2007 Mercedes-Benz ML63 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in 2007 Mercedes-Benz ML63 AMG

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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 2007 Mercedes-Benz ML63 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 2007 Mercedes-Benz ML63 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-functioning cruise control in a 2007 Mercedes-Benz ML63 AMG?

To effectively diagnose the non-functioning cruise control in your 2007 Mercedes-Benz ML63 AMG, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive; faulty buttons can prevent engagement. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying electronic issues. Additionally, verify the functionality of the speed sensors, as they are essential for the cruise control system to operate correctly. Don’t overlook the brake and clutch switches, as malfunctioning components here can also inhibit cruise control activation. If these preliminary checks do not resolve the issue, testing the cruise control module is the next step, as a defective module may be the root cause of the problem. Should you find yourself unable to identify the issue after these steps, seeking assistance from a professional mechanic or an authorized Mercedes-Benz service center is recommended to ensure a thorough diagnosis and repair. This structured approach not only saves time but also enhances the likelihood of successfully restoring your cruise control functionality.

What are the common problems that could cause the cruise control to stop working in a 2007 Mercedes-Benz ML63 AMG?

When the cruise control in your 2007 Mercedes-Benz ML63 AMG 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 may fail to signal the cruise control system when the brake pedal is pressed, thereby preventing engagement. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to operational failures. Vacuum leaks are another concern, as they can interfere with the cruise control's functionality by disrupting the necessary pressure within the system. Furthermore, a defective cruise control module can also be responsible for the malfunction, as it is the central component that controls the system's operations. Lastly, electrical problems, such as blown fuses or damaged wiring, can significantly impact the cruise control's performance. By systematically checking these areas, you can effectively troubleshoot and potentially resolve the issues plaguing your cruise control system.

How urgent is it to address the non-functioning cruise control in a 2007 Mercedes-Benz ML63 AMG?

When it comes to a non-functioning cruise control in a 2007 Mercedes-Benz ML63 AMG, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, neglecting this problem can lead to more significant complications down the line. A malfunctioning cruise control system often indicates underlying issues within the vehicle's electronics or mechanical components, which, if left unchecked, could escalate into costly repairs or even compromise the vehicle's safety. Moreover, the cruise control feature is designed to enhance driving comfort and efficiency, particularly during long trips; its absence can lead to increased driver fatigue and reduced fuel efficiency. Therefore, it is crucial to prioritize the inspection and repair of the cruise control system by a qualified mechanic or dealership. This proactive approach not only ensures the vehicle's optimal performance but also safeguards against potential safety hazards on the road, making it a wise decision for any conscientious driver.

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