2000 Mercedes-Benz CLK320 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2000 Mercedes-Benz CLK320 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 2000 Mercedes-Benz CLK320 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 2000 Mercedes-Benz CLK320 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 non-functioning cruise control in a 2000 Mercedes-Benz CLK320?

To effectively diagnose the non-functioning cruise control in your 2000 Mercedes-Benz CLK320, start with a systematic approach that prioritizes simpler checks before delving into more complex issues. Begin by examining common problems that could disrupt the cruise control system, such as ensuring that the brake pedal switch is functioning correctly, as a malfunction here is a frequent culprit. Next, inspect the cruise control connector pin for any signs of a dry solder joint, which can impede electrical connections. Additionally, verify that your wheel and tire combinations are appropriate, as incorrect sizes can adversely affect the cruise control's performance. By following this diagnostic approach, you can identify and resolve the issue efficiently, ensuring your cruise control operates smoothly once again.

What are the common problems that could cause the cruise control to stop working in a 2000 Mercedes-Benz CLK320?

When your cruise control stops functioning in a 2000 Mercedes-Benz CLK320, there are several common issues you can investigate to potentially restore its operation. Start by checking the fuse associated with the cruise control system, as a blown fuse is a frequent culprit. Next, inspect the brake lights; if they are not working properly, it may indicate a faulty brake switch, which can interrupt the cruise control functionality. Additionally, ensure that your tires are the correct profile for your vehicle, as incorrect wheel or tire combinations can disrupt the cruise control system's performance. By systematically examining these areas, you can identify and address the underlying problems, allowing you to enjoy the convenience of cruise control once again.

How urgent is it to repair the non-functioning cruise control in a 2000 Mercedes-Benz CLK320?

While the malfunctioning cruise control in your 2000 Mercedes-Benz CLK320 may not pose an immediate safety risk, addressing the issue promptly is still important for maintaining the vehicle's overall functionality and enhancing your driving experience. Ignoring the problem could lead to further complications, such as increased wear on other components or the development of more serious electrical issues. Additionally, if the cruise control system is linked to other systems in the vehicle, such as the brake system, a failure to repair it could inadvertently affect those systems as well. Therefore, while it may not be urgent, it is wise to have the cruise control inspected and repaired to avoid potential inconveniences during long drives and to ensure that all vehicle systems are operating as intended.

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