Why does my car AC not blow cold air?
The same is true for your car’s AC system. If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. While there are several potential issues, the most common is low refrigerant. The level of refrigerant in your system decreases naturally over time (very, very slowly),…
Why is my AC compressor running but not cooling?
AC Compressor Running But Not Cooling : The Possible Reasons If the Refrigerant Is Leaking. It often happens, and it is the most common issue that makes an AC blowing hot air. When… If the Condenser Is Blocked. The condenser is one of the important components of an HVAC system as it converts the …
How to know if your Mercedes Benz has an AC problem?
Start the car and turn on the AC. (make sure the EC button it off!) Press and hold the REST button for 5 seconds or so. The display will change from your temperature settings to a diagnostic mode The number on the left is the sensor ID and the number on the right is the value. Use the left and right “Auto” buttons to cycle through the sensors.
What should the air pressure be in a Mercedes Benz?
With the car off the pressure readings should be about the same as ambient temp. in degrees F. If the outside temp is say 80 degrees F, then the pressures on both gauges should be around 80 psi. If the pressures are ok, the compressor should kick on when a/c is requested. If the compressor does not come on, then there is an electrical concern.
Why is my a / C compressor not working on my Mercedes?
One other reason why the A/C compressor does not engage is the fact that the system may be low on R134 refrigerant. Typically older cars may have very slow leaks that may require top off with refrigerant every couple of years. You can use a R134a recharge kit to recharge your system if the A/C compressor is not working.
Why is my AC not blowing cold air?
The chemical Freon or simply you can call it coolant is the reason why the AC cools hot air quickly. The chemical can run out if there is any leakage in the AC. Thus, AC would not work, as there is no Freon in the system.
What kind of air conditioner does a Mercedes Benz have?
The A/C system on your Mercedes-Benz includes many sensors and components including the air conditioner compressor. The A/C compressor is the heart of the system. One crucial element of the A/C compressor is the clutch. It is important to understand how to check if the A/C compressor is engaging or not.
With the car off the pressure readings should be about the same as ambient temp. in degrees F. If the outside temp is say 80 degrees F, then the pressures on both gauges should be around 80 psi. If the pressures are ok, the compressor should kick on when a/c is requested. If the compressor does not come on, then there is an electrical concern.