2016 Mercedes-Benz E350 AC Isn't Working

Common Causes of AC Failure in Your 2016 Mercedes-Benz E350 and How to Resolve Them

Find Repair Location
Reviewed by
Aisha
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 E350 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 2016 Mercedes-Benz E350?

When diagnosing the AC issue in a 2016 Mercedes-Benz E350, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex assessments. Start by checking the air filters, as dirty or clogged filters can significantly restrict airflow, leading to diminished AC performance. Next, inspect the refrigerant levels; low levels may indicate a leak, which is crucial to address for optimal cooling. Following this, examine the AC compressor, as a malfunctioning compressor can result in inadequate or nonexistent cooling. Additionally, testing the thermostat is vital, as a faulty thermostat can disrupt the entire AC system's functionality. Lastly, conduct a thorough inspection for any visible leaks within the AC system, as these can severely impact performance. By following these steps, you can effectively diagnose the AC issue and determine the necessary repairs to restore comfort in your vehicle.

What are the common problems that could cause the AC system to stop working in a 2016 Mercedes-Benz E350?

When troubleshooting the AC system in a 2016 Mercedes-Benz E350, it's essential to understand the common problems that could lead to its failure. One prevalent issue is refrigerant leaks, which can significantly diminish cooling efficiency or even cause the system to stop working altogether. Another critical component to check is the compressor; if it malfunctions, the refrigerant cannot circulate properly, resulting in inadequate cooling. Additionally, electrical problems such as blown fuses or faulty wiring can disrupt the AC's functionality, making it crucial to inspect these components. A clogged or blocked condenser can also hinder the heat exchange process, leading to poor cooling performance. Lastly, if the blower motor is faulty, it may not circulate air effectively, which can further indicate underlying issues with the AC system. By identifying and addressing these common problems, you can take the necessary steps to restore your vehicle's air conditioning system efficiently.

How urgent is it to address the AC failure in my 2016 Mercedes-Benz E350?

Addressing an AC failure in your 2016 Mercedes-Benz E350 is crucial for several reasons. First and foremost, a functioning air conditioning system is essential for maintaining a comfortable driving environment, especially during hot weather or long trips. Without it, you and your passengers may experience discomfort, which can detract from the overall driving experience. Additionally, a malfunctioning AC can lead to visibility issues due to fogging or condensation on the windows, posing a significant safety risk while driving. Ignoring these symptoms can also result in more extensive damage to the AC system, leading to higher repair costs down the line. Therefore, it is advisable to seek a professional inspection to accurately diagnose the issue and determine the necessary repairs. By addressing the AC failure promptly, you can ensure a safe and comfortable ride while preventing further complications.

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.