2017 Tesla Model S A/C Refrigerant & Oil Capacity

Quick Answer

• Refrigerant Type: R-134a (though some newer vehicles use R-1234yf, the 2017 Model S uses R-134a)
• Full System Charge: 500 grams (17.6 ounces) ± 15 grams (0.5 ounces)
• PAG Oil Type: Varies by compressor manufacturer, typically PAG 46 or PAG 100. Always check service manual or compressor label. Total oil charge is not provided as a standalone figure for the entire system, as it's integral to compressor replacement, however the typical amount added with a new compressor is around 130-150ml.
• Low-Side Service Port Location: On the refrigerant line near the firewall, usually on the passenger side.
• High-Side Service Port Location: On the refrigerant line, also near the firewall, typically closer to the center or driver's side.

The Tesla Model S, a pioneer in electric vehicle technology, also has a sophisticated climate control system. Understanding its A/C refrigerant and oil specifications is crucial for proper maintenance and repair. While many newer vehicles, especially those designed after 2017, have transitioned to the more environmentally friendly R-1234yf refrigerant, your 2017 Tesla Model S utilizes the widely adopted R-134a.

Why R-1234yf Matters (and why R-134a is still relevant for your Model S)

The automotive industry began a significant transition around 2014 from R-134a to R-1234yf refrigerant, primarily due to environmental concerns. R-1234yf has a much lower Global Warming Potential (GWP) compared to R-134a, making it a more eco-friendly choice. This transition, mandated in many regions, means that newer vehicles often use R-1234yf. However, as noted, your 2017 Model S from Tesla still uses R-134a. This is important to remember, as mixing refrigerants can cause severe damage to the A/C system and recovery equipment. R-1234yf is also significantly more expensive and requires specialized recovery and recharge equipment.

Recharge Procedure for Your Tesla Model S

Servicing an A/C system is not as simple as "topping off" the refrigerant. For your 2017 Tesla Model S, like any modern vehicle, a precise approach is critical. The most important steps include:

1. Evacuation: Before adding any new refrigerant, the system must be thoroughly evacuated using a vacuum pump. This process removes all air and moisture, which can cause corrosion and system inefficiency.
2. Proper Charge by Weight: The correct refrigerant charge for your Model S is 500 grams (17.6 ounces) ± 15 grams (0.5 ounces). Always charge by weight using an accurate refrigerant charging station, not by pressure readings alone. Pressure gauges can be misleading due to ambient temperature variations and do not account for the amount of refrigerant already in the system. An undercharged or overcharged system can lead to poor cooling performance, increased wear on components, and potential system damage.
3. PAG Oil Consideration: When replacing A/C components like the compressor, it