2015 Land Rover Discovery Sport Ac Isn't Working

Common Causes of AC Malfunctions in Your 2015 Land Rover Discovery Sport and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2015 Land Rover Discovery Sport AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
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 AC issue in my 2015 Land Rover Discovery Sport?

To effectively diagnose the AC issue in your 2015 Land Rover Discovery Sport, start with the simplest checks before moving on to more complex diagnostics. Begin by ensuring that the AC is set to maximum cooling and that the recirculation button is off; if warm air continues to flow from the vents, this indicates a potential problem. Look for common symptoms such as unusual noises from the engine or compressor, which may suggest mechanical failures. Inspect the dashboard for any warning lights that could point to electrical issues. Additionally, check the condition of the serpentine belt, as a worn or misaligned belt can significantly impact AC performance. If these initial checks do not reveal the issue, consider that low refrigerant levels or leaks in the system may be at fault, particularly with known issues like evaporator leaks in this model. While DIY diagnostics can be helpful, remember that modern AC systems are complex, and professional assistance may be necessary for a thorough evaluation, especially if you suspect refrigerant leaks or electrical malfunctions.

What are the common problems that could cause the AC to stop working in a 2015 Land Rover Discovery Sport?

When troubleshooting the air conditioning system in a 2015 Land Rover Discovery Sport, it's essential to understand the common problems that could lead to AC failure. One prevalent issue is evaporator leaks, which can occur due to design flaws or coolant leaks that damage the cooling coil assembly over time. Additionally, refrigerant leaks are a significant concern, as they can result in the AC blowing warm air; without addressing the leak, simply adding refrigerant will not resolve the issue. Electrical problems can also hinder AC performance, particularly if there are intermittent failures in the blower motor caused by faulty connections or components like the blower resistor. Furthermore, component failures, such as clogged expansion valves or orifice tubes, can disrupt the system's functionality. If the blower motor itself fails, it will need replacement to restore AC operation. It's also crucial to ensure that any system recharges are performed correctly, as improper procedures can lead to further complications. Lastly, mechanical noises from the engine area may indicate issues with the compressor pulley or bearing, which can affect the serpentine belt and lead to more extensive engine problems. Understanding these common issues can help DIY enthusiasts effectively diagnose and address AC problems in their vehicle.

How urgent is it to repair the non-functioning air conditioning in a 2015 Land Rover Discovery Sport?

Addressing a non-functioning air conditioning system in your 2015 Land Rover Discovery Sport is not just a matter of comfort; it is a pressing concern that can significantly impact your safety and the vehicle's longevity. In hot weather, the absence of AC can lead to severe discomfort and health risks, such as heat exhaustion, which can impair your ability to drive safely. Moreover, a malfunctioning AC may indicate deeper issues, such as refrigerant leaks or compressor failures, which, if ignored, could escalate into more extensive and costly repairs. Timely intervention is crucial, especially if your vehicle is still under warranty, as delays could void coverage and leave you with hefty repair bills. By prioritizing the repair of your AC system, you not only enhance your driving experience but also safeguard your vehicle's overall health, ensuring it remains reliable for years to come.

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2015 Land Rover Discovery Sport AC Not Working | RepairPal