2017 Land Rover Discovery AC Isn't Working

Common Causes of AC Malfunctions in Your 2017 Land Rover Discovery and How to Resolve Them

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Reviewed by
Bo Fader
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 2017 Land Rover Discovery 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 are the initial diagnostic steps to take when the AC isn't working in a 2017 Land Rover Discovery?

When faced with an AC malfunction in your 2017 Land Rover Discovery, it's crucial to adopt a systematic diagnostic approach. Start by checking the thermostat settings to ensure they are correctly adjusted; sometimes, a simple change can restore functionality. Next, inspect the air filters, as dirty or clogged filters can significantly hinder airflow and cooling efficiency. If the issue persists, examine the refrigerant levels using a pressure gauge; low levels often result in warm air blowing from the vents, and recharging the system may be necessary. Additionally, look for any visible signs of leaks, such as oily residue around hoses or connections, which can indicate refrigerant loss. Testing the compressor is also vital; it should engage when the AC is activated, and if it doesn't, repairs or replacement may be required. Lastly, check the electrical connections related to the AC system for security and corrosion, as faulty connections can disrupt operation. By following these steps, you can effectively diagnose and address common AC issues in your vehicle, potentially saving time and money on repairs.

What are the common problems that could cause the AC to stop working in a 2017 Land Rover Discovery?

When the air conditioning system in a 2017 Land Rover Discovery fails to operate, several common problems may be at play. One of the first things to check is the refrigerant levels; low refrigerant can significantly hinder the system's ability to cool the air effectively. If the refrigerant is adequate, the next step is to inspect the compressor, as a faulty compressor can prevent cold air from being produced. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's functionality, so examining these components is crucial. Another potential issue is a clogged or leaking condenser, which can severely impact the system's cooling efficiency. Lastly, ensure that the cooling fans are operational, as broken fans can impede the system's ability to dissipate heat. By systematically checking these common problems, DIYers can often identify the root cause of the AC failure and determine whether a simple fix is possible or if professional assistance is needed.

How urgent is it to address the non-functioning AC in a 2017 Land Rover Discovery?

When faced with a non-functioning AC in your 2017 Land Rover Discovery, it is crucial to recognize the urgency of the situation. Driving without air conditioning in hot weather can lead to significant discomfort and health risks, particularly during long trips or in extreme heat. Moreover, a malfunctioning AC can detract from the overall driving experience, making it less enjoyable and potentially distracting, which can compromise safety on the road. Additionally, the AC system may be indicative of larger issues within the vehicle's cooling system; if left unaddressed, this could result in overheating and severe engine damage. By prioritizing the repair of your AC, you not only enhance your comfort and safety but also mitigate the risk of incurring higher repair costs in the future. Therefore, it is advisable to act promptly to ensure a reliable and enjoyable driving experience in your Land Rover.

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