2019 Subaru Crosstrek: A/C Refrigerant & Oil Specifications

Quick Answer

• Refrigerant Type: R-1234yf
• Full System Charge: 16.8 oz (475g)
• PAG Oil Type: PAG 46
• PAG Oil Amount: 3.4 fl oz (100 ml)
• Low-Side Service Port Location: Near the firewall, on the passenger side of the engine bay.
• High-Side Service Port Location: In front of the radiator, near the hood latch.

Why R-1234yf Matters

The 2019 Subaru Crosstrek uses R-1234yf refrigerant, which is a newer, more environmentally friendly alternative to the older R-134a. While this is a positive change for the planet, it comes with a few important considerations for vehicle owners. R-1234yf is significantly more expensive than R-134a, and it requires special equipment for service and repair. This is due to its slightly flammable nature, which necessitates the use of a dedicated recovery machine that is designed to prevent sparks and ignition. Additionally, technicians must be properly trained and certified to handle this new refrigerant.

Recharge Procedure

A proper A/C recharge is not a simple top-off. To ensure optimal performance and prevent damage to your system, it's crucial to follow the correct procedure. The first step is to evacuate the system using a recovery machine. This removes all of the old refrigerant, oil, and any moisture or contaminants that may have entered the system. Once the system is evacuated, it must be held under a vacuum for at least 30 minutes to ensure there are no leaks. Finally, the system is recharged with the precise amount of refrigerant and oil as specified by the manufacturer. It is critical to charge the system by weight, not by pressure, as pressure readings can be misleading and can result in an undercharged or overcharged system, both of which will negatively impact performance and can cause damage to A/C components.

Common A/C Problems for This Vehicle

While the 2019 Subaru Crosstrek is a reliable vehicle, it is not without its potential A/C issues. Some of the most common problems we see in our shops include:

• Compressor Failures: The A/C compressor is the heart of the system, and it is also one of the most expensive components to replace. Compressor failures can be caused by a variety of factors, including low refrigerant levels, a lack of lubrication, or an internal mechanical failure.
• Condenser Issues: The condenser is located at the front of the vehicle, just behind the grille. This location makes it susceptible to damage from road debris. A punctured or clogged condenser will prevent the refrigerant from properly cooling, which will result in poor A/C performance.
• Evaporator Leaks: The evaporator is located inside the dashboard, and it is responsible for cooling the air that blows into the cabin. Evaporator leaks are often difficult to detect, as the leaking refrigerant is not visible. However, a common symptom of an evaporator leak is a sweet, musty smell coming from the vents.

When to Call a Pro

While some basic car maintenance tasks can be performed by a DIY enthusiast, A/C system repair is a job that is best left to the professionals. The equipment required to properly service an A/C system is expensive, and the refrigerants used are heavily regulated by the EPA. Additionally, misdiagnosing an A/C problem can lead to unnecessary and expensive repairs.

EPA 609 Certification: It is illegal to work on an A/C system without being EPA 609 certified. This certification ensures that technicians have the knowledge and training to safely handle refrigerants and prevent them from being released into the atmosphere.

Find a certified A/C shop on Repairius.