2019 Mercedes-Benz GLC63 AMG AC Isn't Working

Troubleshooting Common AC Issues in Your 2019 Mercedes-Benz GLC63 AMG and How to Restore Comfort

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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 2019 Mercedes-Benz GLC63 AMG 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 2019 Mercedes-Benz GLC63 AMG?

To effectively diagnose the AC issue in your 2019 Mercedes-Benz GLC63 AMG, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the air filters, as clean filters are essential for optimal airflow and cooling efficiency. Next, verify the refrigerant levels; low levels can significantly impair the system's performance. Following this, examine the AC compressor for any signs of damage, as a malfunctioning compressor can lead to inadequate cooling. It’s also crucial to test the thermostat to ensure it regulates temperature correctly. Look for any visible leaks in the system, as these can cause refrigerant loss and reduced cooling capacity. Additionally, inspect the electrical components, including fuses and wiring, to confirm they are functioning properly. If these initial checks do not resolve the issue, it may be time to consult a professional mechanic for a more thorough diagnosis. By following this structured diagnostic approach, you can efficiently identify and address AC issues, ensuring your vehicle maintains optimal cooling performance.

What are the common problems that could cause the AC system to stop working in a 2019 Mercedes-Benz GLC63 AMG?

When tackling AC issues in a 2019 Mercedes-Benz GLC63 AMG, it's crucial to understand the common problems that may arise. One of the primary culprits is low refrigerant levels, which can significantly impair cooling performance. If you notice that your AC isn't blowing cold air, checking the refrigerant levels should be your first step. Another potential issue is a faulty compressor; if the compressor isn't functioning correctly, it won't circulate refrigerant effectively, leading to inadequate cooling. Additionally, electrical problems, such as blown fuses or damaged wiring, can disrupt the AC system's operation, so inspecting these components is essential. Clogged or leaking refrigerant lines can also hinder performance, as blockages prevent proper refrigerant flow. Lastly, issues with the condenser or evaporator can impede the heat exchange process necessary for cooling. While some of these problems can be diagnosed and addressed through DIY methods, it's often advisable to consult a qualified technician for a thorough inspection and repair to ensure your AC system operates efficiently.

How urgent is it to repair the AC system in a 2019 Mercedes-Benz GLC63 AMG that isn't working?

When faced with a malfunctioning AC system in your 2019 Mercedes-Benz GLC63 AMG, the urgency of repair cannot be overstated. A reliable air conditioning system is essential for ensuring a comfortable driving environment, particularly during sweltering summer months or on extended journeys. The discomfort caused by excessive heat can detract from the overall driving experience, making it imperative to address the issue promptly. Moreover, safety is a critical concern; inadequate ventilation can lead to fogged windows, severely impairing visibility and increasing the risk of accidents. Additionally, neglecting a faulty AC can place undue stress on other vehicle components, potentially resulting in more severe mechanical issues and costly repairs down the line. Lastly, maintaining your vehicle's AC system is vital for preserving its resale value; a well-functioning AC is a key selling point for prospective buyers. Therefore, it is advisable to prioritize the repair of your AC system to ensure comfort, safety, and the longevity of your vehicle.

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