2023 Land Rover Discovery Sport Radiator Fan Isn't Working

Fixing the Non-Functional Radiator Fan in 2023 Land Rover Discovery Sport

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Reviewed by
Aisha
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 2023 Land Rover Discovery Sport 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.

How much does it cost to fix a 2023 Land Rover Discovery Sport radiator fan 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.

Over time serpentine belts stretch, crack, and the ribs that ride on the accessory pulleys being to wear smooth. A squealing noise that increases with engine speed or as engine driven accessories are turned on may be noted. The noise is caused by the belt slipping on the pulleys, insufficiently driving them. Ineffective air conditioning, a battery warning light, or intermittent power steering assist can result from this.

»MORE: Symptoms of a bad serpentine belt

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should subside once the vehicle begins moving again.

Additionally, the air conditioner typically won't blow as cold. This is because the air from the radiator fans also blows across the air conditioning condenser, so when the fans fail, both systems suffer.

You'll also usually see the check engine light and notice a drop in fuel economy. It's possible the fan will start making noise if it's failing, as well.

What are the initial diagnostic steps to take when the radiator fan isn't working on a 2023 Land Rover Discovery Sport?

When faced with a non-functioning radiator fan in your 2023 Land Rover Discovery Sport, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the radiator fan; a blown fuse is a common and easily fixable issue that can prevent the fan from operating. If the fuse is intact, the next step is to inspect the relay that controls the fan, as a faulty relay can disrupt the electrical flow necessary for the fan to function. Following this, test the radiator fan motor itself to determine if it is operational; if the motor is defective, it will need replacement. Additionally, verify the functionality of the temperature sensor, as a malfunctioning sensor may fail to signal the fan to activate when the engine reaches a certain temperature. It's also crucial to examine the wiring connections for any signs of damage or corrosion, as poor connections can hinder performance. Finally, if the issue persists, consider using a diagnostic tool to scan for any trouble codes that could provide further insight into the problem. By methodically working through these steps, you can effectively diagnose and address the radiator fan issue, ensuring your vehicle remains in optimal condition.

What are the common causes for the radiator fan not working in a 2023 Land Rover Discovery Sport?

When diagnosing why the radiator fan in your 2023 Land Rover Discovery Sport isn't functioning, it's crucial to consider several common issues that could be at play. Start by inspecting the fan motor itself, as a faulty motor can prevent the fan from operating altogether. Next, check the fuse associated with the fan circuit; a blown fuse can easily disrupt power and halt fan activity. Additionally, the temperature sensor plays a vital role in signaling the fan to engage when the engine reaches a certain temperature, so ensure that this component is functioning correctly. Wiring issues can also be a culprit, as damaged or corroded connections may impede electrical flow to the fan. Lastly, don't overlook the coolant level; low coolant can lead to overheating, which might cause the fan to fail in its cooling duties. By systematically examining these areas, you can effectively troubleshoot and resolve the radiator fan issue, ensuring your vehicle remains in optimal working condition.

How urgent is it to address the non-functioning radiator fan in a 2023 Land Rover Discovery Sport?

When it comes to the non-functioning radiator fan in your 2023 Land Rover Discovery Sport, urgency cannot be overstated. A malfunctioning fan can lead to severe engine overheating, which poses a significant risk to your vehicle's health. Overheating can warp engine components and lead to costly repairs or even complete engine failure, making it imperative to act quickly. Ignoring this issue not only jeopardizes your vehicle's performance but also increases the likelihood of a breakdown, which can leave you stranded and facing unexpected expenses. For those considering a DIY approach, it is crucial to recognize that while some repairs may be manageable, the radiator fan's role in the cooling system is vital. Therefore, if you're not confident in your ability to diagnose or fix the problem, seeking professional assistance is highly recommended. Addressing the radiator fan issue promptly will help maintain your vehicle's efficiency and longevity, ensuring a safer driving experience.

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