Where is the charging port on the ML320 W163?
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.
How can I charge my Mercedes ML320 air conditioner?
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. If the pressure is low the gauge reading will be in the white zone.
Are there any problems with my Mercedes ML 320?
Low range light flashing. Power steering problems. Will need power steering pump replacement. Door lock actuators also tend to be prone to failure. Plastic trim inside the car break easily. Window regulator. Fuel pump. Oxygen sensors. Alternator may need replacement between 130k and 170k miles.
What kind of gearbox does the Mercedes ML have?
The 722.6 gearbox installed in the ML is one of the most reliable transmission produced. ABS/ETS/ESP lights. Needs replacement of ABS pump. Easy DIY, follow these instructions. Transmission O-ring. Follow these DIY instructions if you need to repair yours. Transmission stuck in gear, limp mode. Learn how to troubleshoot transmission limp mode.
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.
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. If the pressure is low the gauge reading will be in the white zone.
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.
Where is the pressure switch on a Mercedes?
The pressure switch is located directly under the A/C condenser so you will want to start the procedure by lifting the vehicle and removing the forward bumper splash shield. This will allow you to access the shield that protects the condenser and the A/C pressure switch.
Where are the low and high AC pressure switches located?
The low-pressure side switch is found before the AC compressor, while the high-pressure switch comes after the compressor. Most AC pressure switches are found within the engine compartment, but some manufacturers put them elsewhere. A look in your service manual will show you the appropriate location for your model. AC Pressure Switch Function
The pressure switch is located directly under the A/C condenser so you will want to start the procedure by lifting the vehicle and removing the forward bumper splash shield. This will allow you to access the shield that protects the condenser and the A/C pressure switch.
The low-pressure side switch is found before the AC compressor, while the high-pressure switch comes after the compressor. Most AC pressure switches are found within the engine compartment, but some manufacturers put them elsewhere. A look in your service manual will show you the appropriate location for your model. AC Pressure Switch Function
What happens when you charge the AC in a Mercedes?
If the refrigerant level is very low, the AC compressor will not engage. Charge the AC system for a couple of minutes with the engine running, and you should notice the AC compressor engage / kick in once you add enough refrigerant into the system.