2020 International MV: A/C Refrigerant & Oil Guide

Quick Answer: 2020 International MV A/C Specifications

• Refrigerant Type: R-134a
• System Charge: 56 oz (1588g)
• PAG Oil Type: PAG 46
• PAG Oil Capacity: 8.5 oz (251 mL)
• Service Port Location: Low-side port near the driver's side firewall; high-side port on the liquid line near the condenser.

Why R-1234yf Matters

The 2020 International MV uses R-134a refrigerant, but it's important to understand the newer R-1234yf standard. R-1234yf has a much lower Global Warming Potential (GWP) than R-134a, making it better for the environment. This has led to a gradual industry-wide transition to R-1234yf, with many newer vehicles using it exclusively. Be aware that R-1234yf systems require special, more expensive equipment for service, and the refrigerant itself is more costly.

A/C Recharge Procedure

Recharging the A/C system on your International MV is not just a matter of adding refrigerant. For a lasting repair, it's crucial to follow the correct procedure:

1. Evacuate the System: Before charging, the system must be evacuated using a recovery machine to remove all old refrigerant, air, and moisture.
2. Vacuum and Check for Leaks: A deep vacuum is then applied to the system and held to check for any leaks. This is a critical step to ensure the integrity of the system.
3. Charge by Weight: The system must be charged with the precise weight of refrigerant specified by the manufacturer. Do not use pressure gauges to determine the charge, as this can be inaccurate.
4. Add PAG Oil: If components were replaced, or if a significant amount of oil was lost, you must add the correct type and amount of PAG oil.

Common A/C Problems for This Vehicle

• Compressor Failures: The A/C compressor is the heart of the system, and it's not uncommon for it to fail, especially in high-mileage vehicles. Signs of a failing compressor include a noisy clutch, or a lack of cooling.
• Condenser Issues: The condenser, located at the front of the vehicle, is susceptible to damage from road debris, which can cause leaks.
• Evaporator Leaks: A musty smell from the vents or water on the passenger side floor can indicate a leaking evaporator core.

When to Call a Pro

While some A/C maintenance tasks can be performed by a skilled DIYer, it's often best to leave A/C repairs to a professional. A certified technician will have the specialized equipment and knowledge to diagnose and repair your A/C system correctly and safely.

Disclaimer: Handling refrigerants requires EPA 609 certification. Improper handling can be harmful to you and the environment.

Find a certified A/C shop on Repairius.