2022 Mercedes-Benz S500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2022 Mercedes-Benz S500 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 2022 Mercedes-Benz S500 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 2022 Mercedes-Benz S500 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 are the initial diagnostic steps to take when the cruise control isn't working on a 2022 Mercedes-Benz S500?

When faced with a malfunctioning cruise control system in your 2022 Mercedes-Benz S500, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel; faulty buttons can prevent the system from engaging. It's also crucial to verify the operation of the speed sensors, as any malfunction here can directly impact cruise control performance. Additionally, ensure that the brake pedal switch is functioning correctly, since the system is designed to disengage when the brake is applied. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific issues affecting the cruise control system. Lastly, inspect the wiring and connections for any signs of damage or loose connections, as these can lead to malfunctions. By following this structured approach, you can effectively identify and address common issues with your cruise control system before considering professional assistance.

What are the common problems that could cause the cruise control to stop working in a 2022 Mercedes-Benz S500?

When the cruise control in a 2022 Mercedes-Benz S500 ceases to function, several common problems may be at play. One of the primary culprits 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. Additionally, issues with the brake light switch can disrupt the cruise control's operation, as the system relies on signals from this switch to disengage when the brakes are applied. Another potential issue is a malfunctioning throttle actuator, which can hinder communication between the cruise control system and the engine, preventing it from maintaining speed effectively. Furthermore, a defective cruise control module can lead to a complete failure of the system, necessitating repair or replacement. Lastly, electrical problems such as wiring issues or blown fuses can also impede the cruise control's functionality. For those looking to diagnose these issues, a thorough inspection of these components can provide valuable insights into restoring the cruise control system to working order.

How urgent is it to address the malfunctioning cruise control in a 2022 Mercedes-Benz S500?

Addressing a malfunctioning cruise control in a 2022 Mercedes-Benz S500 is of utmost importance due to the potential safety risks and the likelihood of incurring additional repair costs if the issue is neglected. A malfunctioning cruise control system can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which poses a significant danger, especially on highways where maintaining a steady speed is crucial. Furthermore, ignoring these symptoms can exacerbate the problem, leading to more extensive damage to the vehicle's systems and resulting in costly repairs down the line. Therefore, it is essential for DIY enthusiasts to prioritize diagnosing and fixing cruise control issues promptly to ensure not only their safety but also the longevity of their vehicle.

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2022 Mercedes-Benz S500 Cruise Control Issues & Repairs