2006 Mercedes-Benz SL55 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Mercedes-Benz SL55 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 2006 Mercedes-Benz SL55 AMG cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 2006 Mercedes-Benz SL55 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 are the steps to diagnose the cruise control issue in a 2006 Mercedes-Benz SL55 AMG?

To effectively diagnose the cruise control issue in your 2006 Mercedes-Benz SL55 AMG, begin by checking the most accessible components. Start with the control module, sensor, throttle, and switch, as these are common culprits for cruise control malfunctions. Next, inspect the Distronic sensor to ensure it is functioning properly, as any faults here can directly impact cruise control performance. Since the SL55 AMG utilizes an electronic and mechanical system rather than a vacuum-based one, it’s crucial to troubleshoot these components for any intermittent issues that may arise while driving. Additionally, verify that the brake light switch and lights are operational, as a malfunction in these areas can cause the cruise control to disengage unexpectedly, mistakenly signaling that the brakes are applied. By systematically addressing these components, you can pinpoint the source of the cruise control problem and take the necessary steps to resolve it.

How urgent is it to address the non-functioning cruise control in a 2006 Mercedes-Benz SL55 AMG?

Addressing the non-functioning cruise control in a 2006 Mercedes-Benz SL55 AMG is not just a matter of convenience; it is a critical safety concern that should be prioritized. When cruise control fails, it can lead to erratic vehicle behavior, affecting acceleration and speedometer accuracy, which can compromise your driving experience and safety on the road. The longer you wait to resolve this issue, the greater the risk of encountering more severe problems that could lead to costly repairs or even dangerous driving situations. For instance, during long trips or highway driving, the absence of cruise control can lead to fatigue and decreased focus, increasing the likelihood of accidents. Therefore, it is essential to address any symptoms of malfunctioning cruise control immediately to ensure your vehicle operates optimally and safely, allowing you to enjoy your driving experience without unnecessary stress or risk.

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