2017 Audi A6 Quattro Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Audi A6 Quattro and How to Fix Them

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Reviewed by
Bo Fader
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 A6 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 A6 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 A6 Quattro?

When faced with a non-functioning cruise control in your 2017 Audi A6 Quattro, it's important to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. It's also crucial to verify the speed sensors, which are integral to the cruise control's functionality; faulty sensors can disrupt the system's performance. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific problems affecting the cruise control. Additionally, examine the brake and clutch switches, as these components are designed to disengage the cruise control when the pedals are pressed. Finally, inspect the wiring and connections associated with the cruise control system for any loose or damaged parts. By following these steps, you can effectively troubleshoot the issue and potentially restore functionality to your cruise control system. If the problem persists, seeking assistance from a professional mechanic may be necessary.

What are the common problems that could cause the cruise control to stop working in a 2017 Audi A6 Quattro?

When troubleshooting the cruise control system in a 2017 Audi A6 Quattro, it's essential to understand the common problems that may lead to its malfunction. One of the primary issues could be a faulty brake light switch, which is crucial for the system's operation as it disengages cruise control when the brake pedal is pressed. Additionally, problems with the speed sensor can hinder the system's ability to maintain a constant speed, while a malfunctioning throttle actuator may prevent the engine from responding correctly to cruise control settings. Another potential culprit is a defective cruise control module, which can disrupt the entire system's functionality. Lastly, electrical issues such as blown fuses or wiring problems can also interfere with the cruise control operation. By identifying and addressing these common issues, you can effectively troubleshoot and restore the cruise control functionality in your Audi A6 Quattro.

How urgent is it to address the malfunctioning cruise control in a 2017 Audi A6 Quattro?

Addressing a malfunctioning cruise control in your 2017 Audi A6 Quattro is not just a matter of convenience; it is a critical safety concern that should be prioritized. When cruise control fails, it can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Moreover, a malfunctioning system detracts from the overall driving experience, making long journeys less enjoyable and more stressful. Ignoring these symptoms can also have financial repercussions, as it may lead to decreased fuel efficiency and could potentially cause damage to other vehicle components over time. Therefore, it is essential to take immediate action to diagnose and repair any cruise control issues to ensure both your safety and the longevity of your vehicle.

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