2017 Mercedes-Benz SL63 AMG Cruise Control Isn't Working

Diagnosing Common Issues with Cruise Control in Your 2017 Mercedes-Benz SL63 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz SL63 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 SL63 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.

What steps should I take to diagnose the non-functioning cruise control in my 2017 Mercedes-Benz SL63 AMG?

To effectively diagnose the non-functioning cruise control in your 2017 Mercedes-Benz SL63 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse is a common and easily rectifiable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive and functioning correctly, as any malfunction here can directly impact cruise control performance. Utilizing a diagnostic scanner to check for error codes in the vehicle's computer system can provide critical insights into underlying issues. Pay close attention to the speed sensors, as they are essential for the cruise control to engage properly; faulty sensors can disrupt this function. Additionally, verify that the brake and clutch switches are operational, since these components are designed to disable cruise control for safety reasons when engaged. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as compromised wiring can lead to signal disruptions. If these steps do not resolve the issue, seeking assistance from a qualified mechanic or dealership is recommended for a comprehensive diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2017 Mercedes-Benz SL63 AMG?

When the cruise control in your 2017 Mercedes-Benz SL63 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 speed sensor, which is crucial for the cruise control system to accurately gauge the vehicle's speed. If this sensor is malfunctioning, the system may fail to engage or maintain the desired speed. Another frequent issue arises from the brake light switch; if this switch is defective, it can send incorrect signals to the cruise control system, preventing it from operating correctly. Additionally, a malfunctioning throttle actuator can disrupt the communication between the cruise control and the engine, leading to performance issues. It's also essential to consider the cruise control module itself, as a defect here can completely disable the system, necessitating repair or replacement. Lastly, electrical problems such as wiring issues or blown fuses can significantly impact the cruise control's functionality. By systematically checking these components, you can identify the root cause of the problem and take the necessary steps to restore your cruise control system.

How urgent is it to repair the non-functional cruise control in a 2017 Mercedes-Benz SL63 AMG?

When it comes to the urgency of repairing the non-functional cruise control in a 2017 Mercedes-Benz SL63 AMG, it is crucial to recognize the potential risks and inconveniences associated with neglecting this issue. A malfunctioning cruise control system can compromise safety by leading to erratic speed changes, which may result in dangerous driving conditions. Additionally, the absence of cruise control can significantly detract from driving comfort, especially during long trips, as the driver must continuously manage speed, leading to increased fatigue. Furthermore, for those considering the future resale of their vehicle, a fully operational cruise control system can enhance its market value. Therefore, addressing the repair of the cruise control system should be prioritized to ensure a safe, comfortable driving experience while also protecting the vehicle's investment value.

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2017 Mercedes-Benz SL63 AMG Cruise Control Issues & Repairs