2015 BMW 750Li Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 BMW 750Li and How to Fix Them

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Reviewed by

Aisha

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2015 BMW 750Li cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.

Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
Control Module: A faulty control module can result in 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 acceleration and poor engine 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.

What are the best BMW repair shops?

RepairPal Certified shops can diagnose and repair your 2015 BMW 750Li electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How much does it cost to fix a 2015 BMW 750Li 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 2015 BMW 750Li?

When diagnosing the non-functioning cruise control in your 2015 BMW 750Li, start with a thorough examination of the dashboard for any warning messages that could indicate specific issues with the cruise control system. This initial step can provide valuable insights into the problem. Next, inspect the fuse box for any blown fuses related to the cruise control; replacing a blown fuse is a straightforward fix that may resolve the issue. After addressing these basic checks, safely test the cruise control function on the road to see if it engages properly. If it fails to engage, the problem may lie deeper within the system. At this point, examine the cruise control switch for any visible damage or wear, as a faulty switch can prevent the system from functioning. If these steps do not yield results, it may be time to consult a BMW service center or a qualified mechanic, as they possess the specialized tools and expertise necessary to diagnose more complex issues. By following this structured approach, you can effectively troubleshoot and potentially resolve the cruise control malfunction in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2015 BMW 750Li?

Addressing the non-functioning cruise control in your 2015 BMW 750Li is not just a matter of convenience; it is a critical safety concern that warrants immediate attention. A malfunctioning cruise control system can signal deeper issues within your vehicle, potentially leading to more severe performance problems such as erratic acceleration or inaccurate speed readings. These complications can compromise your driving experience and safety, especially during long trips where cruise control is essential for maintaining a steady speed and reducing fatigue. Moreover, since the cruise control system is interconnected with other vehicle components, neglecting this issue could inadvertently affect other systems, leading to costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of your cruise control system to ensure the overall functionality and safety of your BMW, preventing further complications and enhancing your driving comfort.

Related 2015 BMW 750Li Problems

Read about related problems experienced by other BMW 750Li drivers like you.

BMW 750Li steering angle sensor issue with turn signal malfunction and DSC warning

Some BMW 750Li owners report experiencing issues with the steering angle sensor, including turn signal malfunctions and DSC (Dynamic Stability Control) warnings. These problems can arise due to the critical role the steering angle sensor plays in the vehicle's stability control systems. A common symptom reported is the turn signal failing to disengage after straightening the wheel, which can be frustrating for drivers. Additionally, some owners notice random DSC malfunctions or warning lights related to ABS or traction control, often linked to a dirty steering angle sensor. While cleaning the sensor's contact points may provide a temporary fix, persistent issues may necessitate a complete sensor replacement and reprogramming of the assembly under the steering wheel. It is crucial for owners to address these steering angle sensor problems promptly to maintain the safety and proper functioning of their BMW 750Li's DSC system and related components.

3 model years affected

Avg Mileage: 1104,779

16 others reported problem

5 comments

BMW 750Li leveling system light activated after air strut service

Some BMW 750Li owners report experiencing issues with the Level Control System after servicing the air struts, indicated by the activation of the leveling system light. These problems may arise from a malfunctioning air suspension, which can prevent the vehicle from raising or self-leveling properly. Symptoms of a failing suspension system include warning messages about Level Control Malfunction, hissing sounds from air springs, and imbalances in car height, alongside compressor engagement issues and prolonged operation. Additionally, replacing air struts may lead to uneven air distribution or excessive raising of the rear of the vehicle. Leaking air springs can further disrupt suspension balance, triggering warning messages. Owners are advised to check for leaks, ensure proper air distribution, and verify that the air suspension system is functioning correctly to address these concerns.

1 model year affected

Avg Mileage: 1106,540

2 others reported problem

1 comment

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