2020 Audi S7 Sportback Cruise Control Isn't Working

Fixing cruise control issues in the 2020 Audi S7 Sportback

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Reviewed by
Devin Cabugcal
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 2020 Audi S7 Sportback 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 2020 Audi S7 Sportback 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 2020 Audi S7 Sportback?

When diagnosing a cruise control issue in your 2020 Audi S7 Sportback, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, check the cruise control buttons on the steering wheel to ensure they are working properly, since faulty buttons can lead to operational failures. Utilizing an OBD-II scanner to retrieve any error codes is an essential step, as these codes can provide insights into specific problems within the cruise control system. Additionally, confirm that the speed sensors are functioning correctly, as they play a vital role in the system's operation. Pay attention to the wiring connections as well; any loose or damaged wires can significantly impact performance. Finally, test the cruise control module itself, as a malfunction here could be the source of the issue. If these steps do not resolve the problem, it may be wise to consult a professional mechanic or an authorized Audi service center for a thorough diagnosis and repair. By adhering to this structured diagnostic 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 2020 Audi S7 Sportback?

When troubleshooting the cruise control system in a 2020 Audi S7 Sportback, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits 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, issues with the brake light switch can disrupt the cruise control's operation, as it relies on signals from the brake system to function correctly. Another potential issue is a malfunction in the throttle control, which may involve a faulty throttle position sensor or actuator, affecting the system's ability to sustain speed. Electrical problems, such as blown fuses or wiring issues, can also impede the cruise control's functionality, as can software glitches within the vehicle's onboard computer system. By identifying and addressing these common problems, you can effectively troubleshoot and potentially restore the cruise control system in your Audi S7 Sportback.

How urgent is it to address the malfunctioning cruise control in a 2020 Audi S7 Sportback?

Addressing a malfunctioning cruise control system in a 2020 Audi S7 Sportback is of utmost urgency due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can result in dangerous driving conditions and increase the likelihood of accidents. Moreover, neglecting this issue can exacerbate the problem, potentially leading to more extensive and costly repairs down the line. It is essential to recognize that timely intervention not only safeguards your safety but also preserves the integrity of your vehicle. Consulting with a certified Audi technician is highly recommended, as they possess the expertise to accurately diagnose and repair the cruise control system, ensuring it operates safely and effectively. Prioritizing this repair is crucial for maintaining optimal vehicle performance and preventing future complications.

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