2011 Mercedes-Benz C350 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2011 Mercedes-Benz C350

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Reviewed by
Andrew Hajjar
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 2011 Mercedes-Benz C350 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.

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2011 Mercedes-Benz C350 electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
27 Certified Locations
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Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
Call
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Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
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All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
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Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
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See All 27 Locations

How much does it cost to fix a 2011 Mercedes-Benz C350 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 2011 Mercedes-Benz C350?

To effectively diagnose a cruise control issue in a 2011 Mercedes-Benz C350, it's essential to adopt a systematic approach that begins with the simplest potential problems before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can prevent the system from engaging. Utilizing an OBD-II scanner to scan for error codes is a crucial step, as it can reveal specific issues within the cruise control system. Following this, verify the functionality of the speed sensors, which are vital for the cruise control to operate correctly. Additionally, examine the brake and clutch switches, as malfunctioning switches can inhibit the cruise control from engaging. Finally, conduct a thorough inspection of the wiring and connections associated with the cruise control system, looking for any signs of damage or corrosion that could affect performance. By following this structured diagnostic approach, you can efficiently identify and address the underlying issues affecting the cruise control system in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2011 Mercedes-Benz C350?

When the cruise control in your 2011 Mercedes-Benz C350 ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is a faulty brake light switch, which is crucial for the cruise control system as it disengages the system when the brake pedal is pressed. If this switch is malfunctioning, it may prevent the cruise control from engaging at all. Another potential issue could be related to the speed sensor; if this component is not providing accurate speed readings, the cruise control will not operate correctly. Additionally, vacuum leaks within the cruise control system can disrupt its functionality, leading to unexpected disengagements. A defective cruise control module may also be at fault, as it is responsible for controlling the system's operations. Lastly, electrical problems, such as blown fuses or damaged wiring, can significantly impact the cruise control's performance. By systematically checking these components, you can identify and resolve the issues affecting your cruise control system, allowing you to enjoy a smoother driving experience once again.

How urgent is it to address the non-functioning cruise control in a 2011 Mercedes-Benz C350?

Addressing the non-functioning cruise control in your 2011 Mercedes-Benz C350 is more urgent than it may initially seem. While it might not pose an immediate safety risk, the inconvenience of having to manually maintain speed during long drives can lead to driver fatigue, especially on highways. Additionally, the malfunction could stem from various issues such as a defective component, a blown fuse, or faulty wiring, all of which can adversely affect your vehicle's overall performance. Ignoring this problem not only compromises your driving comfort but can also lead to decreased fuel efficiency, as cruise control is designed to optimize speed and fuel consumption. In some cases, the repair might be as simple as re-heating solder connections in the Cruise Control Controller, making it a manageable DIY task. Therefore, it is advisable to address the cruise control issue promptly to ensure a smoother, more efficient driving experience.

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