2015 BMW M3 Cruise Control Isn't Working

Troubleshooting Common Issues with the Cruise Control System in Your 2015 BMW M3 and How to Fix Them

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Reviewed by
Aisha
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 2015 BMW M3 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 2015 BMW M3 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 steps should I take to diagnose the cruise control issue in my 2015 BMW M3?

To effectively diagnose the cruise control issue in your 2015 BMW M3, start with a systematic approach that prioritizes simpler fixes before delving into more complex diagnostics. Begin by checking for blown fuses in the fuse box, as a blown fuse can disrupt the power supply to critical components like the cruise control switch and the Vehicle Speed Sensor (VSS). If the fuses are intact, inspect the cruise control buttons and lever, as malfunctioning controls can prevent the system from engaging. Pay attention to the condition of the clock spring behind the steering wheel, which may also contribute to the problem. Next, evaluate the Control Module and Sensor, as these components are essential for the cruise control system's operation. If you have access to a multi-meter, use it to check the ABS control module and wheel speed sensors for any faults, as issues here can also affect cruise control functionality. If these DIY diagnostics do not resolve the issue, it may be time to consult a professional for further repairs, ensuring that you address the problem effectively and safely.

What are the common problems that could cause the cruise control to stop working in a 2015 BMW M3?

When the cruise control in your 2015 BMW M3 ceases to function, it can be frustrating, but understanding the common problems can guide you in diagnosing the issue. One of the first things to check is the fuse associated with the cruise control system, as a blown fuse is a frequent cause of malfunction. If the fuse is intact, the next step is to inspect the throttle control system and the ABS, as faults in these areas can disrupt the cruise control's operation. Additionally, a defective brake pedal switch is another common culprit; if this switch fails, it may prevent the cruise control from engaging. For those with older systems, a broken vacuum line could also be a factor, although this is less common in newer models. By systematically checking these components, you can identify the root cause of the cruise control issue and take the necessary steps to restore its functionality.

How urgent is it to address the non-functioning cruise control in a 2015 BMW M3?

Addressing a non-functioning cruise control system in a 2015 BMW M3 is an issue that should not be overlooked, as it carries significant implications for both safety and driving comfort. A malfunctioning cruise control can lead to unpredictable vehicle behavior, which poses a safety risk, particularly if it affects acceleration or speed regulation. This is especially critical for drivers who frequently travel on highways, where maintaining a consistent speed is essential for safe driving. Additionally, the convenience that cruise control offers during long trips cannot be understated; it enhances comfort and reduces fatigue, making timely repairs beneficial for an improved driving experience. The diagnostic process can be complex, often requiring a thorough examination of various components, which may take time and expertise to resolve. Furthermore, repair costs can vary, with some issues potentially leading to expensive fixes if not addressed promptly. Therefore, considering these factors, it is advisable to prioritize the repair of a malfunctioning cruise control system to ensure both safety and driving enjoyment.

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2015 BMW M3 Cruise Control Issues & Repairs | RepairPal