BMW 328xi Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your BMW 328xi 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a BMW 328xi 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 328xi 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.

Troubleshooting Cruise Control Issues in a BMW 328xi

When troubleshooting cruise control issues in your BMW 328xi, it's essential to adopt a systematic diagnostic approach. Begin by checking the basics, such as ensuring that the cruise control switch is functioning correctly and that there are no blown fuses in the fuse box. A simple fuse replacement can often resolve the issue without further intervention. If the cruise control still does not engage, inspect the brake pedal switch, as a malfunction here can prevent the system from activating. Next, consider the throttle actuator and any related sensors, as these components play a crucial role in cruise control functionality. If these initial checks do not yield results, it may be time to consult online forums or community resources where fellow BMW owners share their experiences and solutions. Should the problem persist, seeking professional assistance from a BMW dealership is advisable, as they have the specialized tools and expertise to diagnose more complex issues effectively. By following this structured approach, you can efficiently identify and potentially resolve cruise control problems in your BMW 328xi.

What Are the Common Problems Causing Cruise Control Issues in a BMW 328xi?

When diagnosing cruise control problems in a BMW 328xi, it's essential to understand the common issues that may arise. One of the primary culprits is a failed control module, which can disrupt the entire cruise control system. Additionally, sensor or switch malfunctions can prevent the cruise control from engaging or maintaining speed. Throttle actuation problems are another significant factor; if the throttle isn't responding correctly, the cruise control will struggle to function as intended. A blown fuse related to the cruise control system can also render it non-operational, making it a straightforward fix for DIYers. While a malfunctioning cruise control system may not pose an immediate threat if left off, using it in a compromised state can be dangerous. Therefore, it's crucial to address these issues promptly. For those who prefer to tackle repairs themselves, a thorough inspection of the control module, sensors, and fuses can often reveal the source of the problem, although more complex issues may still necessitate professional assistance.

Why is the Cruise Control Not Working in a BMW 328xi?

When the cruise control in your BMW 328xi fails, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and further mechanical complications. A malfunctioning cruise control system can distract the driver, especially during long drives, increasing the likelihood of accidents. Common causes such as a failed control module, faulty sensors, or a blown fuse can disrupt the vehicle's performance and may lead to more significant issues if left unchecked. Additionally, problems with throttle actuation or the cruise control actuator can result in erratic behavior, which could compromise your driving experience and safety. If the ABS light is illuminated, it may indicate a deeper connection to the cruise control system, necessitating immediate attention. By diagnosing and resolving these issues early, you not only ensure a safer driving experience but also prevent potential costly repairs down the line.

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