2021 Tesla Model Y A/C Refrigerant and Oil Specifications

Quick Answer

• Refrigerant Type: R-1234yf
• Full System Charge: 24.7 oz (700g)
• PAG Oil Type: PAG 46
• PAG Oil Amount: 4.1 oz (120mL)
• Low-Side Service Port Location: Right side of the frunk, near the firewall
• High-Side Service Port Location: Right side of the frunk, near the firewall

Why R-1234yf Matters

The 2021 Tesla Model Y uses R-1234yf refrigerant, which has a lower global warming potential (GWP) than the R-134a used in older vehicles. This is in response to EPA regulations aimed at reducing the environmental impact of automotive air conditioning systems. While better for the environment, R-1234yf is more expensive and requires specialized equipment for service. You cannot use an R-134a recovery machine with an R-1234yf system, and vice versa. Using the wrong refrigerant or oil can cause damage to the A/C system.

Recharge Procedure

A proper A/C recharge on a 2021 Tesla Model Y requires a full evacuation of the system with a dedicated R-1234yf machine. This removes any air or moisture, which can cause poor performance and corrosion. The system is then recharged with the precise weight of refrigerant specified by the manufacturer—24.7 oz (700g). Do not attempt to charge the system based on pressure readings, as this can lead to an undercharge or overcharge, both of which can damage the compressor.

Common A/C Problems for this Vehicle

While the 2021 Tesla Model Y is a relatively new vehicle, some common A/C problems have been reported. These include:

• Compressor Failures: The A/C compressor is a common point of failure. Symptoms of a failing compressor include a lack of cold air, strange noises from the frunk, and a puddle of oil under the vehicle.
• Condenser Issues: The condenser is located at the front of the vehicle and is susceptible to damage from road debris. A damaged condenser will leak refrigerant and cause the A/C system to fail.
• Evaporator Leaks: The evaporator is located inside the cabin and is responsible for cooling the air. A leaking evaporator can be difficult to diagnose and may require a significant amount of labor to replace.

When to Call a Pro

Due to the complexity of the A/C system and the specialized equipment required for service, it is recommended that you take your 2021 Tesla Model Y to a qualified technician for any A/C repairs. An experienced technician will have the knowledge and tools to properly diagnose and repair the system, ensuring that it operates safely and efficiently.

Disclaimer: The information in this article is for informational purposes only. A/C system service should only be performed by a qualified technician with EPA 609 certification. Improper service can cause damage to the vehicle and personal injury.

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