2017 Nissan Altima: A/C Refrigerant and Oil Guide

Quick answer: 2017 Nissan Altima A/C Specifications

• Refrigerant Type: R-1234yf
• Refrigerant Charge: 18 oz (510g)
• PAG Oil Type: PAG 46
• PAG Oil Capacity (Full System): 4.1 oz (120 mL)
• Low-Side Service Port Location: Near the passenger-side firewall
• High-Side Service Port Location: Behind the passenger-side headlight, near the condenser

Why R-1234yf matters

Starting in the mid-2010s, automakers began transitioning from R-134a to the more environmentally friendly R-1234yf refrigerant. Your 2017 Nissan Altima uses R-1234yf, which has a much lower global warming potential (GWP) than its predecessor. However, this change comes with a few important considerations:

• Cost: R-1234yf is significantly more expensive than R-134a.
• Specialized Equipment: Servicing R-1234yf systems requires a dedicated recovery and charging machine. Cross-contamination with R-134a can damage your A/C system and the service equipment.
• EPA Regulations: While you can still purchase R-1234yf cans for DIY top-offs, the EPA requires that anyone who services A/C systems for payment be Section 609 certified.

Recharge procedure

A proper A/C service is more than just "topping off" the refrigerant. To ensure optimal performance and longevity, the system should be serviced by weight, not just pressure. Here's a high-level overview of the correct procedure:

1. Recover: Any existing refrigerant must be recovered from the system using a dedicated R-1234yf machine.
2. Evacuate: The system is then placed under a deep vacuum for at least 30-45 minutes to remove any air and moisture. This is a critical step, as moisture can lead to corrosion and poor performance.
3. Charge: The exact amount of refrigerant (18 oz / 510g for your Altima) is weighed and charged back into the system.

Common A/C problems for this vehicle

While generally reliable, the A/C systems in this generation of Altima can experience a few common issues:

• Compressor Failures: The variable displacement compressors used in these vehicles can be prone to failure. Symptoms often include a grinding noise or a complete loss of cooling.
• Condenser Damage: Located at the front of the vehicle, the condenser is susceptible to damage from road debris. A punctured or clogged condenser will prevent the system from cooling effectively.
• Evaporator Leaks: The evaporator core, located deep within the dashboard, can develop small leaks over time. This is often a labor-intensive repair.

When to call a pro

While a DIY-er with the right tools can legally top off an A/C system, any other service, including a full recharge or component replacement, should be left to a qualified technician. The specialized equipment and training required for R-1234yf systems make professional service the safest and most effective option.

Disclaimer: The information on this page is for reference only. Always consult your owner's manual or a certified technician before servicing your A/C system. The EPA requires Section 609 certification for anyone who repairs or services motor vehicle air conditioning for consideration (payment or barter).

Find a certified A/C shop on Repairius.