2019 Audi RS5 Sportback Radiator Fan Isn't Working

Fixing the Non-Functioning Radiator Fan in a 2019 Audi RS5 Sportback

Find Repair Location
Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
34% chance it's the
Fan Motor or Clutch
0%
28% chance it's the
Fan Relay or Fuse
0%
23% chance it's the
Temp Sensor or Fan Control Module
0%
15% chance it's
Something else
The most common reasons a 2019 Audi RS5 Sportback radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor.
  • Fan Motor or Clutch: A faulty fan motor or a malfunctioning fan clutch can result in inadequate cooling, causing the engine to overheat.
  • Fan Relay or Fuse: A faulty fan relay or blown fuse can prevent the cooling fan from operating, leading to engine overheating.
  • Temp Sensor or Fan Control Module: A faulty temperature sensor or fan control module can result in incorrect readings, causing the engine to overheat or the cooling fan to operate improperly.
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.

What steps should I take to diagnose the non-functioning radiator fan in my 2019 Audi RS5 Sportback?

When diagnosing a non-functioning radiator fan in your 2019 Audi RS5 Sportback, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the fuse associated with the radiator fan, as a blown fuse is a common and easily fixable issue. If the fuse is intact, inspect the relay, which controls the power supply to the fan; a malfunctioning relay may need replacement. Next, test the fan motor directly by applying power to it; if it fails to operate, the motor itself may require replacement. Additionally, verify the functionality of the temperature sensor, as it is responsible for activating the fan when the engine reaches a specific temperature. Don't overlook potential wiring issues; examine the connections for any signs of damage or looseness that could disrupt the fan's operation. Finally, using a diagnostic tool to scan for error codes can provide valuable insights into any underlying problems within the cooling system. By following this structured diagnostic approach, you can effectively identify and resolve the issue with your radiator fan.

What are the common problems that could cause the radiator fan to stop working in a 2019 Audi RS5 Sportback?

When diagnosing why the radiator fan in a 2019 Audi RS5 Sportback has stopped working, it's crucial to consider several common problems that could be at play. A faulty fan motor is often the primary suspect, as it can fail to spin, leading to overheating. Additionally, a blown fuse in the fan circuit can interrupt the power supply, effectively shutting down the fan. Another potential issue is a defective temperature sensor, which may fail to signal the fan to activate when the engine reaches a certain temperature, resulting in inadequate cooling. It's also important to check the fan belt; if it is worn or broken, it can prevent the fan from operating correctly. Lastly, a coolant leak can lead to low coolant levels, which not only causes overheating but may also affect the fan's functionality. Addressing these issues promptly is essential to maintain optimal engine performance and prevent further damage. Regular inspections and maintenance can help identify these problems early, allowing for effective DIY repairs.

How urgent is it to address a malfunctioning radiator fan in a 2019 Audi RS5 Sportback?

When it comes to the radiator fan in your 2019 Audi RS5 Sportback, urgency is key. A malfunctioning fan can severely compromise your engine's cooling system, leading to inadequate temperature regulation. This inadequacy can quickly escalate into overheating, which poses a significant risk to your engine's integrity. Overheating can cause extensive damage to vital components, resulting in costly repairs that could have been avoided with timely intervention. In extreme scenarios, prolonged overheating may even lead to engine seizure, leaving you stranded and facing a complete vehicle breakdown. Therefore, if you notice any signs of a malfunctioning radiator fan, such as unusual noises or erratic temperature readings, it is crucial to address the issue immediately. Taking swift action not only protects your engine but also ensures the continued performance and reliability of your Audi RS5 Sportback.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.