2006 Mercedes-Benz C280 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Mercedes-Benz C280 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 C280 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 2006 Mercedes-Benz C280 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 C280?

When diagnosing a cruise control issue in a 2006 Mercedes-Benz C280, it's crucial to follow a structured diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common culprit that can easily disrupt the system's operation. Next, verify the functionality of the cruise control switch on the steering wheel; a faulty switch can prevent the system from engaging properly. After that, examine the vehicle's speed sensors, since any malfunction here can adversely affect cruise control performance. Utilizing a diagnostic scanner to check for error codes can also be beneficial, as it may reveal specific issues that need addressing. Additionally, inspect the wiring and connections related to the cruise control system for any signs of damage or corrosion, as these can lead to operational failures. Finally, test the cruise control module to ensure it is working correctly, as a malfunctioning module can be the source of the problem. By systematically following these steps, you can effectively diagnose and resolve cruise control issues in your Mercedes-Benz C280.

What are the common problems that could cause the cruise control to stop working in a 2006 Mercedes-Benz C280?

When troubleshooting cruise control issues in a 2006 Mercedes-Benz C280, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty brake light switch, which is crucial for disengaging the cruise control when the brakes are applied; if this switch malfunctions, it can prevent the system from engaging properly. Additionally, a malfunctioning speed sensor can disrupt the cruise control's ability to maintain a constant speed, leading to erratic performance. Vacuum leaks in the engine are another potential issue, as they can interfere with the cruise control system's operation. Furthermore, a defective cruise control module may be responsible for the system's failure, as this component is integral to its functionality. Electrical problems, such as blown fuses or wiring issues, can also impact the cruise control's operation, while throttle-related issues, including a sticking throttle or problems with the throttle position sensor, can hinder the system's ability to maintain speed. By systematically checking these components, DIYers can effectively diagnose and address the underlying issues affecting the cruise control system in their vehicle.

How urgent is it to address the non-functioning cruise control in a 2006 Mercedes-Benz C280?

When it comes to a non-functioning cruise control in a 2006 Mercedes-Benz C280, the urgency of addressing the problem cannot be overstated. While it may seem like a minor inconvenience, a malfunctioning cruise control system can lead to significant safety risks, especially during long drives where maintaining a constant speed is crucial. This feature not only enhances driver comfort by reducing fatigue but also contributes to better fuel efficiency. Moreover, the underlying issues causing the cruise control failure could be indicative of more serious problems within the vehicle's electronic systems or sensors, which may affect other critical functions. Therefore, neglecting this issue could result in further complications and potentially costly repairs down the line. For those considering a DIY approach, it is essential to diagnose the problem accurately and understand that while some repairs may be manageable, consulting a qualified mechanic is advisable to ensure the vehicle's overall safety and performance. Addressing the cruise control issue promptly will not only enhance your driving experience but also safeguard your vehicle's integrity on the road.

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2006 Mercedes-Benz C280 Cruise Control Issues & Repairs