2016 Mercedes-Benz GL450 AC Isn't Working

Common Causes of AC Malfunctions in Your 2016 Mercedes-Benz GL450 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 2016 Mercedes-Benz GL450 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 short circuit in the wiring can disrupt the electrical signals needed for proper operation of 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.

How urgent is it to repair the non-functioning AC in a 2016 Mercedes-Benz GL450?

Addressing the non-functioning AC in your 2016 Mercedes-Benz GL450 should be treated as a priority due to the immediate and long-term implications of neglecting this issue. A malfunctioning AC system not only detracts from your driving comfort, especially during sweltering summer months, but it can also compromise the air quality within the vehicle, potentially leading to health concerns for you and your passengers. Furthermore, maintaining a fully operational AC system is crucial for preserving the resale value of your vehicle; prospective buyers often view a well-functioning AC as a sign of overall vehicle maintenance. Additionally, delaying repairs can exacerbate the problem, leading to more complex and costly issues down the line. Therefore, it is advisable to address any AC problems promptly to ensure a safe, comfortable, and healthy driving experience while safeguarding your investment.

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