Audi S5 Sportback Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Audi S5 Sportback and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Audi S5 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 Audi S5 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.

Troubleshooting Cruise Control Issues in an Audi S5 Sportback

When troubleshooting cruise control issues in your Audi S5 Sportback, start by examining the most accessible components. Begin with the cruise control switch and ensure it is functioning correctly; a faulty switch can prevent the system from activating. Next, inspect the clutch sensor, as a malfunction here can also disrupt cruise control engagement. If these components check out, move on to the control module and throttle actuation system, as failures in these areas are common culprits for cruise control malfunctions. Additionally, consult your vehicle's manual for specific guidance on how the cruise control interacts with the vehicle's braking system, especially when driving downhill. By following this diagnostic approach, you can systematically identify and resolve the issue, restoring your cruise control functionality efficiently.

What Could Cause Cruise Control Issues in an Audi S5 Sportback?

When troubleshooting cruise control issues in your Audi S5 Sportback, it's important to consider several common problems that may be affecting the system's performance. A failed control module, sensor, or switch is often at the heart of these issues, as these components are crucial for the proper functioning of cruise control. Additionally, throttle actuation problems can prevent the system from engaging or maintaining speed, leading to frustrating driving experiences. In some cases, the issue may stem from a faulty clutch sensor, which has been noted in similar Audi models and could potentially impact the S5 Sportback as well. Furthermore, if your vehicle is equipped with a manual gearbox, problems related to the joystick or speed settings can also disrupt cruise control functionality. By systematically checking these components, you can effectively diagnose and resolve the underlying issues, ensuring that your cruise control operates smoothly once again.

Why is the Cruise Control Not Working in an Audi S5 Sportback?

When the cruise control in your Audi S5 Sportback fails, it’s crucial to understand the potential causes and the urgency of addressing them. Common issues include a malfunctioning control module, faulty sensors, or problems with the throttle actuation system. Additionally, a blown fuse, a defective brake pedal switch, or issues with the ABS can also disrupt cruise control functionality. Ignoring these symptoms can lead to safety risks, such as unexpected acceleration or loss of control, which could result in accidents. Moreover, neglecting these problems may lead to more significant damage to the vehicle, resulting in costly repairs. Therefore, if you notice your cruise control is not working, it’s advisable to conduct a thorough inspection of these components or consult a qualified mechanic to diagnose and resolve the issue promptly. Taking action early can help maintain your vehicle's performance and ensure your safety on the road.

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