2019 Mercedes-Benz C63 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2019 Mercedes-Benz C63 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 2019 Mercedes-Benz C63 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 2019 Mercedes-Benz C63 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 2019 Mercedes-Benz C63 AMG?

To effectively diagnose the non-functioning cruise control in your 2019 Mercedes-Benz C63 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily rectifiable issue. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent the system from engaging. Following this, verify the functionality of the speed sensors on the wheels, since faulty sensors can disrupt the cruise control operation. Utilizing a diagnostic scanner to check for error codes related to the cruise control system can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning correctly, as malfunctioning switches can disable the cruise control feature. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion, as these can also lead to operational failures. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 Mercedes-Benz C63 AMG?

When the cruise control in your 2019 Mercedes-Benz C63 AMG ceases to function, it can be frustrating, but understanding the common problems can guide you in diagnosing the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge the vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another common issue is related to the brake light switch; if this switch is defective, it may not properly signal the cruise control system to disengage when the brake pedal is pressed, leading to operational failures. Additionally, a malfunctioning throttle actuator can disrupt the system's ability to maintain a constant speed, as it directly controls the engine's throttle. Electrical problems, such as blown fuses or wiring issues, can also impede the cruise control's functionality, as can vacuum leaks within the system. By identifying these potential problems, you can take the necessary steps to troubleshoot and restore your cruise control system effectively.

How urgent is it to address the non-functioning cruise control in a 2019 Mercedes-Benz C63 AMG?

Addressing the non-functioning cruise control in a 2019 Mercedes-Benz C63 AMG is crucial for both safety and performance. When this feature fails, it may not only lead to driver inconvenience during long trips but could also signal deeper issues within the vehicle's systems. Given that modern vehicles integrate cruise control with advanced safety technologies, neglecting this malfunction could compromise overall driving safety. Moreover, a malfunctioning cruise control system can lead to increased driver fatigue, as maintaining speed manually becomes more taxing, especially on highways. Therefore, it is essential to diagnose and resolve the issue promptly, as doing so not only restores the convenience of cruise control but also ensures that any underlying problems are addressed before they escalate into more significant, costly repairs. For DIY enthusiasts, understanding the urgency of this repair can guide them in prioritizing their maintenance tasks effectively, ensuring both their safety and the longevity of their vehicle.

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2019 Mercedes-Benz C63 AMG Cruise Control Issues & Fix Costs