2018 BMW 330e Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2018 BMW 330e

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Reviewed by
Andrew Hajjar
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 2018 BMW 330e 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 2018 BMW 330e 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 non-functioning cruise control in my 2018 BMW 330e?

To effectively diagnose the non-functioning cruise control in your 2018 BMW 330e, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box, as a blown fuse is a straightforward fix that can often resolve the issue. Next, examine the cruise control buttons on the steering wheel for any signs of damage or obstruction; cleaning them can sometimes restore functionality. Following this, verify the speed sensor, which is crucial for the cruise control system's operation, as a malfunctioning sensor can lead to failure. Utilizing an OBD-II scanner to check for error codes can provide insights into any underlying problems that may not be immediately visible. Additionally, ensure that the brake and clutch switches are functioning correctly, as these components are designed to disengage the cruise control when engaged. Finally, inspect the wiring and connections for any damage or corrosion, as these can disrupt the system's operation. If these steps do not resolve the issue, consulting a professional mechanic or an authorized BMW service center is advisable, as they possess the specialized knowledge and tools necessary for more complex diagnostics. By following this structured approach, you can efficiently identify and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW 330e?

When troubleshooting the cruise control system in a 2018 BMW 330e, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can cause the cruise control to disengage unexpectedly, often triggered by pressing the brake pedal, even when it's not intended. Another critical component to consider is the throttle actuator; if it malfunctions, it can disrupt communication between the cruise control system and the engine, resulting in operational failures. Electrical issues, such as blown fuses or wiring problems, can also impede the cruise control's functionality, as can software glitches within the vehicle's control module. By identifying and addressing these common issues, DIY enthusiasts can effectively restore the cruise control functionality in their BMW 330e.

How urgent is it to address the malfunctioning cruise control in a 2018 BMW 330e?

Addressing a malfunctioning cruise control system in a 2018 BMW 330e is of utmost importance due to the safety risks it poses. When cruise control fails, it can lead to unpredictable speed changes, particularly hazardous during highway driving where maintaining a consistent speed is crucial. Additionally, such malfunctions may signal deeper issues within the vehicle's electronic systems or sensors, which could compromise overall vehicle performance and safety. Ignoring these symptoms not only increases the risk of accidents but can also lead to decreased fuel efficiency and escalating repair costs over time. Therefore, it is essential for DIY enthusiasts to prioritize the diagnosis and repair of cruise control issues promptly, ensuring both their safety and the longevity of their vehicle.

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