2018 BMW 430i XDrive Cruise Control Isn't Working

Fixing cruise control issues in your 2018 BMW 430i xDrive

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Reviewed by
Bo Fader
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 2018 BMW 430i xDrive 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 2018 BMW 430i xDrive 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 2018 BMW 430i xDrive?

To effectively diagnose the non-functioning cruise control in your 2018 BMW 430i xDrive, begin with the simplest checks to avoid unnecessary complications. Start by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, as malfunctioning buttons can hinder the system's functionality. If these initial checks do not resolve the issue, proceed to verify the speed sensor, which plays a crucial role in the cruise control system; a faulty sensor can disrupt its operation. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying problems. Additionally, inspect the brake and clutch switches, as these components are essential for the cruise control to engage properly. Finally, take a close look at the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as poor connections can lead to significant issues. By following this structured approach, you can systematically identify and address the root cause of your cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW 430i xDrive?

When dealing with cruise control issues in a 2018 BMW 430i xDrive, it's essential to understand the common problems that may arise. One frequent culprit is a faulty speed sensor, which can disrupt the system's ability to maintain the desired speed. Additionally, a malfunctioning brake light switch can lead to unexpected disengagement of the cruise control when the brake pedal is pressed, creating a frustrating driving experience. Another potential issue is with the throttle actuator, which may hinder communication between the cruise control system and the engine, resulting in operational failures. Electrical problems, such as blown fuses or wiring issues, can also prevent the cruise control from functioning correctly. Lastly, vacuum leaks within the cruise control system can significantly impact its performance, causing it to lose the ability to maintain speed. If you encounter any of these issues, it is advisable to consult a qualified mechanic for a thorough inspection and diagnosis to ensure your cruise control system is restored to proper working order.

How urgent is it to address the malfunctioning cruise control in my 2018 BMW 430i xDrive?

Addressing the malfunctioning cruise control in your 2018 BMW 430i xDrive is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunctioning system can compromise your ability to maintain a steady speed, increasing the likelihood of accidents on the road. Moreover, neglecting this issue can lead to more severe problems within your vehicle, potentially resulting in costly repairs down the line. By prioritizing the repair of your cruise control, you not only enhance your driving safety but also protect the overall health of your vehicle, ensuring it operates efficiently for years to come. Taking prompt action can save you from the inconvenience and expense of more extensive repairs, making it essential to address any symptoms of malfunction as soon as they arise.

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