2023 Mercedes-Benz EQB 250 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2023 Mercedes-Benz EQB 250

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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 2023 Mercedes-Benz EQB 250+ 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 2023 Mercedes-Benz EQB 250+ 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 steps should I take to diagnose the cruise control issue in my 2023 Mercedes-Benz EQB 250?

To effectively diagnose the cruise control issue in your 2023 Mercedes-Benz EQB 250, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can often be the simplest explanation for malfunction. Next, examine the cruise control buttons on your steering wheel to ensure they are responsive and functioning correctly, as faulty buttons can disrupt the system. If these initial checks do not reveal the problem, utilize an OBD-II scanner to identify any error codes that may indicate specific issues within the cruise control system. Following this, assess the speed sensors, which are vital for the cruise control's operation, ensuring they are working properly. Additionally, inspect the wiring and connections associated with the cruise control system for any signs of damage or loose connections that could be causing the malfunction. Finally, if all else fails, test the cruise control module itself, as a malfunctioning module can lead to persistent issues. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control problem in your vehicle.

What are the common problems that could cause the cruise control to malfunction in a 2023 Mercedes-Benz EQB 250?

When dealing with cruise control malfunctions in a 2023 Mercedes-Benz EQB 250, it's essential to understand the various common problems that may arise. One significant issue could be sensor malfunctions, where the sensors responsible for detecting speed and distance fail to operate correctly, leading to erratic cruise control behavior. Additionally, electrical issues, such as faulty wiring or poor connections, can disrupt the system's functionality, making it crucial to inspect these components for any signs of wear or damage. Software glitches are another potential culprit; outdated or buggy software can cause the cruise control to behave unpredictably, so ensuring that the vehicle's software is up to date is vital. Mechanical problems, including a malfunctioning actuator or vacuum leaks, can also hinder the system's performance, necessitating a thorough examination of the mechanical components. Lastly, a faulty brake light switch can prevent the cruise control from engaging or cause it to disengage unexpectedly, which is a common yet often overlooked issue. By being aware of these potential problems, DIY enthusiasts can take proactive steps to troubleshoot and maintain the cruise control system effectively, ensuring a safe and enjoyable driving experience.

How urgent is it to address the malfunctioning cruise control in my 2023 Mercedes-Benz EQB 250?

When it comes to your 2023 Mercedes-Benz EQB 250, the urgency of addressing a malfunctioning cruise control system cannot be overstated. A malfunction in this system can lead to unexpected acceleration or deceleration, creating significant safety hazards on the road. This unpredictability not only endangers you and your passengers but also poses risks to other drivers. Additionally, a faulty cruise control can negatively affect your vehicle's fuel efficiency and overall driving experience, leading to a less enjoyable ride. Ignoring these symptoms may result in further wear and tear on critical components, potentially leading to more extensive and costly repairs down the line. By promptly diagnosing and repairing the issue, you can prevent additional damage and ensure a smoother, safer driving experience. Therefore, it is crucial to take action as soon as you notice any irregularities with your cruise control system.

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