2018 BMW 330i XDrive Cruise Control Isn't Working

Fixing cruise control issues in your 2018 BMW 330i xDrive

Find Repair Location
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 2018 BMW 330i 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 330i 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 steps should I take to diagnose the cruise control issue in my 2018 BMW 330i xDrive?

When diagnosing the cruise control issue in your 2018 BMW 330i xDrive, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by examining the cruise control fuse, as a blown fuse is a common culprit for system failures. Next, inspect the cruise control buttons on your steering wheel to ensure they are operational, since malfunctioning buttons can hinder functionality. Utilizing an OBD-II scanner to retrieve any error codes can provide valuable insights into potential problems, guiding your troubleshooting process. It's also important to check the speed sensors, as they are vital for the cruise control system's performance. Pay attention to the wiring connections associated with the cruise control; any loose or damaged connections can lead to issues. Lastly, test the cruise control module itself, as a defect here can cause ongoing problems. If these steps do not yield results, consulting a professional mechanic or a BMW dealership is recommended for a thorough diagnosis and repair. By systematically addressing these areas, you can effectively pinpoint and resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW 330i xDrive?

When troubleshooting the cruise control system in a 2018 BMW 330i xDrive, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty speed sensor, which is crucial for the system to accurately gauge the vehicle's speed; if this sensor malfunctions, the cruise control may fail to engage or maintain speed. Additionally, the brake light switch plays a vital role, as it is designed to disengage the cruise control when the brakes are applied; a malfunction here can disrupt the entire system. Another potential issue is with the throttle actuator, which is responsible for maintaining a consistent speed; if it encounters problems, the cruise control may not function correctly. Vacuum leaks can also be a significant factor, as they can interfere with the necessary vacuum pressure for the cruise control to operate effectively. Lastly, electrical problems, including blown fuses or wiring issues, can prevent the cruise control module from working properly. By systematically checking these components, DIY enthusiasts can effectively diagnose and potentially resolve the cruise control issues in their BMW.

How urgent is it to address the non-functioning cruise control in a 2018 BMW 330i xDrive?

Addressing a non-functioning cruise control in a 2018 BMW 330i xDrive is crucial for both safety and vehicle performance. When cruise control fails, it can signal underlying electronic system issues or sensor malfunctions that may compromise the vehicle's overall functionality. Ignoring this problem could lead to more severe complications, including costly repairs that could arise from further damage over time. Additionally, a malfunctioning cruise control can significantly detract from the driving experience, especially during long trips where maintaining a steady speed is essential for comfort and fuel efficiency. For DIY enthusiasts, understanding the urgency of this issue is vital; timely intervention not only enhances safety but also prevents the escalation of minor problems into major repairs. Therefore, if you notice your cruise control is not functioning, it is advisable to investigate the issue promptly to ensure your BMW remains safe and reliable on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.