Where is the low pressure service port?

The low side service valve is located in the line that runs from the compressor through the evaporator (firewall) and up to the condensor on the low pressure (suction) side of the system.

How do you put Freon in a Mercedes ML320?

How to Recharge Air Conditioner ML320 W163 1998-2005

  1. Turn the engine on and let it idle.
  2. Open the hood of your ML320 W163 and locate the low-pressure AC service port and remove the cap.
  3. Attach the refrigerant gauge to the service port.
  4. Read the pressure in your air conditioner system.
  5. Always keep the can UPRIGHT.

How do I add refrigerant to my Mercedes?

Open the hood of your VEHICLE and locate the low-pressure AC service port and remove the cap. Attach the refrigerant gauge to the service port. You will need to press and hold the quick-release at the end of the hose, insert it on the AC charging port then release it.

Does Mercedes use freon?

If your Mercedes’ air conditioner is not producing cool enough air or is taking a long time to cool the vehicle, this may be primarily due to low refrigerant in your air conditioner system. You can add freon to your Mercedes by purchasing a can of R134a refrigerant.

What refrigerant does Mercedes use?

R134a
A/C Mercedes-Benz refrigerant filling quantities R134a an 1234yf.

Which one is the low pressure AC port?

The low side service port is usually located between the AC compressor and evaporator. The low side service port will have a black or blue plastic cap that needs to be removed.

How much does it cost to put Freon in a Mercedes?

The average cost for an AC Recharge is between $154 and $194 but can vary from car to car.

Where is the fuel pressure port on a Mercedes?

If you have a hard time finding the fuel pressure port (Schrader valve) on your Mercedes, start from one of the fuel injectors and follow the fuel rail. Remove the Schrader valve cap. Connect your fuel pressure tester. If you turn the ignition ON the fuel pressure should build up, before you even crank the engine.

How does a refrigerant work on a Mercedes SL500?

Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. The A/C system in your SL500 consists of a compressor that is belt-driven, an evaporator and freon.

Why is my Mercedes SL500 blowing hot air?

When the air conditioner in your 1998 Mercedes-Benz SL500 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

What causes lack of acceleration in a Mercedes?

Symptoms include lack of acceleration when you press the gas pedal or vehicle trying to stall. The fuel pump is not providing the required fuel pressure to keep up with the engine demands. Mercedes may jerk during acceleration from a stop. Happen when you hit the gas pedal to the floor.