2016 Audi S3 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Audi S3 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 2016 Audi S3 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 2016 Audi S3 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 steps to diagnose the cruise control issue in a 2016 Audi S3?

When diagnosing a cruise control issue in a 2016 Audi S3, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex components. Begin by examining the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, inspect the cruise control buttons on the steering wheel to ensure they are functioning properly, since any malfunction here can impede the system's performance. Utilizing a diagnostic scanner to retrieve error codes from the vehicle's onboard computer can provide critical insights into specific issues affecting the cruise control system. Additionally, checking the speed sensors is vital, as faulty sensors can prevent the system from maintaining a consistent speed. It's also important to inspect the wiring and connections for any signs of damage or corrosion, as these can significantly disrupt communication between components. Finally, testing the cruise control module will help determine if it is operating correctly, as a malfunctioning module can lead to engagement problems. By systematically addressing each of these areas, you can effectively diagnose and resolve the cruise control issue in your Audi S3.

What are the common problems that could cause the cruise control to stop working in a 2016 Audi S3?

When troubleshooting the cruise control system in a 2016 Audi S3, it's essential to understand the common problems that may lead to its malfunction. One frequent issue is a faulty cruise control switch, which can prevent the system from engaging properly. Additionally, speed sensor problems can disrupt the system's ability to maintain a set speed, while a malfunctioning brake light switch may cause the cruise control to disengage unexpectedly when the brakes are applied. Another potential culprit is the throttle actuator; if it fails, the cruise control may struggle to adjust the throttle position accurately. Electrical problems, such as wiring issues or faults, can also interfere with the system's operation. Lastly, vacuum leaks in the engine can impact the performance of vacuum-operated components within the cruise control system. By identifying and addressing these issues, you can effectively troubleshoot and potentially resolve the cruise control problems in your Audi S3.

How urgent is it to address the malfunctioning cruise control in a 2016 Audi S3?

When it comes to a malfunctioning cruise control system in a 2016 Audi S3, the urgency of addressing the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. This unpredictability not only endangers the driver and passengers but also poses a threat to other road users. Moreover, neglecting this malfunction can result in higher fuel consumption, as the system may not maintain the desired speed efficiently. Over time, this can lead to additional wear and tear on the vehicle's components, potentially resulting in costly repairs. Therefore, it is crucial to have the cruise control system inspected and repaired by a qualified mechanic as soon as symptoms arise. Prompt action ensures not only the safety of everyone on the road but also the longevity and performance of your Audi S3.

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