2017 BMW 640i XDrive Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 BMW 640i xDrive and How to Fix Them

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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 2017 BMW 640i 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 2017 BMW 640i 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 2017 BMW 640i xDrive?

To effectively diagnose the non-functioning cruise control in your 2017 BMW 640i xDrive, begin with the simplest solutions before progressing to more complex diagnostics. 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 the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. If these initial checks do not resolve the problem, use a diagnostic scanner to scan for error codes from the vehicle's onboard computer, which can provide insights into specific issues affecting the cruise control system. Additionally, examine the speed sensors on the wheels, as dirty or faulty sensors can disrupt the cruise control functionality. It is also crucial to check the brake and clutch switches, as any malfunction here can disable the cruise control. Lastly, inspect the wiring and connections related to the cruise control system for any signs of damage or looseness. If these steps do not lead to a solution, it may be time to consult a professional mechanic or a BMW dealership for further assistance. By following this structured approach, you can systematically identify and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2017 BMW 640i xDrive?

When troubleshooting cruise control issues in a 2017 BMW 640i xDrive, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, a malfunctioning brake light switch can disrupt the cruise control operation, as this switch is crucial for disengaging the system when the brakes are applied. Another potential issue is a throttle actuator malfunction, which can impede the cruise control's ability to adjust the throttle position effectively. Electrical problems, such as blown fuses or wiring issues, can also play a significant role in cruise control failure, as can software glitches within the vehicle's control module. By identifying and addressing these common problems, DIY enthusiasts can effectively diagnose and repair the cruise control system, restoring its functionality and enhancing the driving experience.

How urgent is the repair for the non-functioning cruise control in a 2017 BMW 640i xDrive?

When assessing the urgency of repairing a non-functioning cruise control in a 2017 BMW 640i xDrive, it is crucial to consider the potential consequences of neglecting this issue. A malfunctioning cruise control system can compromise safety by causing erratic speed changes, which may lead to dangerous driving situations, especially on highways where maintaining a steady speed is essential. Additionally, the comfort and convenience that cruise control provides during long drives or daily commutes cannot be overlooked; without it, drivers may experience increased fatigue and discomfort. Furthermore, addressing this repair promptly can also protect the vehicle's resale value, as prospective buyers often shy away from cars with known mechanical issues. Therefore, prioritizing the repair of your cruise control not only enhances your driving experience but also ensures safety and preserves the integrity of your vehicle's value.

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