2008 BMW 750Li Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 BMW 750Li and How to Fix Them

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Reviewed by

Andrew Hajjar

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 2008 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 2008 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 2008 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.

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.

What are the steps to diagnose the non-functioning cruise control in a 2008 BMW 750Li?

To effectively diagnose the non-functioning cruise control in your 2008 BMW 750Li, start with a methodical approach that emphasizes simplicity and efficiency. Begin by checking for fault codes using a BMW scanner, as this can quickly reveal any underlying issues within the ABS system. Next, inspect the clutch switch and gear identification switch located on the driver's side of the gearbox; these components are crucial for cruise control operation, and any malfunction here could be the culprit. Following this, examine the vehicle's fuse box for any blown fuses related to the cruise control system, replacing any that are faulty. Additionally, pay attention to the speed sensor, as dirt or damage can impede its function and lead to cruise control failures. Finally, after addressing these potential issues, take your vehicle for a test drive on the freeway to see if the cruise control operates as intended. By following this structured diagnostic approach, you can efficiently identify and resolve the issues affecting your cruise control system.

How urgent is it to address the non-functioning cruise control in a 2008 BMW 750Li?

Addressing a non-functioning cruise control in a 2008 BMW 750Li is crucial for both safety and driving comfort. While it may not seem like an immediate emergency, neglecting this issue can lead to dangerous situations, especially when relying on cruise control during long drives. A malfunctioning system can result from various factors, such as faulty switches or blown fuses, which can disrupt the power supply to essential components. This not only affects the cruise control's functionality but can also lead to further complications if left unresolved. Therefore, it is advisable to diagnose and repair any cruise control issues promptly, as doing so ensures a safer driving experience and maintains the vehicle's performance. By addressing these concerns early, you can avoid potential safety risks and enjoy the convenience that cruise control offers on your journeys.

Related 2008 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

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