2019 Audi A7 Sportback Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2019 Audi A7 Sportback and How to Fix Them

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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 2019 Audi A7 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 2019 Audi A7 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 2019 Audi A7 Sportback?

To effectively diagnose the cruise control issue in your 2019 Audi A7 Sportback, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on your steering wheel for any signs of damage or wear that could hinder their operation. Utilizing an OBD-II scanner is crucial at this stage; it allows you to identify any error codes that may point to specific problems within the cruise control system. Following this, check the speed sensors, as they are integral to the system's performance. Ensure that all wiring connections related to the cruise control are secure and undamaged, as loose or frayed wires can lead to malfunctions. If these preliminary checks do not resolve the issue, proceed to test the cruise control module itself to confirm it is functioning correctly. Should you still encounter difficulties, seeking assistance from a professional mechanic or an authorized Audi service center is advisable for a thorough diagnosis and resolution. By following this structured diagnostic approach, you can efficiently 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 2019 Audi A7 Sportback?

When troubleshooting the cruise control system in a 2019 Audi A7 Sportback, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue 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, problems with the brake light switch can inadvertently cause the cruise control to disengage when the brake pedal is pressed, even if the driver does not intend to deactivate it. Another potential culprit is a malfunction in the throttle control system, which may involve a faulty throttle position sensor or actuator, hindering the cruise control's performance. Electrical issues, such as blown fuses or wiring problems, can also interfere with the cruise control module's functionality. Lastly, software glitches within the vehicle's onboard computer can lead to erratic behavior or complete failure of the cruise control system. By identifying and addressing these common issues, DIY enthusiasts can effectively diagnose and potentially resolve cruise control problems in their Audi A7 Sportback.

How urgent is it to address the malfunctioning cruise control in a 2019 Audi A7 Sportback?

Addressing a malfunctioning cruise control in a 2019 Audi A7 Sportback is of utmost importance due to the significant 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, 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 severe issues within the vehicle's systems, resulting in costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of cruise control problems promptly to ensure safe driving and maintain the vehicle's performance.

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2019 Audi A7 Sportback Cruise Control Issues & Solutions