2020 Audi Q5 PHEV AC Isn't Working

Common Causes of AC Malfunctions in Your 2020 Audi Q5 PHEV and How to Resolve Them

Find Repair Location
Reviewed by
Andrew Hajjar
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 2020 Audi Q5 PHEV 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 2020 Audi Q5 PHEV?

When faced with an AC malfunction in your 2020 Audi Q5 PHEV, start by checking the thermostat settings to ensure they are correctly adjusted to your desired temperature. Often, simple misconfigurations can lead to perceived AC issues. Next, inspect the air filters; dirty or clogged filters can significantly restrict airflow, leading to inadequate cooling. If the filters are dirty, replacing them can restore proper function. Additionally, examine the refrigerant levels, as low refrigerant can result in warm air blowing from the vents. If you suspect low levels, it’s advisable to have a professional assess and recharge the system if necessary. Look for any visible signs of leaks, such as oily residue around hoses and connections, as these can indicate refrigerant loss. Testing the compressor is also crucial; it should engage when the AC is activated. If it doesn’t, further investigation or replacement may be required. Lastly, check the electrical connections related to the AC system for any signs of corrosion or looseness, as faulty connections can hinder operation. By systematically addressing these areas, you can effectively diagnose and potentially resolve common AC issues in your vehicle before escalating to professional assistance.

What are the common problems that could cause the AC system to stop working in a 2020 Audi Q5 PHEV?

When the AC system in your 2020 Audi Q5 PHEV ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is low refrigerant levels, which can significantly impair cooling performance. If you notice that the air is not as cold as it should be, checking the refrigerant levels is a good first step. Additionally, electrical issues, such as a faulty compressor clutch or damaged wiring, can disrupt the operation of the AC system. Inspecting the electrical components for any visible damage or loose connections may reveal the source of the problem. Another common issue is compressor failure; if the compressor is not circulating refrigerant properly, the AC will not cool effectively. Furthermore, clogged or leaking refrigerant lines can hinder the flow of refrigerant, leading to inadequate cooling. Lastly, a faulty thermostat can prevent the system from regulating temperature correctly, causing further complications. By being aware of these potential issues, you can take proactive steps to troubleshoot and address the AC system problems in your Audi Q5 PHEV.

How urgent is it to address the non-functioning AC in a 2020 Audi Q5 PHEV?

Addressing a non-functioning AC in your 2020 Audi Q5 PHEV is crucial for both comfort and safety, particularly during hot weather when the vehicle's interior can quickly become unbearable. Beyond mere discomfort, a malfunctioning AC may indicate deeper issues within the vehicle's cooling system, which, if left unattended, could lead to more significant damage and costly repairs. Timely intervention not only restores your vehicle's climate control but also helps maintain its overall performance and efficiency, ensuring a pleasant driving experience. Therefore, it is essential to prioritize the repair of your AC system to avoid inconveniences and potential safety hazards while on the road.

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.