2015 Audi RS7 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2015 Audi RS7

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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 2015 Audi RS7 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 2015 Audi RS7 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 steps should I take to diagnose the non-functioning cruise control in my 2015 Audi RS7?

To effectively diagnose the non-functioning cruise control in your 2015 Audi RS7, begin with the simplest checks to avoid unnecessary complications. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control buttons on your steering wheel for any signs of damage or sticking, as these can prevent the system from engaging. If these initial checks do not resolve the problem, proceed to verify the functionality of the speed sensors located on the wheels, since faulty sensors can disrupt the cruise control operation. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning correctly, as malfunctioning switches can disable the cruise control feature. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion that could be affecting performance. If these steps do not lead to a solution, it may be time to consult a professional mechanic or an authorized Audi service center for further assistance. By following this structured approach, you can systematically identify and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2015 Audi RS7?

When the cruise control in a 2015 Audi RS7 ceases to function, several common problems may be at play. One of the primary culprits is a faulty brake pedal switch, which can disrupt the system's ability to engage or disengage as intended. Additionally, issues with the speed sensor can lead to incorrect speed readings, further complicating the cruise control's operation. Another potential problem is a malfunctioning throttle actuator, which is crucial for maintaining the desired speed. Electrical problems, such as faulty wiring or blown fuses, can also interfere with the cruise control system's functionality. Lastly, vacuum leaks can significantly impact the system's ability to maintain speed consistently. By understanding these common issues, DIY enthusiasts can better diagnose and address the problems affecting their vehicle's cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2015 Audi RS7?

Addressing a malfunctioning cruise control in a 2015 Audi RS7 is of utmost urgency due to the significant safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can endanger both the driver and other road users. Moreover, the convenience and comfort that cruise control offers are compromised, detracting from the overall driving experience. Ignoring these symptoms not only jeopardizes safety but can also lead to more extensive damage to the vehicle's systems, resulting in expensive repairs down the line. Therefore, it is crucial for Audi RS7 owners to prioritize the diagnosis and repair of cruise control issues to ensure their vehicle remains safe and fully functional.

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