2008 BMW M6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 BMW M6 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 2008 BMW M6 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.

How much does it cost to fix a 2008 BMW M6 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 cruise control issue in a 2008 BMW M6?

To effectively diagnose a cruise control issue in your 2008 BMW M6, begin with a systematic approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by checking for blown fuses in the fuse box, as a blown fuse can interrupt the power supply to critical components like the cruise control switch and the Vehicle Speed Sensor (VSS). Next, pay attention to any warning lights on your dashboard, particularly the ABS light, as this may indicate a related problem; the ABS wheel speed sensors are interconnected with the cruise control system, and addressing any ABS issues could potentially resolve your cruise control malfunction. If these initial checks do not yield results, it may be time to seek professional assistance, where a technician can conduct a thorough diagnosis to pinpoint the exact cause of the issue. By following this structured diagnostic approach, you can efficiently troubleshoot and potentially fix the cruise control problem in your BMW M6.

What are the common problems that could cause the cruise control to stop working in a 2008 BMW M6?

When troubleshooting cruise control issues in a 2008 BMW M6, it's essential to consider several common problems that could be at play. A blown fuse is often the first thing to check, as it can easily disrupt the electrical system controlling the cruise control. Additionally, a faulty brake light or a malfunctioning brake switch can prevent the cruise control from engaging, as these components are integral to the system's safety features. It's also important to examine the throttle control system and the ABS, as any issues here can directly impact cruise control functionality. In older models, a broken vacuum line may be the culprit, affecting the system's ability to maintain speed. Lastly, if the vehicle has high mileage, the condition of the clutch and pressure plate should be assessed, as their wear can lead to complications with the cruise control system. By systematically checking these components, you can effectively diagnose and address the underlying issues affecting your BMW M6's cruise control.

How urgent is it to address the non-functioning cruise control in a 2008 BMW M6?

Addressing the non-functioning cruise control in a 2008 BMW M6 should be considered a priority, as neglecting this issue can lead to both safety risks and a diminished driving experience. Cruise control is designed to enhance convenience, particularly on long journeys, by maintaining a steady speed and reducing driver fatigue. When this system malfunctions, it can create discomfort and increase the likelihood of erratic driving behavior, which may compromise safety on the road. A common first step in troubleshooting is to check for blown fuses, as this is often a straightforward fix that can restore functionality without the need for professional intervention. However, if the problem persists, it may indicate deeper issues related to sensors or the vehicle's internal computer, which could lead to more significant damage if left unaddressed. Therefore, while it may not seem like an immediate emergency, taking prompt action to diagnose and resolve cruise control issues is essential for maintaining the overall performance and safety of your BMW M6.

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