If your Subaru Crosstrek’s air conditioner isn’t cooling well, you might be wondering what type of refrigerant it needs. It’s an important question because using the wrong refrigerant can harm your car’s A/C system.
Most Subaru Crosstrek models use R-134a refrigerant, while newer ones (around 2018 and later) use R-1234yf. Always check the under-hood A/C label to confirm the correct refrigerant type before refilling.
In this guide, you’ll learn exactly what kind of refrigerant the Subaru Crosstrek uses, how to check it, and some tips for keeping your air conditioning system in good shape.
Why Knowing the Refrigerant Type Matters
The refrigerant is what keeps your car’s air conditioning cold. It moves through the A/C system, absorbing heat from inside the cabin and releasing it outside.
When the refrigerant level is low or if you use the wrong type, several problems can happen:
- The A/C may blow warm air.
- The compressor might get damaged.
- You could waste money on repairs or replacements.
Modern cars use different refrigerants depending on their design and environmental standards. Older vehicles often used R-134a, while many newer ones now use R-1234yf, which is more eco-friendly.
That’s why it’s important to know which one your Subaru Crosstrek uses before recharging or topping it up.
Subaru Crosstrek Refrigerant Overview
Different Crosstrek model years use different refrigerants. Here’s a general idea:
| Model Year Range | Refrigerant Type | Approx. Capacity | Notes |
| 2012–2020 | R-134a | ~475 g / 1.05 lb | Common in earlier models |
| 2018–Present | R-1234yf | ~450 g / 0.99 lb | Found in newer trims |
| All years | — | — | Always check the A/C label under the hood |
If your Crosstrek is from the early 2010s, it most likely uses R-134a. If it’s a newer model (from around 2018 or later), there’s a good chance it uses R-1234yf.
The best way to know for sure is to look under the hood — more on that next.
How to Check Which Refrigerant Your Crosstrek Uses
It’s very simple to find out which refrigerant your car takes. You don’t need special tools. Just follow these steps:
- Open the hood of your Subaru Crosstrek.
- Look for the A/C information label — it’s usually on or near the radiator support, or sometimes on the underside of the hood.
- The label will clearly say R-134a or R-1234yf along with the amount needed (for example, “450g”).
- If you can’t find the label, check the owner’s manual. It will list the refrigerant type in the A/C or specifications section.
⚠️ Tip: Always use the exact refrigerant listed. Mixing different types can cause serious damage to the A/C system.
The Difference Between R-134a and R-1234yf
Both refrigerants do the same job — cooling your car — but they’re not the same in how they work and how they affect the environment.
R-134a
- Used in most older cars and Crosstrek models up to around 2020.
- Easy to find and cheaper to refill.
- Has a higher environmental impact compared to newer types.
R-1234yf
- Used in most newer Crosstrek models.
- More eco-friendly and meets modern standards.
- Slightly more expensive and requires special A/C service equipment.
These two refrigerants cannot be mixed or interchanged. Their systems are built differently — even the service ports are different shapes to prevent mistakes.
Can You Switch Between R-134a and R-1234yf?
Some car owners think they can replace R-1234yf with R-134a to save money, but this is not recommended.
Here’s why:
- The two refrigerants have different pressure levels and different types of oil inside the compressor.
- Mixing or switching can damage seals and hoses, or even break the A/C compressor.
- It’s illegal in many areas to retrofit or refill with the wrong refrigerant type without proper conversion kits and certifications.
If you really need to change the type, only a certified A/C technician should do it — and it usually involves replacing several components, which can be costly.
How to Safely Recharge Your Crosstrek A/C
If you notice your Crosstrek’s air conditioner blowing warmer than usual, it might be low on refrigerant. Here’s a simple guide to recharging it correctly.
What You’ll Need
- Refrigerant can (R-134a or R-1234yf — whichever matches your car)
- Pressure gauge and hose kit
- Gloves and safety glasses
- A shaded or cool place to work
Steps to Recharge
- Start the engine and turn the A/C to the coldest setting.
- Attach the hose to the low-pressure service port (usually has a blue or black cap).
- Read the gauge. If it’s low, begin adding refrigerant slowly.
- Shake the can and release refrigerant in short bursts.
- Watch the gauge — stop when it reaches the recommended pressure (usually between 25–45 PSI for R-134a).
- Disconnect the hose and replace the cap.
⚠️ Safety Reminder: Never overfill the system. Too much refrigerant can reduce cooling performance and damage the compressor.
Signs That Your Crosstrek Might Be Low on Refrigerant
You don’t need to be a mechanic to notice when your A/C needs attention. Watch for these common signs:
- Warm or weak air coming from vents even when the A/C is on full.
- Hissing or bubbling sound from the A/C lines.
- Compressor cycles on and off more often than usual.
- Foggy windows or musty smell when A/C is on.
If you notice these, check for refrigerant leaks before recharging. You can buy a simple UV leak detection kit, or have a mechanic inspect it.
Extra Tips to Keep Your A/C System Healthy
- Run your A/C regularly – even in winter, to keep seals lubricated.
- Clean the cabin air filter every few months. A dirty filter makes the system work harder.
- Check for leaks – oily or wet spots on A/C lines can signal refrigerant loss.
- Avoid overcharging – more refrigerant doesn’t mean better cooling.
- Get professional service once a year to ensure the system is running efficiently.
These small steps will help keep your Crosstrek’s air conditioning system reliable and cool during hot days.
Understanding Why Newer Cars Use R-1234yf
Car makers are moving toward R-1234yf because it’s better for the environment. It produces much less greenhouse gas compared to R-134a.
Even though it costs more, it’s part of a bigger shift toward cleaner and safer automotive systems. Over time, more vehicles will use this refrigerant, and it’s expected to become the standard for new models.
What type of refrigerant for a Subaru Crosstrek 2021
The 2021 Subaru Crosstrek uses R-1234yf refrigerant. This newer type is more eco-friendly and designed for modern A/C systems. Always check the label under the hood before refilling to avoid using the wrong refrigerant.
What type of refrigerant for a Subaru Crosstrek 2016
The 2016 Subaru Crosstrek uses R-134a refrigerant, which was common in older models. It’s easy to find and affordable, but never mix it with newer R-1234yf refrigerant. Always confirm the label before recharging.
What type of refrigerant for a Subaru Crosstrek 2013
The 2013 Subaru Crosstrek uses R-134a refrigerant. This type was standard in many vehicles at that time. Always check the A/C label under the hood to confirm before adding refrigerant or doing any recharge.
What type of refrigerant for a Subaru Crosstrek 2012
The 2012 Subaru Crosstrek also uses R-134a refrigerant. This older refrigerant type is widely available. Make sure not to use R-1234yf, as mixing refrigerants can damage your car’s air conditioning system.
2016 Subaru Crosstrek refrigerant capacity
The 2016 Subaru Crosstrek holds around 475 grams (1.05 pounds) of R-134a refrigerant. Always recharge within this limit. Overfilling can reduce cooling performance and harm the A/C system components.
2015 Subaru Crosstrek refrigerant capacity
The 2015 Subaru Crosstrek has a refrigerant capacity of about 475 grams (1.05 pounds) of R-134a. Always use the correct amount for best cooling results and system safety.
2016 Subaru Crosstrek A/C refrigerant
The A/C system in the 2016 Subaru Crosstrek uses R-134a refrigerant. It helps keep your cabin cool. Check the label under the hood and follow safety steps when recharging or servicing the system.
2017 Subaru Crosstrek refrigerant capacity
The 2017 Subaru Crosstrek’s refrigerant capacity is roughly 475 grams (1.05 pounds) of R-134a. Always use the correct amount and type listed on the vehicle’s label for safe and effective cooling.
FAQs
What type of refrigerant does a Subaru Crosstrek take?
Most Subaru Crosstreks use R-134a, while newer models use R-1234yf. Always check the A/C label under your car’s hood.
What kind of refrigerant does a Subaru AC take?
Subaru A/C systems use R-134a in older models and R-1234yf in newer ones. Check your car’s under-hood label to confirm.
Does my car use R-134a or R-1234yf?
If your car is older than 2018, it likely uses R-134a. Most newer models after 2018 use R-1234yf.
When did Subaru switch to 1234yf?
Subaru began switching to R-1234yf around 2018 in newer vehicles to meet modern environmental and air conditioning standards.
Which is better R-134a or R-1234yf refrigerant?
Both work well, but R-1234yf is more eco-friendly and modern. R-134a is cheaper but less environmentally safe.
Why is my Subaru Crosstrek AC not blowing cold air?
Your A/C might be low on refrigerant, have a leak, or a bad compressor. Check levels or visit a mechanic.
How much R-134a does a 2014 Subaru Crosstrek hold?
The 2014 Subaru Crosstrek holds about 475 grams (1.05 pounds) of R-134a refrigerant for proper cooling performance.
Is R-1234yf refrigerant being discontinued?
No, R-1234yf is not being discontinued. It’s the current standard for newer cars because it’s better for the environment.
Conclusion
Choosing the right refrigerant for your Subaru Crosstrek keeps your air conditioning system running smoothly and prevents costly damage. Most older Crosstreks use R-134a, while newer ones (from around 2018 onward) use R-1234yf. Always double-check the A/C label under your hood before adding any refrigerant. Using the correct type, in the right amount, helps your Crosstrek stay cool, efficient, and reliable throughout the year. Regular maintenance and awareness can save you time, money, and keep your drives comfortable.