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Charge Subaru Air Conditioner with Freon

This guide provides instructions on charging Subaru Air Conditioner (AC) using an AC Recharge Kit. The instructions in this guide apply to many Subaru models, including Forester, Outback, Impreza, Legacy, WRX,

Charge Subaru Air Conditioner with Freon
DIY COST $20-$30
DIFFICULTY Intermediate


  • Subaru AC blows hot air
  • A/C does not get cold
  • Heat works, but there is no cold air

What you will need


  1. Park the Subaru on level ground. Set the parking brakes.subaru ac refrigenart recharge
  2. Next, open the hood. Pull the hood release under the dashboard to open the hood.
  3. Locate the air conditioner charging port on your Subaru. Look for the light blue cap with the L mark on top.subaru ac port charging location
  4. Start the engine and allow it to idle. Next, turn on climate control. Set the blower fan speed to maximum—set temperature to the coldest setting.
  5. Connect your A/C recharge kit and start recharging your Subaru A/C system. Make sure to follow all instructions that come with your A/C recharge kit.



Aren't you supposed to create a vacuum in the system first via a vacuum pump?


My 2010 Surbaru only has a blue 'H' cap. Does this mean high pressure and I need a Subaru technician to service it?


No if the cap has H you are looking at the high pressure port. You can't connect to this port, the ac recharge kit connection won't even fit. Find the port that has L on it. All Subarus have it, you just need to figure it out.


Is the low pressure charging port on a 2019 Subaru Forester Air Conditioning System a different size than standard? My universal quick disconnect fitting will not slip on all the way to lock.

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