2018 BMW 440i Gran Coupe Cruise Control Isn't Working

Fixing cruise control issues in your 2018 BMW 440i Gran Coupe

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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 2018 BMW 440i Gran Coupe 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 440i Gran Coupe 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 440i Gran Coupe?

When troubleshooting the non-functioning cruise control in a 2018 BMW 440i Gran Coupe, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse; a blown fuse can easily disrupt the system's functionality. Next, ensure that the cruise control settings are correctly configured in the vehicle's settings menu, as incorrect settings can prevent activation. Inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder operation. Additionally, verify the vehicle speed sensor, which is essential for the cruise control to function properly. 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 system. Finally, examine the brake and clutch switches, as faulty switches can interfere with cruise control engagement. By following this structured approach, you can effectively diagnose and potentially resolve the cruise control issue in your BMW.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW 440i Gran Coupe?

When troubleshooting the cruise control system in a 2018 BMW 440i Gran Coupe, it's essential to understand the common problems that may lead to its failure. One of the primary issues could be 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 not engage or maintain the desired speed. Additionally, the brake light switch plays a vital role in the operation of cruise control; if this switch is defective, it may not disengage the system when the brake pedal is pressed, causing further complications. Another potential culprit is the throttle actuator, which regulates the engine's throttle opening. If it fails, the cruise control may struggle to maintain a constant speed. Furthermore, a defective cruise control module can disrupt communication between the system and other vehicle components, leading to a complete loss of functionality. Lastly, electrical issues such as wiring problems or blown fuses can also impede the cruise control system's operation. By identifying and addressing these common issues, you can effectively diagnose and potentially repair the cruise control system in your BMW.

How urgent is it to address the non-functioning cruise control in a 2018 BMW 440i Gran Coupe?

Addressing the non-functioning cruise control in a 2018 BMW 440i Gran Coupe is crucial for both safety and vehicle performance. A malfunctioning cruise control system not only diminishes the convenience of long drives but may also signal deeper electronic or sensor issues that could affect other critical systems in the vehicle. Ignoring this problem can lead to increased driver fatigue during extended trips, as the driver must constantly monitor and adjust speed manually. Moreover, a faulty cruise control could indicate more serious underlying problems that, if left unaddressed, might escalate into costly repairs or even compromise the vehicle's overall functionality. Therefore, it is essential for DIY enthusiasts to prioritize diagnosing and fixing the cruise control issue promptly, ensuring a safer and more enjoyable driving experience.

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2018 BMW 440i Gran Coupe Cruise Control Issues & Repairs