BMW 745e XDrive Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your BMW 745e xDrive and How to Fix Them

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Reviewed by
Bo Fader
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 745e 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 745e 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 745e xDrive

When troubleshooting cruise control issues in your BMW 745e xDrive, it's essential to adopt a methodical diagnostic approach. Start by inspecting the cruise control button for any dirt or debris that may hinder its functionality; a clean and undamaged button is crucial for proper operation. Next, check the ABS control module and wheel speed sensors using a multimeter to ensure they are functioning correctly, as these components play a vital role in the cruise control system. Additionally, don't overlook the possibility of a blown fuse, which is a straightforward fix that can often resolve the problem. If these initial checks do not yield results, it may be time to consult a professional, as persistent issues could indicate a deeper malfunction that requires expert attention. By following this structured approach, you can effectively diagnose and potentially resolve cruise control problems in your BMW, saving time and money in the process.

What Could Cause the Cruise Control to Malfunction in a BMW 745e xDrive?

When dealing with cruise control malfunctions in a BMW 745e xDrive, it's crucial to understand the various factors that could be at play. One of the first indicators of a problem is often a warning light on the dashboard, signaling that the vehicle's system has detected an issue. Sensor problems are a frequent culprit, as faulty sensors can disrupt the cruise control's functionality. Additionally, electrical wiring issues, such as damaged or corroded connections, can lead to intermittent failures, making it essential to inspect the wiring harness for any signs of wear. Environmental factors, like adverse weather conditions, can also trigger malfunctions, so it's wise to consider the driving conditions when diagnosing the issue. Furthermore, checking the ABS control module and wheel speed sensors is vital, as these components directly impact the cruise control system's performance. Lastly, ensure that the vehicle is accurately reading speed; any discrepancies can lead to improper acceleration and deceleration commands. By understanding these common problems, DIY enthusiasts can take the first steps toward diagnosing and potentially resolving cruise control issues in their BMW 745e xDrive.

Why is the Cruise Control Not Working in a BMW 745e xDrive?

When dealing with a malfunctioning cruise control system in a BMW 745e xDrive, it is crucial to address the issue promptly to ensure both safety and vehicle performance. Ignoring symptoms such as warning lights or erratic behavior can lead to more significant problems down the line, including potential safety hazards while driving. Common culprits for cruise control failure include dirty or faulty speed sensors, which are essential for the system's operation. If these sensors are compromised, the vehicle's computer may not receive the necessary information, resulting in a malfunction. Additionally, the cruise control may not engage until the engine reaches a specific temperature, which can be a normal operational characteristic but may also indicate a deeper issue if it consistently fails to activate. Intermittent functionality can also signal underlying problems that require immediate attention. Therefore, it is advisable to diagnose and resolve any cruise control issues as soon as they arise to maintain safe driving conditions and prevent further damage to the vehicle.

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BMW 745e xDrive Cruise Control Not Working