2019 Mercedes-Benz GLE63 AMG S AC Isn't Working

Common Causes of AC Malfunctions in Your 2019 Mercedes-Benz GLE63 AMG S and How to Fix Them

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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 2019 Mercedes-Benz GLE63 AMG S 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 steps to diagnose the AC issue in a 2019 Mercedes-Benz GLE63 AMG S?

When diagnosing an AC issue in a 2019 Mercedes-Benz GLE63 AMG S, start with the simplest checks to identify potential problems. Begin by inspecting the air filters; clean or replace them if they appear dirty, as this can significantly affect airflow and cooling efficiency. Next, verify the refrigerant levels in the system, as low refrigerant can lead to inadequate cooling. If the levels are low, it may indicate a leak that needs further investigation. Following this, examine the AC compressor for any visible signs of damage or wear, as a malfunctioning compressor can hinder the entire system's performance. Additionally, test the thermostat to ensure it is accurately regulating the temperature; a faulty thermostat can disrupt the cooling process. Lastly, conduct a thorough inspection of the AC system for any leaks, as these can lead to refrigerant loss and diminished cooling capabilities. By systematically addressing these areas, you can effectively diagnose and potentially resolve AC issues in your vehicle.

What are the common problems that could cause the AC system to stop working in a 2019 Mercedes-Benz GLE63 AMG S?

When tackling AC issues in a 2019 Mercedes-Benz GLE63 AMG S, it's crucial to understand the common problems that may arise. One of the primary culprits is refrigerant leaks, which can lead to insufficient cooling as the system loses its refrigerant charge. Additionally, a faulty compressor can prevent the AC from functioning altogether, making it essential to check this component if the system is unresponsive. Electrical issues, such as blown fuses or damaged wiring, can also disrupt the AC's operation, so inspecting these elements is vital. Another common problem is a clogged or blocked condenser, which hinders heat exchange and results in poor cooling performance. Furthermore, a malfunctioning blower motor can reduce or eliminate airflow from the vents, significantly impacting comfort. Lastly, damage to the evaporator coil can compromise the system's cooling capacity. For those looking to DIY, diagnosing these issues can save time and money, but it's important to approach repairs with caution and consider consulting a professional for complex problems.

How urgent is it to repair the non-functioning AC in a 2019 Mercedes-Benz GLE63 AMG S?

Addressing the non-functioning AC in your 2019 Mercedes-Benz GLE63 AMG S is not just a matter of comfort; it is a pressing concern that can significantly affect your driving experience and safety. Without a working AC, the cabin can quickly become uncomfortably hot, making long drives unbearable for you and your passengers. Moreover, the absence of air conditioning can lead to fogged windows, severely impairing visibility and increasing the risk of accidents. Beyond immediate comfort and safety, neglecting AC repairs can also impact the vehicle's resale value. A luxury vehicle like the GLE63 AMG S demands attention to detail, and potential buyers may be deterred by a malfunctioning AC system. Additionally, while the AC may not directly affect the vehicle's mechanical performance, ignoring the issue could lead to further complications, such as damage to the cooling system. Therefore, it is crucial to prioritize the repair of your AC system to ensure a safe, comfortable, and valuable driving experience.

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