2022 Mercedes-Benz EQB 350 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2022 Mercedes-Benz EQB 350

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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 2022 Mercedes-Benz EQB 350 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 2022 Mercedes-Benz EQB 350 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 non-functioning cruise control in my 2022 Mercedes-Benz EQB 350?

To effectively diagnose the non-functioning cruise control in your 2022 Mercedes-Benz EQB 350, begin with the simplest solutions before progressing to more intricate assessments. Start by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on your steering wheel to ensure they are operational, as malfunctioning buttons can hinder the system's functionality. Following this, verify the speed sensors, since faulty sensors can disrupt the cruise control's ability to maintain speed. Additionally, examine the brake pedal switch, which is crucial for the system's operation, as it disengages cruise control when the brake is applied. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific problems within the cruise control system. Should you still be unable to pinpoint the issue, it may be wise to consult a professional mechanic or an authorized Mercedes-Benz service center for a comprehensive evaluation and repair. By systematically addressing these areas, you can efficiently diagnose and potentially resolve the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2022 Mercedes-Benz EQB 350?

When troubleshooting cruise control issues in a 2022 Mercedes-Benz EQB 350, it's essential to consider several common problems that could be at play. A faulty speed sensor is often a primary culprit, as it can hinder the system's ability to maintain the desired speed. Additionally, a malfunctioning brake light switch may cause the cruise control to disengage unexpectedly, particularly when the brake pedal is pressed. Another potential issue lies with the throttle actuator, which can disrupt communication between the cruise control system and the engine, leading to operational failures. Electrical problems, such as blown fuses or wiring issues, can also impede the cruise control's functionality, as can software glitches within the vehicle's onboard computer system. By systematically examining these areas, you can effectively diagnose and potentially resolve the cruise control malfunction in your EQB 350.

How urgent is it to address the malfunctioning cruise control in my 2022 Mercedes-Benz EQB 350?

When it comes to the malfunctioning cruise control in your 2022 Mercedes-Benz EQB 350, urgency is key. A malfunction can lead to unexpected acceleration or deceleration, creating a significant safety hazard on the road. This feature is designed to enhance your driving experience, and when it fails, it not only compromises comfort but also increases the risk of accidents. Additionally, neglecting this issue can result in higher fuel consumption and may cause undue wear on other vehicle components, leading to more costly repairs down the line. Regular maintenance and timely attention to such malfunctions are essential for preserving the overall performance and longevity of your vehicle. Therefore, addressing the cruise control issue promptly is crucial for your safety and the health of your EQB 350.

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