2016 BMW I8 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 BMW i8 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 2016 BMW i8 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 2016 BMW i8 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 cruise control issue in a 2016 BMW i8?

To effectively diagnose a cruise control issue in your 2016 BMW i8, start with a systematic approach that prioritizes simpler solutions before delving into more complex diagnostics. Begin 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). If the fuses are intact, proceed to inspect the ABS control module and wheel speed sensors using a multimeter to conduct diode and resistance tests, which can reveal underlying problems. Next, ensure that the ZGW (Gateway Module) is updated to the latest i-step, as discrepancies between the i-step levels of the DKOMBI and ZGW can lead to cruise control malfunctions. Finally, utilize the ISTA diagnostic tool for a comprehensive assessment, as it can guide you through checking the wiring and may indicate if the steering wheel module needs replacement. By following this structured diagnostic approach, you can efficiently identify and address the cruise control issues in your BMW i8.

What are the common problems that could cause the cruise control to stop working in a 2016 BMW i8?

When dealing with cruise control issues in a 2016 BMW i8, it's essential to understand the common problems that may arise. One frequent issue is a blown fuse, which can easily be checked and replaced if necessary. Another potential culprit is a defective brake pedal switch; if this switch fails, it can prevent the cruise control from engaging, making it crucial to inspect and test its functionality. Additionally, problems with the throttle control system can disrupt communication between the cruise control and the engine, leading to malfunctions. It's also important to consider the ABS (Anti-lock Braking System), as any malfunctions here can interfere with the cruise control's ability to maintain speed. Lastly, while less common in modern vehicles, vacuum line issues can still occur, particularly in older systems, and can prevent the cruise control from operating correctly. By understanding these potential problems, DIYers can effectively diagnose and address cruise control issues in their BMW i8.

How urgent is it to address the malfunctioning cruise control in my 2016 BMW i8?

When it comes to your 2016 BMW i8, addressing a malfunctioning cruise control system should not be taken lightly. While it may not seem like an immediate emergency, the implications of neglecting this issue can be significant. A malfunctioning cruise control can lead to dangerous driving situations, especially if the system fails to disengage when needed. Common culprits behind cruise control failures include a blown fuse, defective brake light switch, or issues with the vehicle speed sensor, all of which can compromise your safety on the road. Additionally, if left unchecked, these problems could escalate, potentially leading to more extensive and costly repairs. Therefore, it is crucial to have your cruise control system inspected and repaired promptly to ensure not only your safety but also the optimal performance of your BMW i8.

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2016 BMW i8 Cruise Control Not Working: Causes & Repairs