2011 Mercedes-Benz E550 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2011 Mercedes-Benz E550 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 E550 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 E550 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-functional cruise control in a 2011 Mercedes-Benz E550?

When faced with a non-functional cruise control in your 2011 Mercedes-Benz E550, it's crucial to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown or damaged fuse can often be the simplest fix. Next, inspect the cruise control switch located on the steering wheel for any signs of wear or damage that could impede its operation. Ensure that the cruise control system is enabled in the vehicle's settings, as sometimes it may inadvertently be turned off. Utilizing a diagnostic scanner to check for any error codes or diagnostic trouble codes (DTCs) can provide valuable insights into underlying issues. Lastly, examine the vehicle's speed sensors to confirm they are functioning correctly, as accurate speed data is essential for the cruise control system to operate effectively. By following these steps, you can methodically troubleshoot and potentially resolve the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2011 Mercedes-Benz E550?

When the cruise control in your 2011 Mercedes-Benz E550 ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. 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 disrupt the cruise control's ability to maintain a constant speed, leading to its malfunction. Another potential problem is vacuum leaks within the system, which can hinder the cruise control's operation. Furthermore, a defective cruise control module may also be responsible for the failure, as it is essential for the system's overall functionality. Lastly, electrical problems, such as blown fuses or wiring issues, can significantly impact the cruise control system. By identifying these common issues, you can take the first steps toward troubleshooting and potentially restoring the cruise control functionality in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2011 Mercedes-Benz E550?

When it comes to a non-functioning cruise control in a 2011 Mercedes-Benz E550, the urgency of addressing the issue cannot be overstated. While it may seem like a minor inconvenience, neglecting this problem can lead to more significant safety risks and potential damage to the vehicle's electronic systems. Cruise control is designed to enhance driving comfort and efficiency, particularly during long trips, and its failure may indicate underlying issues that could affect other critical functions of the car. For DIY enthusiasts, it’s essential to recognize that while troubleshooting the cruise control system can be a rewarding challenge, it’s crucial to approach the task with caution. Begin by checking the fuses and connections, as these are common culprits for malfunction. However, if the problem persists, it may be wise to consult a professional mechanic to ensure that any deeper electronic issues are properly diagnosed and resolved. Addressing the cruise control issue promptly not only enhances your driving experience but also ensures the overall safety and reliability of your vehicle on the road.

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2011 Mercedes-Benz E550 Cruise Control Issues & Solutions