2006 BMW 550i Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 BMW 550i and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2006 BMW 550i 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 2006 BMW 550i 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2006 BMW 550i?

To effectively troubleshoot the non-functioning cruise control in your 2006 BMW 550i, start by examining the cruise control switch, including the res+ and res- functions, to confirm they are operational. Next, check the brake pedal and clutch lever, as well as the ABS and speed sensors, since these components play a crucial role in the cruise control system's functionality. It's also important to scan for any diagnostic trouble codes using an OBD2 scanner, which can reveal specific issues like a malfunctioning Cruise Control Cancel Circuit. Pay attention to any warning lights on the dashboard, such as the Check Engine Light, as these may indicate broader vehicle problems. Additionally, inspect the cruise control buttons and the engine controller to ensure they are receiving the correct signals when activated. Finally, consider the possibility of underlying issues, such as a faulty steering angle sensor or control module, which could be impacting the cruise control's performance. By following these steps, you can systematically diagnose and address the problem, potentially restoring your cruise control functionality without the need for professional assistance.

What are the common problems that could cause the cruise control to stop working in a 2006 BMW 550i?

When dealing with a non-functional cruise control system in a 2006 BMW 550i, it's essential to understand the common problems that could be at play. One frequent culprit is malfunctioning sensors, which can lead to electrical glitches that disrupt the cruise control's operation. Additionally, issues with the battery may also contribute to these electrical problems. Another area to investigate is the control module; if it is faulty or if the power steering fluid levels are low, it can trigger the BMW Active Steering Inactive warning, further complicating the cruise control functionality. Furthermore, a malfunctioning steering angle sensor can prevent the cruise control from engaging properly. It's also wise to check for blown fuses or problems within the instrument cluster, as these can indicate broader electrical issues that may affect the cruise control system. By systematically examining these components, DIY enthusiasts can identify and address the root causes of cruise control failure, restoring functionality to their vehicle.

How urgent is it to address the non-functioning cruise control in a 2006 BMW 550i?

Addressing the non-functioning cruise control in your 2006 BMW 550i is not just a matter of convenience; it is a critical safety concern that warrants immediate attention. When cruise control fails, it can disrupt your driving experience, particularly on long journeys where maintaining a steady speed is essential for comfort and fuel efficiency. Moreover, a malfunctioning cruise control system may signal deeper issues within your vehicle, such as problems with sensors or other components that could compromise overall performance. Ignoring these symptoms can lead to more significant mechanical failures, potentially resulting in costly repairs and unsafe driving conditions. Therefore, it is crucial to diagnose and resolve any cruise control issues promptly to ensure your vehicle operates safely and efficiently, safeguarding both your driving experience and the longevity of your BMW 550i.

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