2010 Audi S5 Cruise Control Isn't Working

Diagnosing Common Issues with Cruise Control in Your 2010 Audi S5 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2010 Audi S5 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 2010 Audi S5 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 diagnostic steps to troubleshoot the non-functional cruise control in a 2010 Audi S5?

When troubleshooting the non-functional cruise control in a 2010 Audi S5, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, verify the functionality of the cruise control switch; a malfunctioning switch may prevent the system from engaging. Following this, examine the speed sensors, as they play a crucial role in the cruise control's performance; any issues here could lead to malfunctions. Utilizing a diagnostic scanner to check for error codes can provide further insights into potential problems, guiding your next steps. Lastly, inspect the wiring connections associated with the cruise control system for any signs of damage or loose connections, as faulty wiring can significantly impact functionality. By methodically addressing these areas, you can effectively diagnose and potentially resolve the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2010 Audi S5?

When troubleshooting the cruise control system in a 2010 Audi S5, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to erratic behavior or complete failure. Vacuum leaks are another concern, as they can interfere with the cruise control's capacity to hold speed consistently. Furthermore, a defective cruise control module may also be responsible for the system's inability to function properly. Lastly, electrical problems, including blown fuses or wiring issues, can significantly impact the cruise control's performance. By identifying and addressing these common issues, DIY enthusiasts can effectively diagnose and resolve cruise control problems in their Audi S5.

How urgent is it to address the malfunctioning cruise control in a 2010 Audi S5?

When it comes to a malfunctioning cruise control system in a 2010 Audi S5, the urgency of addressing the problem cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses a significant safety risk not only to the driver but also to other road users. Ignoring these symptoms may result in dangerous driving situations, increasing the likelihood of accidents. Furthermore, delaying repairs can exacerbate the issue, leading to additional wear on the vehicle's components and potentially resulting in more extensive and costly repairs down the line. For those considering a DIY approach, it is crucial to recognize that while some troubleshooting may be feasible, the complexity of modern vehicle systems often necessitates professional inspection and repair to ensure the cruise control functions correctly and safely. Therefore, addressing the malfunction promptly is essential for maintaining both safety and the integrity of your vehicle.

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