2016 Audi A3 Quattro Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Audi A3 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 2016 Audi A3 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 2016 Audi A3 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 steps to diagnose the non-functioning cruise control in a 2016 Audi A3 Quattro?

When diagnosing the non-functioning cruise control in a 2016 Audi A3 Quattro, it's crucial to follow a structured diagnostic approach that prioritizes simpler issues before tackling more complex ones. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and straightforward problem to fix. Next, inspect the cruise control buttons on the steering wheel to ensure they are functioning correctly, since any malfunction here can prevent the system from engaging. After that, verify the speed sensors, as faulty sensors can lead to significant disruptions in cruise control functionality. It's also important to examine the brake pedal switch, which plays a vital role in the cruise control system; a malfunctioning switch can disable the cruise control entirely. Utilizing a diagnostic scanner to check for error codes can help identify specific issues affecting the system. Lastly, inspect the wiring and connections related to the cruise control for any signs of damage or loose connections, as these can severely impact performance. By systematically addressing these components, you can effectively diagnose and resolve the underlying issues with the cruise control system in your Audi A3 Quattro.

What are the common problems that could cause the cruise control to stop working in a 2016 Audi A3 Quattro?

When the cruise control in your 2016 Audi A3 Quattro ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the first areas to check is the cruise control switch; if it’s faulty, it may not engage or disengage as intended. Additionally, the speed sensor plays a crucial role in maintaining your set speed, so any issues here could disrupt the system's performance. Another common culprit is the brake light switch; if this switch malfunctions, it can cause the cruise control to disengage unexpectedly when you apply the brakes. Furthermore, the throttle actuator is essential for adjusting the throttle position, and any failure in this component can hinder the cruise control's operation. Lastly, don’t overlook potential electrical problems, such as wiring issues or blown fuses, which can also affect the cruise control system. By systematically checking these components, you can identify the root cause of the problem and determine whether a simple fix is possible or if professional assistance is needed.

How urgent is it to address the non-functioning cruise control in my 2016 Audi A3 Quattro?

When it comes to your 2016 Audi A3 Quattro, the urgency of addressing a non-functioning cruise control system should not be underestimated. While it may not pose an immediate safety risk like malfunctioning brakes or steering, the cruise control system is integral to your driving experience, particularly on long journeys where it helps reduce fatigue and improve fuel efficiency. Ignoring this issue could lead to more significant problems, as a malfunctioning cruise control may signal underlying electronic or sensor issues that could affect other critical systems in your vehicle. Additionally, delaying repairs can result in further damage, leading to more costly fixes down the line. Therefore, it is advisable to have the cruise control system inspected by a qualified mechanic to diagnose the root cause of the malfunction and ensure your vehicle remains in optimal condition. Taking prompt action not only enhances your driving comfort but also safeguards the overall health and performance of your Audi A3 Quattro.

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2016 Audi A3 Quattro Cruise Control Malfunctions Explained