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.
How long does it take to recharge Mercedes Benz air conditioner?
This video shows how to recharge the air conditioner on your Mercedes-Benz. Charging the system with a refrigerant charging kit can take between 5 to 10 minutes depending on the system capacity. Before we begin, remember: These instructions may vary depending on the AC recharge kit that you are using.
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.
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.
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.
This video shows how to recharge the air conditioner on your Mercedes-Benz. Charging the system with a refrigerant charging kit can take between 5 to 10 minutes depending on the system capacity. Before we begin, remember: These instructions may vary depending on the AC recharge kit that you are using.
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 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 should the temp be before charging an air conditioner?
Make sure you get air out of your refrigerant gauge hoses before charging a air conditioning unit. Target subcooling may be between 10-15 degrees F, depending on the manufacturer specs. Target superheat may be between 12-20 degrees F.
How big of a charge do you need for an A / C unit?
If you are charging an a/c unit with a line set longer than 15 feet, such as at a high rise or condo, then you can fine tune the charge with super heat or subcooling. Some manufacturers will call for .06oz per 1ft of 3/8″ liquid line set, if you are a number cruncher and would prefer to do the math.
How to troubleshoot your Mercedes Benz air conditioner?
Identify the location of your compressor. Look at the pullyer and you should be able to see if it spining or not. The engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. The pulley spins any time the engine is running. The center part of the A/C pulley only engages when the A/C is on.
How much does it cost to charge a Mercedes air conditioner?
Mercedes-Benz Air Conditioning Service Cost. A Mercedes-Benz specialized shop may charge you between $100-$150 to diagnose your A/C system. Important factors to keep in mind when charging the A/C system are: Ensure the system is sealed and not leaking. Ensure the system does not have any moisture or air in it.
Do you need to know how to charge an air conditioner?
Before attempting to learn how to charge an a/c system, you need to have your Section 608 Technician Certification Type 2, or Universal. There’s lots of different equipment out there, and if you want the real answer on charging an air conditioning system, I might tell you to charge the unit according to manufacturer specs.
Identify the location of your compressor. Look at the pullyer and you should be able to see if it spining or not. The engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. The pulley spins any time the engine is running. The center part of the A/C pulley only engages when the A/C is on.
What causes an air conditioner compressor to disengage?
The A/C system is designed to disenage the A/C if the pressure in the lines is to low. This happenes to protect the system. Compressor could be disengaged becasue the system does not have enough refrigerant pressure to trip the low pressure cutoff switch that cycles the compressor. Be careful to not overcharge the system either.
How to troubleshoot your Mercedes medic air conditioner?
Turn the A/C ON. If you have an Economy button make sure that is off. Make sure fan is on HIGH, temperature selector is turned all the way to COLD, and that the A/C and recirculate light indicators are on. Set the temperature to cold, the lowest setting. Set the cooling fans on high on the climate control.
What is the code for Mercedes Benz air conditioning?
Also make note of the recharged bar pressure (17) – you can periodically check code 7 to make sure the system is holding the refrigerant pressure – if it decreases over time you have a slow leak and need to address it. Hope this helps and good luck! 2001 E55, 1999 C43. thanks!
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.
How to recharge Mercedes-Benz air conditioner-Easy Steps?
How to recharge A/C (air conditioner) system on your Mercedes-Benz. This video will show a quick and affordable way to top off your A/C system and get it blowing cold air again. One of the highest ranking A/C refrigernats also has a sealer that should not damage the A/C system. AC Recharge Kit Recomended: https://www.amazon.com/ACP-100-Profes…
Turn the A/C ON. If you have an Economy button make sure that is off. Make sure fan is on HIGH, temperature selector is turned all the way to COLD, and that the A/C and recirculate light indicators are on. Set the temperature to cold, the lowest setting. Set the cooling fans on high on the climate control.
How does Mercedes Benz air conditioner system work?
While the pictures on this article are of Mercedes Benz cars, this guide is written to apply to all makes and models. How the A/C System Works. A/C compressor not engaging.
What kind of refrigerant do you use on a Mercedes?
Or if you know you have a seal proof system or don’t like the idea of adding these additives into the expensive Mercedes-Benz A/C climate control system, then adding pure R134a or just one with only added oil will be the safest way to go. Recommended R134 A/C refrigerant kits for aircon refill?
Why does my Mercedes not start when I charge the battery?
This Mercedes-Benz is not starting because of a low battery. In this case, what you need to do is trickle charge your battery using any of these 12 volt battery trickle chargers. If you need help read this article on How to charge a Mercedes-Benz the right way. Mercedes won’t start, and it’s not the battery.
Why is my Mercedes-Benz C230 AC not working?
Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my Mercedes-Benz C230 has air conditioning problems?
This Mercedes-Benz is not starting because of a low battery. In this case, what you need to do is trickle charge your battery using any of these 12 volt battery trickle chargers. If you need help read this article on How to charge a Mercedes-Benz the right way. Mercedes won’t start, and it’s not the battery.