2018 BMW 328d XDrive Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 BMW 328d xDrive and How to Fix Them

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Reviewed by
Aisha
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 328d 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 328d 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2018 BMW 328d xDrive?

When troubleshooting the non-functioning cruise control in your 2018 BMW 328d xDrive, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse in the fuse box; a blown fuse can easily disrupt the system's functionality. Next, ensure that the cruise control settings are correctly configured according to your vehicle's manual, as incorrect settings can prevent activation. If these initial checks do not resolve the issue, use a diagnostic scanner to look for any error codes that may indicate specific problems within the cruise control system. Additionally, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder operation. Finally, verify that the brake pedal switch is functioning properly, since cruise control is designed to disengage when the brake is applied. By following this structured approach, you can effectively identify and address the common issues that may be affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW 328d xDrive?

When the cruise control in your 2018 BMW 328d xDrive ceases to function, it can be frustrating, but understanding the common issues can help you diagnose the problem effectively. One of the primary culprits is a faulty speed sensor, which is crucial for the cruise control system to accurately gauge your vehicle's speed. If this sensor is malfunctioning, the system may fail to engage or maintain speed. Another frequent issue is related to the brake light switch; if this switch is defective, it can cause the cruise control to disengage unexpectedly whenever the brake pedal is pressed. Additionally, a malfunctioning throttle actuator can disrupt communication between the cruise control 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 vacuum leaks within the system that prevent it from maintaining a steady speed. By identifying these potential issues, you can take the first steps toward troubleshooting and possibly repairing your cruise control system, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in my 2018 BMW 328d xDrive?

When your 2018 BMW 328d xDrive's cruise control system fails, it is crucial to recognize the urgency of the situation. While it may not seem like an immediate emergency, a malfunctioning cruise control can signal deeper electronic issues that could compromise your vehicle's overall performance and safety. Ignoring this problem may lead to increased driver fatigue during long trips, as you lose the convenience of maintaining a constant speed, which can also negatively impact fuel efficiency. Moreover, a faulty cruise control system could be indicative of more serious underlying problems that, if left unaddressed, might escalate into costly repairs or safety hazards. Therefore, it is advisable to prioritize a thorough inspection and repair by a qualified mechanic or authorized BMW service center. By taking prompt action, you not only enhance your driving experience but also safeguard your vehicle's integrity and your safety on the road.

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2018 BMW 328d xDrive Cruise Control Troubleshooting Guide