2014 Mercedes-Benz E63 AMG Cruise Control Isn't Working

Diagnosing Cruise Control Issues in Your 2014 Mercedes-Benz E63 AMG and How to Restore Functionality

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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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2014 Mercedes-Benz E63 AMG 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 2014 Mercedes-Benz E63 AMG 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.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What are the steps to diagnose the non-functional cruise control in a 2014 Mercedes-Benz E63 AMG?

When diagnosing the non-functional cruise control in a 2014 Mercedes-Benz E63 AMG, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by inspecting the cruise control fuse, as a blown fuse is a common culprit that can easily disrupt the system's operation. Next, examine the cruise control switch located on the steering wheel for any signs of wear or malfunction, as a defective switch may need replacement. Utilizing a diagnostic scanner to retrieve error codes from the vehicle's onboard computer can provide critical insights into potential problems affecting the cruise control system. Additionally, assess the speed sensors, which are vital for the cruise control's functionality; any faults here can lead to system failure. It's also important to inspect the wiring and connections related to the cruise control system for any damage, corrosion, or loose connections that could impede performance. Finally, test the cruise control module itself, as a malfunctioning module can prevent the system from engaging properly. If these steps do not yield results, seeking assistance from a professional mechanic or an authorized Mercedes-Benz service center is recommended. By adhering to this structured approach, you can effectively diagnose and resolve issues with your vehicle's cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2014 Mercedes-Benz E63 AMG?

When the cruise control in a 2014 Mercedes-Benz E63 AMG ceases to function, it can be frustrating for drivers who rely on this feature for long journeys. One of the primary culprits is a defective component or sensor within the cruise control system. This could include issues with the throttle position sensor, brake pedal switch, or even the cruise control module itself. If any of these components fail, the system may not receive the necessary signals to engage or maintain speed. Additionally, wiring problems or blown fuses can disrupt the electrical connections essential for the cruise control to operate. In some cases, the system may become imperative, meaning it cannot be activated due to a malfunction, which could stem from software glitches or a need for recalibration. For DIY enthusiasts, understanding these common problems is the first step in troubleshooting and potentially fixing the cruise control system, allowing for a more enjoyable driving experience.

How urgent is it to address the non-functioning cruise control in a 2014 Mercedes-Benz E63 AMG?

When it comes to the non-functioning cruise control in a 2014 Mercedes-Benz E63 AMG, addressing the issue promptly is essential for maintaining both the vehicle's performance and your driving comfort. While the malfunction may not present an immediate safety hazard, it can lead to increased driver fatigue during long trips, as the convenience of maintaining a steady speed is lost. Additionally, ignoring this problem could result in further complications within the vehicle's electrical system, potentially leading to more significant and costly repairs down the line. Therefore, it is advisable to consult a qualified mechanic or dealership as soon as possible to diagnose and resolve the issue, ensuring that your driving experience remains safe and enjoyable.

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