2016 Mercedes-Benz E350 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Mercedes-Benz E350 and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2016 Mercedes-Benz E350 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 2016 Mercedes-Benz E350 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 troubleshoot the non-functioning cruise control in a 2016 Mercedes-Benz E350?

When faced with a non-functioning cruise control in your 2016 Mercedes-Benz E350, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. Following this, verify the speed sensors, which play a crucial role in maintaining speed; any faults here can disrupt the cruise control functionality. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific issues affecting the system. Additionally, ensure that the brake and clutch switches are functioning correctly, as these components are designed to disengage cruise control when the pedals are pressed. Finally, examine the wiring and connections associated with the cruise control system for any signs of damage or corrosion. By methodically working through these steps, you can effectively troubleshoot the issue and potentially restore your cruise control system to working order. If problems persist, seeking assistance from a professional mechanic may be necessary.

What are the common problems that could cause the cruise control to stop working in a 2016 Mercedes-Benz E350?

When troubleshooting the cruise control system in a 2016 Mercedes-Benz E350, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits is a faulty brake light switch, which can prevent the system from engaging if it fails to detect when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to cruise control failure. Another potential problem is a malfunctioning throttle actuator, which directly affects the system's capacity to regulate speed effectively. Electrical issues, such as blown fuses or wiring problems, can also impede the cruise control functionality. Lastly, software glitches within the vehicle's computer system may cause unexpected behavior in the cruise control feature. By identifying and addressing these common issues, you can effectively diagnose and potentially repair the cruise control system in your E350.

How urgent is it to address the malfunctioning cruise control in a 2016 Mercedes-Benz E350?

Addressing a malfunctioning cruise control in a 2016 Mercedes-Benz E350 is of utmost importance due to the potential safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can create hazardous driving conditions for both the driver and others on the road. Additionally, a malfunctioning cruise control can detract from the overall driving experience, making long trips less comfortable and convenient. Ignoring these symptoms not only compromises safety but can also lead to more significant issues within the vehicle's systems, resulting in costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of cruise control problems promptly to ensure safe and enjoyable driving.

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