BMW 528xi Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your BMW 528xi and How to Fix Them

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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 BMW 528xi 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 BMW 528xi 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.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

Troubleshooting Cruise Control Issues in a BMW 528xi

When troubleshooting cruise control issues in your BMW 528xi, it's essential to adopt a systematic diagnostic approach. Begin by checking for blown fuses, as this is a straightforward fix that can often resolve the problem. Next, inspect the brake pedal and throttle body, since any malfunction in these components can directly affect cruise control functionality. If these initial checks do not yield results, using a diagnostic scanner can help identify specific error codes related to the cruise control system, allowing for a more targeted approach to repairs. Additionally, verifying the operation of the speed sensor is crucial, as a faulty sensor can disrupt the cruise control's performance. If these DIY methods do not rectify the issue, it may be time to consult a professional mechanic who can provide a comprehensive inspection and recommend necessary repairs. By following this structured approach, you can effectively diagnose and potentially resolve cruise control issues in your BMW 528xi.

What Are the Common Problems with Cruise Control in a BMW 528xi?

When dealing with cruise control issues in a BMW 528xi, it's essential to recognize the common problems that may arise. One of the first signs of malfunction is the appearance of a warning light on the dashboard, which indicates that the system has detected an issue. If the vehicle's computer determines that cruise control is unsafe, it may display a specific malfunction error, advising against its use. Additionally, owners should be aware of potential mechatronic unit problems, particularly in the E60 generation, where transmission issues can surface as the vehicle ages, especially between 50,000 to 100,000 miles. Specific error codes, such as D01736, may also point to underlying issues like a faulty clock spring, which can be challenging to replace. While these problems are not overly common, they can lead to minor inconveniences that may require dealership visits for repairs. By understanding these symptoms and error codes, DIY enthusiasts can better diagnose and address cruise control issues, ensuring their BMW 528xi remains safe and functional on the road.

Why is the Cruise Control Not Working in a BMW 528xi?

When your BMW 528xi's cruise control is not functioning, it is crucial to address the issue without delay. Ignoring the malfunction can not only compromise your driving experience but also pose significant safety risks. A malfunctioning cruise control system may indicate underlying problems such as failed sensors, electrical issues, or throttle actuation failures, which could escalate if left unchecked. For instance, dirty or faulty speed sensors can disrupt the system's ability to maintain speed, while electrical problems may signal broader issues within the vehicle's electrical system. Additionally, a malfunctioning cruise control can lead to erratic vehicle behavior, increasing the risk of accidents. Therefore, it is advisable to conduct a thorough inspection of the cruise control system, focusing on sensor functionality, electrical connections, and throttle operation, to ensure safe and reliable vehicle performance. Taking prompt action not only enhances your driving safety but also prevents potential damage to your BMW's systems.

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