What should the pressure be on a Mercedes Charger?
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. As you charge the system shake the can slightly every two or three seconds while you are charging.
Why does my Mercedes Charger lock up while charging?
Only gas should go into the AC system, by turning the can upside down the AC system will get liquid refrigerant which can cause the AC compressor to lock up and also wash out the oil. Keep the AC refrigerant can in the up position and only shake it slightly while charging. If the refrigerant level is very low, the AC compressor will not engage.
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.
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. As you charge the system shake the can slightly every two or three seconds while you are charging.
Only gas should go into the AC system, by turning the can upside down the AC system will get liquid refrigerant which can cause the AC compressor to lock up and also wash out the oil. Keep the AC refrigerant can in the up position and only shake it slightly while charging. If the refrigerant level is very low, the AC compressor will not engage.
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.
Where does the gas go when recharging a Mercedes?
Only gas should enter via the A/C low-pressure charging port. When you attach the gauge, the pressure is on the red zone. This may happen because the engine is off or the A/C compressor is not engaged. You measure the aircon gas pressure and the gauge shows zero. This could happen because the system is very low on refrigerant.
Only gas should enter via the A/C low-pressure charging port. When you attach the gauge, the pressure is on the red zone. This may happen because the engine is off or the A/C compressor is not engaged. You measure the aircon gas pressure and the gauge shows zero. This could happen because the system is very low on refrigerant.