Why does my car have a low Freon reading?
If you get this reading from your AC system, and it’s still blowing hot air out of the vents, you have a vent issue not an AC Freon issue. We have gone as far as we can go without any tools, but we should have narrowed down where our problem is with the above steps.
Where is the freon compressor in a car?
It will be located on the front of the engine where all you belts run (the front of the engine can face either side of the engine compartment if it is a transverse engine. Look for the drive belts and you have found the front of the engine). The compressor will have two metal tubes coming out of the back or side/top of unit.
How to check your car’s AC Freon level?
You will notice that with the car running and the AC off, the pulley ran by the belt will be spinning but the front hub will be stationary. With the car running, turn the air conditioner on and see if the clutch engages the hub on the AC compressor (everything on the front of the compressor will be spinning).
How to recharge air conditioner ML320 W163 1998?
Open the hood of your ML320 W163 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. Read the pressure in your air conditioner system.
Why is my air conditioning not working on my Mercedes ML320?
What are common reasons my Mercedes-Benz ML320 has air conditioning problems? While there are a variety of reasons your Mercedes-Benz ML320 air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
Where is the charging port on an ML W163?
Where is the A/C charging port located? The A/C charging port on your ML W163 is located on the passenger side of the firewall. Look near the battery and the coolant expansion tank. You will see the A/C line and the black plastic cap on top of the A/C low-pressure line port.
What should the pressure be on a Mercedes air conditioner?
Read the pressure in your air conditioner system. If the pressure is low the gauge reading will be in the white zone. If the pressure is normal then the gauge should be in the green zone. You should not have a reading on the HIGH / RED zone except when the car is turned off, in which case it is normal. Always keep the can UPRIGHT.