2017 BMW 320i Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2017 BMW 320i

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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 2017 BMW 320i 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 2017 BMW 320i 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 2017 BMW 320i?

To diagnose the non-functioning cruise control in your 2017 BMW 320i, start by checking the basics to ensure the system is activated and that the speed sensor is operational. Next, inspect the fuse box for any blown fuses that could disrupt the cruise control functionality. If the basics check out, use an OBD-II scanner to identify any error codes that may indicate specific issues within the system. Following this, examine the cruise control module for any visible damage or loose connections, as these can often lead to malfunctions. Additionally, test the cruise control switch to confirm it is working properly. Finally, inspect the wiring harness for any signs of damage or disconnections that could affect the system's performance. If these steps do not resolve the issue, it may be time to consult a professional mechanic for a more thorough diagnosis.

What are the common problems that could cause the cruise control to stop working in a 2017 BMW 320i?

When the cruise control in a 2017 BMW 320i ceases to function, it can be frustrating, but understanding the common problems can aid in diagnosing the issue. One of the primary culprits is a faulty speed sensor, which is crucial for the cruise control system to accurately gauge the vehicle's speed. If this sensor is malfunctioning, the system may fail to engage or maintain the desired speed. Another potential issue is a defective brake light switch; since this switch is designed to disengage cruise control when the brakes are applied, any malfunction can disrupt the system's operation. Additionally, problems with the throttle actuator can hinder the cruise control's ability to maintain a steady speed, leading to erratic performance. Electrical issues, such as blown fuses or wiring problems, can also prevent the cruise control from functioning properly, as can vacuum leaks in the engine that affect overall system performance. By identifying and addressing these common issues, DIYers can effectively troubleshoot and restore the cruise control functionality in their BMW 320i.

How urgent is it to address the malfunctioning cruise control in a 2017 BMW 320i?

Addressing a malfunctioning cruise control in a 2017 BMW 320i is of utmost importance due to the safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could endanger both the driver and others on the road. Additionally, neglecting this issue can compromise the overall driving experience, as the convenience of cruise control is diminished, making long drives more tiring and less enjoyable. Furthermore, a faulty cruise control system may lead to inconsistent speed management, which can inadvertently increase fuel consumption, adding to your expenses. By addressing the malfunction promptly, you not only enhance your safety but also prevent potential further damage to the vehicle's systems, ultimately saving on costly repairs in the future. Therefore, it is crucial to take immediate action to ensure your vehicle remains safe and efficient on the road.

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2017 BMW 320i Cruise Control Issues & Repair Costs