to check for error codes can provide insights into underlying issues that may not be immediately visible. Additionally, ensure that the brake and clutch switches are operational, as these are designed to disengage the cruise control when either pedal is pressed. Finally, inspect the wiring and connections associated with the cruise control system for any loose connections or damage. By methodically following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2011 Mercedes-Benz CL550?

When troubleshooting the cruise control system in a 2011 Mercedes-Benz CL550, it's essential to understand the common problems that could lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the system from engaging if it fails to detect when the brake pedal is pressed. Additionally, issues with the speed sensor can result in inaccurate speed readings, causing the cruise control to malfunction or disengage unexpectedly. Another potential issue is vacuum leaks within the system, which can disrupt its 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 common problems, DIY enthusiasts can effectively diagnose and potentially resolve cruise control issues in their vehicle.

How urgent is it to address the non-functioning cruise control in a 2011 Mercedes-Benz CL550?

When it comes to a non-functioning cruise control in a 2011 Mercedes-Benz CL550, addressing the issue should not be overlooked, even if it may not seem as urgent as other critical vehicle problems. While the immediate safety risks may be lower compared to malfunctioning brakes or steering, a faulty cruise control system can signal deeper electronic or sensor issues that could compromise the vehicle's overall functionality. Ignoring this problem could lead to more significant repairs down the line, potentially increasing costs and affecting other systems in the car. Moreover, a properly functioning cruise control enhances driving comfort and fuel efficiency, making it a valuable feature for long trips. Therefore, for DIY enthusiasts, it is advisable to investigate and resolve any cruise control malfunctions promptly to maintain the vehicle's performance and ensure a safe driving experience.

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