2017 Mercedes-Benz S63 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Mercedes-Benz S63 AMG and How to Fix Them

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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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz S63 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 2017 Mercedes-Benz S63 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 steps should I take to diagnose the cruise control issue in my 2017 Mercedes-Benz S63 AMG?

To effectively diagnose the cruise control issue in your 2017 Mercedes-Benz S63 AMG, begin with the simplest solutions. Start by checking the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on your steering wheel to ensure they are operational, since faulty buttons can lead to malfunctions. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific problems within the cruise control system. Following this, examine the speed sensors, as they are essential for the cruise control's performance. Additionally, inspect the wiring connections related to the cruise control system for any signs of damage or loose connections. If all else fails, test the cruise control module itself, as a malfunctioning module can be the root cause of the problem. Should you still be unable to pinpoint the issue, it may be wise to consult a professional mechanic or an authorized Mercedes-Benz service center for expert assistance. By following this structured approach, you can systematically identify and address the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2017 Mercedes-Benz S63 AMG?

When troubleshooting the cruise control system in a 2017 Mercedes-Benz S63 AMG, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can interfere with the cruise control's operation, as this switch is crucial for disengaging the system when the brake pedal is pressed. Another potential culprit is a malfunctioning throttle actuator, which is responsible for controlling the engine's throttle opening; if it fails, the cruise control may struggle to maintain speed. Furthermore, a defective cruise control module can hinder the system's overall functionality, as it processes critical inputs from the driver. Lastly, electrical problems such as wiring issues or blown fuses can also contribute to the cruise control's failure. By identifying and addressing these common issues, DIY enthusiasts can effectively diagnose and potentially resolve the cruise control problems in their vehicle.

How urgent is it to address the malfunctioning cruise control in a 2017 Mercedes-Benz S63 AMG?

Addressing a malfunctioning cruise control in your 2017 Mercedes-Benz S63 AMG is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunction can lead to unexpected acceleration or deceleration, significantly increasing the risk of accidents on the road. Moreover, the enjoyment and ease of driving that cruise control provides can be severely compromised, detracting from the overall driving experience. Ignoring these symptoms can also result in more extensive damage to the vehicle's systems, leading to costly repairs down the line. Therefore, it is essential to prioritize the diagnosis and repair of cruise control issues to ensure both your safety and the longevity of your vehicle.

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