2018 Mercedes-Benz GLE43 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2018 Mercedes-Benz GLE43 AMG

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Reviewed by
Devin Cabugcal
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 2018 Mercedes-Benz GLE43 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 2018 Mercedes-Benz GLE43 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 2018 Mercedes-Benz GLE43 AMG?

To effectively diagnose the non-functioning cruise control in your 2018 Mercedes-Benz GLE43 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 to ensure they are operational, since a malfunctioning button can hinder engagement. Following this, verify the speed sensors, as they play a crucial role in the cruise control system's functionality; any faults here could disrupt performance. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into underlying problems, guiding you toward the specific issue. Additionally, assess the brake and clutch switches, as these components must function correctly for the cruise control to activate. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or loose connections, as these can also lead to malfunctions. 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 2018 Mercedes-Benz GLE43 AMG?

When troubleshooting the cruise control system in a 2018 Mercedes-Benz GLE43 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 the cruise control from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can cause the cruise control to disengage unexpectedly, particularly when the brake pedal is pressed, creating an unsafe driving experience. Another potential culprit is a malfunctioning throttle actuator, which can hinder communication between the cruise control system and the engine, resulting in operational failures. Furthermore, a defective cruise control module may prevent the system from receiving the necessary signals to function correctly. Lastly, various electrical problems, such as wiring issues or blown fuses, can also interfere with the cruise control's performance. 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 2018 Mercedes-Benz GLE43 AMG?

Addressing a malfunctioning cruise control in a 2018 Mercedes-Benz GLE43 AMG is crucial for both safety and vehicle performance. When cruise control fails, it can hinder your ability to maintain a steady speed, increasing the risk of accidents on the road. Moreover, such issues may signal deeper electronic or sensor problems that could affect other critical vehicle functions. Ignoring these symptoms not only compromises safety but can also lead to higher fuel consumption and potential long-term damage to the vehicle. By promptly diagnosing and repairing the cruise control system, you can prevent further complications and avoid costly repairs in the future. For DIY enthusiasts, understanding the urgency of this issue is essential; taking action sooner rather than later can ensure your vehicle remains safe and efficient on the road.

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