2014 Mercedes-Benz E63 AMG AC Isn't Working

Troubleshooting Common AC Issues in Your 2014 Mercedes-Benz E63 AMG and How to Restore Comfort

Find Repair Location
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 2014 Mercedes-Benz E63 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 are the initial steps to diagnose the AC issue in a 2014 Mercedes-Benz E63 AMG?

To effectively diagnose the AC issue in your 2014 Mercedes-Benz E63 AMG, begin by gathering essential tools, particularly a Recharge Kit equipped with a gauge. This kit will allow you to assess the refrigerant levels and pressure within the system. Start your diagnosis by connecting the gauge and observing the readings; low refrigerant levels may indicate a leak that requires attention. Next, inspect the climate control electrical components, as any malfunction here can disrupt the AC's performance. If the electrical systems appear functional, turn your focus to the AC compressor, ensuring it operates correctly, as a faulty compressor can significantly impact cooling efficiency. By following this structured approach, you can systematically identify and address the root causes of your vehicle's AC issues, making the process manageable and effective for a DIY repair.

What are the common problems that could cause the AC system to fail in a 2014 Mercedes-Benz E63 AMG?

When dealing with the AC system in a 2014 Mercedes-Benz E63 AMG, it's essential to be aware of several common problems that can lead to system failure. One prevalent issue is refrigerant leaks, which can significantly diminish the system's ability to produce cool air. If you notice a lack of cooling, checking for leaks should be your first step. Another critical component to inspect is the compressor; if it is faulty, the refrigerant won't circulate properly, resulting in inadequate cooling. Additionally, electrical problems, such as faulty wiring or malfunctioning sensors, can prevent the AC system from operating altogether. Clogged expansion valves can also hinder refrigerant flow, leading to poor cooling performance, while a malfunctioning blower motor may restrict air distribution, even if the system is producing cold air. By understanding these common issues, DIYers can effectively diagnose and address problems with their AC system, ensuring optimal performance and comfort in their vehicle.

How urgent is it to address the non-functioning AC in a 2014 Mercedes-Benz E63 AMG?

When your 2014 Mercedes-Benz E63 AMG's air conditioning system fails, the urgency to address the issue cannot be overstated. A malfunctioning AC not only compromises your comfort during hot weather but can also pose serious health risks, leading to fatigue and discomfort for both the driver and passengers. Moreover, neglecting this problem can result in further damage to the AC system, which may escalate repair costs significantly. Additionally, maintaining a fully operational AC is essential for preserving the vehicle's resale value, as potential buyers often scrutinize the condition of all components. Therefore, it is crucial to prioritize the repair of your AC system to ensure a safe, comfortable driving experience and to protect your investment in the long run.

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.