2019 Audi TT Quattro Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2019 Audi TT Quattro

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Reviewed by
Bo Fader
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 TT 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 2019 Audi TT 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 initial steps to diagnose the cruise control issue in a 2019 Audi TT Quattro?

When diagnosing a cruise control issue in a 2019 Audi TT Quattro, it's crucial to follow a methodical diagnostic approach that emphasizes simpler checks before tackling more complex problems. Start by examining 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 operational, since faulty buttons can lead to malfunctions. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues within the onboard computer. Additionally, verifying the functionality of the vehicle's speed sensors is essential, as these components are integral to the cruise control system's operation. Finally, conduct a thorough inspection of the wiring and connections associated with the cruise control system, looking for any signs of damage or corrosion that could impede performance. By adhering to this structured approach, you can effectively identify and address the root cause of the cruise control problem in your Audi TT Quattro.

What are the common problems that could cause the cruise control to stop working in a 2019 Audi TT Quattro?

When troubleshooting the cruise control system in a 2019 Audi TT Quattro, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue 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, the brake light switch plays a crucial role; if it malfunctions, it may incorrectly signal the cruise control to deactivate when the brakes are applied. Another potential culprit is the throttle control system, where a defective throttle position sensor or actuator can disrupt the cruise control's functionality. Electrical problems, such as blown fuses or wiring issues, can also impede the system's operation, as can vacuum leaks in the engine, which are vital for maintaining the necessary pressure for cruise control to function effectively. By identifying and addressing these issues, you can restore the cruise control functionality in your Audi TT Quattro, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in a 2019 Audi TT Quattro?

When it comes to the non-functioning cruise control in a 2019 Audi TT Quattro, understanding the urgency of the situation is crucial for any DIY enthusiast. While a malfunctioning cruise control may not pose an immediate safety risk like failing brakes or steering, it can still indicate deeper issues within the vehicle's electronic systems. Ignoring this problem could lead to further complications, potentially affecting other critical components and resulting in costly repairs down the line. Additionally, a non-functioning cruise control can lead to increased driver fatigue on long trips and higher fuel consumption, making it an inconvenience that can impact your overall driving experience. Therefore, it is advisable to inspect and address the cruise control issue promptly, either through a DIY approach or by consulting a qualified mechanic, to ensure the vehicle remains safe and efficient on the road.

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