BMW 328i GT XDrive Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your BMW 328i GT 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a BMW 328i GT 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 BMW 328i GT 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.

Troubleshooting Cruise Control Issues in a BMW 328i GT xDrive

When troubleshooting cruise control issues in your BMW 328i GT xDrive, it's essential to adopt a systematic diagnostic approach. Start by checking the simplest potential problems, such as blown fuses in the vehicle's fuse box, as this is a common and easily fixable issue. If the fuse is intact, inspect the throttle position sensor and speed sensors, as these components are crucial for the cruise control system to function correctly. Look for any signs of wiring damage or dirt that could interfere with sensor readings. If the problem persists, consider the possibility of intermittent issues, such as a faulty cruise control actuator, which may fail under certain conditions like high engine temperatures. Lastly, ensure that your vehicle's speed is being accurately read by the engine control module (ECM), as incorrect speed readings can prevent the cruise control from engaging. By following this methodical approach, you can effectively diagnose and potentially resolve cruise control malfunctions in your BMW.

What Could Cause Cruise Control Issues in a BMW 328i GT xDrive?

When troubleshooting cruise control issues in your BMW 328i GT xDrive, it's essential to understand the common problems that may be affecting the system. A malfunctioning control module, sensor, or switch is often at the heart of the issue, leading to an inability to engage or maintain cruise control. Additionally, throttle actuation problems, particularly those stemming from a faulty throttle position sensor, can cause the engine's computer to mismanage fuel delivery, which may result in noticeable black exhaust emissions. To effectively diagnose a 'cruise control malfunction,' you should inspect for blown fuses, battery issues, and dirty or damaged speed sensors, as well as check the wiring and throttle control components. Regular maintenance and prompt attention to these potential issues can significantly enhance the reliability of your vehicle's cruise control system, ensuring a smoother driving experience.

Why is the Cruise Control Not Working in a BMW 328i GT xDrive?

When your cruise control is not functioning in a BMW 328i GT xDrive, it’s crucial to address the issue without delay. Ignoring the problem can lead to unsafe driving conditions, especially on long trips where maintaining a steady speed is essential for safety and fuel efficiency. Common causes of cruise control failure include malfunctioning control modules, sensors, or switches, which can disrupt the system's operation. Additionally, a faulty throttle position sensor may cause the engine to behave erratically, potentially leading to increased fuel consumption and emissions. A blown fuse is another frequent culprit that can easily be overlooked but is vital to check, as it can completely disable the cruise control system. Furthermore, if the brake pedal switch is malfunctioning, it may falsely signal that the brakes are engaged, preventing cruise control from activating. Lastly, issues with the ABS system can also interfere with cruise control functionality, as these systems are interconnected. Therefore, it is essential to diagnose and resolve these issues promptly to ensure safe driving and prevent further damage to your vehicle.

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