2013 Mercedes-Benz CLS550 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2013 Mercedes-Benz CLS550

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Reviewed by
Devin Cabugcal
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 2013 Mercedes-Benz CLS550 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 CLS550 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What steps should I take to diagnose the non-functioning cruise control in my 2013 Mercedes-Benz CLS550?

To effectively diagnose the non-functioning cruise control in your 2013 Mercedes-Benz CLS550, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control system for any obvious malfunctions, such as defective components or sensors that may hinder its operation. Next, pay attention to common issues, particularly the condition of solder connections in the Cruise Control Controller, as old or cold solder joints can lead to failures. If these initial checks do not reveal the problem, conduct a thorough test of the system to pinpoint specific areas of malfunction. Utilizing a diagnostic scanner can also be invaluable; it allows you to scan for error codes that may indicate underlying issues. Additionally, ensure that the cruise control settings are correctly configured and activated, as incorrect settings can sometimes be the culprit. If these steps do not resolve the issue, it may be wise to consult a qualified mechanic or dealership experienced with Mercedes-Benz vehicles for a more comprehensive diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control problems.

What are the common problems that could cause the cruise control to stop working in a 2013 Mercedes-Benz CLS550?

When dealing with a malfunctioning cruise control system in a 2013 Mercedes-Benz CLS550, it's essential to understand the common problems that may be at play. One of the primary culprits is a defective brake pedal switch, which can inadvertently signal that the brakes are engaged, thereby disabling the cruise control. Additionally, issues with the control module, sensors, or switches can disrupt the communication necessary for the cruise control to function properly. Throttle actuation problems may also arise, where the throttle body fails to respond correctly to the cruise control commands. By identifying these potential issues, DIYers can take the first steps toward troubleshooting and possibly resolving the cruise control malfunction, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in a 2013 Mercedes-Benz CLS550?

When it comes to a non-functioning cruise control in a 2013 Mercedes-Benz CLS550, the urgency of addressing the issue cannot be overstated. While it may seem like a minor inconvenience, a malfunctioning cruise control system can signal deeper problems within the vehicle's electronic systems, potentially compromising overall performance and safety. For DIY enthusiasts, it’s crucial to recognize that ignoring this symptom could lead to more significant issues down the line, such as increased wear on the engine or transmission, which may result in costly repairs. Moreover, a malfunctioning cruise control can create safety hazards, particularly during long drives where maintaining a consistent speed is essential for driver fatigue management. Therefore, even if the problem does not seem immediately critical, it is advisable to investigate and resolve the issue promptly to ensure the vehicle operates safely and efficiently. Taking the time to diagnose and repair the cruise control system not only enhances the driving experience but also protects the integrity of the vehicle in the long run.

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