2015 Mercedes-Benz C63 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Mercedes-Benz C63 AMG and How to Fix Them

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Reviewed by
Bo Fader
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 2015 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 2015 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 2015 Mercedes-Benz C63 AMG?

To effectively diagnose the non-functioning cruise control in your 2015 Mercedes-Benz C63 AMG, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box; a blown fuse is an easy fix that can often resolve the issue. Next, examine the cruise control buttons on the steering wheel for any signs of sticking or damage, as these can hinder functionality. Following this, verify the speed sensor's operation, since it plays a crucial role in relaying speed information to the cruise control system. Utilizing an OBD-II scanner to check for error codes can provide insights into any underlying problems. Additionally, inspect the brake and clutch switches, as these components are designed to disengage the cruise control when activated. Finally, take a close look at the wiring and connections associated with the cruise control system for any damage or loose connections. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2015 Mercedes-Benz C63 AMG?

When the cruise control in your 2015 Mercedes-Benz C63 AMG ceases to function, there are several common problems you can troubleshoot on your own. Start by checking the brake light switch, as a faulty switch can prevent the cruise control from engaging; if the brake lights are stuck on, this is a clear indicator of a malfunction. Next, inspect the speed sensor, which is crucial for accurate speed readings; if it’s not working properly, the cruise control may disengage unexpectedly. Additionally, consider the throttle actuator, as any malfunction here can disrupt the system's ability to maintain speed. Electrical issues, such as blown fuses or damaged wiring, can also interfere with cruise control functionality, so a thorough examination of the vehicle’s electrical system is essential. Lastly, if all else fails, the cruise control module itself may be at fault, necessitating diagnostic testing to confirm its condition. By systematically checking these components, you can identify and potentially resolve the issue with your cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2015 Mercedes-Benz C63 AMG?

Addressing a malfunctioning cruise control system in your 2015 Mercedes-Benz C63 AMG is crucial for both safety and vehicle performance. When cruise control fails, it can lead to unpredictable acceleration or deceleration, creating a hazardous driving environment that could endanger you and others on the road. Additionally, a malfunctioning system detracts from the overall driving experience, making long trips less enjoyable and more stressful. Ignoring these symptoms not only compromises your safety but can also lead to more extensive damage to the vehicle's electronic systems, resulting in costly repairs down the line. Therefore, it is essential to diagnose and resolve any cruise control issues promptly to ensure your vehicle remains safe, reliable, and enjoyable to drive.

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2015 Mercedes-Benz C63 AMG Cruise Control System Guide