2017 Audi A7 Quattro Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Audi A7 Quattro 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 2017 Audi A7 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 A7 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 steps should I take to diagnose the cruise control issue in my 2017 Audi A7 Quattro?

When diagnosing the cruise control issue in your 2017 Audi A7 Quattro, it's crucial to follow a methodical diagnostic approach that prioritizes simpler solutions before delving into more complex assessments. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are working properly, since faulty buttons can lead to malfunctions. Utilizing an OBD-II scanner to check for error codes is essential, as it can pinpoint specific issues within the cruise control system. Additionally, verify that the speed sensors are functioning correctly, as they play a vital role in maintaining speed. It's also important to examine the wiring connections for any signs of damage or corrosion, which can impede signal flow. If these preliminary checks do not resolve the issue, testing the cruise control module is the next logical step, as a malfunctioning module can prevent the system from engaging. Should you find yourself unable to diagnose the problem after these steps, consulting a professional mechanic with experience in Audi vehicles is advisable for a thorough diagnosis and repair. By following this structured approach, you can effectively identify and address the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2017 Audi A7 Quattro?

When dealing with a malfunctioning cruise control system in a 2017 Audi A7 Quattro, it's essential to understand the common problems that may be at play. One of the primary culprits is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, issues with the brake light switch can lead to unexpected disengagement of the cruise control when the brake pedal is pressed, creating further frustration. Another potential issue is a malfunctioning throttle actuator, which can hinder communication between the cruise control system and the engine, resulting in operational failures. Furthermore, a defective cruise control module may prevent the system from receiving the necessary signals to function correctly. Lastly, various electrical problems, such as wiring issues or blown fuses, can also interfere with the cruise control's performance. If you encounter these issues, it's advisable to conduct a thorough inspection or consult a qualified mechanic to accurately diagnose and resolve the problem.

How urgent is it to address the malfunctioning cruise control in a 2017 Audi A7 Quattro?

Addressing a malfunctioning cruise control system in a 2017 Audi A7 Quattro is of utmost importance due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can create dangerous driving conditions for both the driver and others on the road. Additionally, a faulty cruise control system detracts from the overall driving experience, making long journeys less convenient and more stressful. Ignoring these symptoms not only compromises safety but can also lead to more extensive damage to the vehicle's systems, resulting in costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of any cruise control issues to ensure safe and efficient vehicle operation.

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