2017 Audi A4 Quattro Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2017 Audi A4 Quattro

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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 2017 Audi A4 Quattro 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 Audi A4 Quattro 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2017 Audi A4 Quattro?

When troubleshooting the non-functioning cruise control in a 2017 Audi A4 Quattro, it's essential to adopt a systematic diagnostic approach that begins with the simplest solutions before progressing to more complex issues. Start by checking the cruise control fuse in the fuse box, as a blown fuse can often be the culprit behind the malfunction. Next, inspect the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent proper engagement. Utilizing a diagnostic scanner to review any error codes related to the cruise control system can provide valuable insights into potential electronic issues. Additionally, the vehicle speed sensor should be examined, as it is critical for the cruise control's functionality. Don't overlook the brake and clutch switches, which must operate correctly to disengage the cruise control when either pedal is pressed. Lastly, inspect the wiring connections for any signs of damage or corrosion, and if all else fails, consider testing the cruise control module itself to determine if it requires replacement. By following this structured approach, you can effectively identify and address the root cause of the cruise control issue in your Audi A4 Quattro.

What are the common problems that could cause the cruise control to stop working in a 2017 Audi A4 Quattro?

When the cruise control in your 2017 Audi A4 Quattro ceases to function, it can be frustrating, but understanding the common problems can guide you in troubleshooting the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge the vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain speed. Another common issue is related to the brake light switch; if this switch is defective, it can inadvertently signal the cruise control to deactivate whenever the brakes are applied, disrupting its operation. Additionally, problems with the throttle control system, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to maintain a steady speed. Electrical issues, including blown fuses or wiring faults, can also impact the cruise control's functionality, making it crucial to check the electrical connections. Lastly, vacuum leaks in the engine can affect the cruise control system, as it relies on vacuum pressure to operate effectively. By identifying and addressing these potential problems, you can restore the cruise control functionality in your Audi A4 Quattro, making your driving experience smoother and more enjoyable.

How urgent is it to address the non-functioning cruise control in my 2017 Audi A4 Quattro?

When your 2017 Audi A4 Quattro's cruise control stops functioning, it may not seem like an urgent issue at first glance, but addressing it promptly is crucial for maintaining your vehicle's overall health. While the immediate safety risks may not be as pronounced as those associated with malfunctioning brakes or steering, a faulty cruise control system can signal deeper electronic or sensor problems that could affect other critical systems in your car. Ignoring this issue could lead to more significant complications down the line, potentially resulting in costly repairs and diminished vehicle performance. Therefore, it is advisable to consult a qualified mechanic or an authorized Audi service center to diagnose and resolve the problem effectively. By taking action sooner rather than later, you can ensure your Audi A4 Quattro remains safe and reliable on the road.

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