If you drive an older model Mercedes, you might notice that your air conditioning system will continue to blow warm air even after you’ve recharged the refrigerant in your car. This can be a very frustrating problem for many people! To get around it, you’re going to want to try and do a Mercedes air conditioning reset sooner rather than later.
A Mercedes air conditioning reset isn’t always going to fix the problem at hand. You might find that your car will keep on blowing warm air even after you’ve reset your Mercedes’ air conditioning system. But it’s definitely worth a shot since your alternative is going to be either riding around in a hot car or paying for costly AC repairs. Keep reading to discover more about what a Mercedes air conditioning reset is and how exactly one is done.
What Is a Mercedes Air Conditioning Reset?
For those of you who haven’t ever had to do one, a Mercedes air conditioning reset is a process that allows you to reset your entire AC system at one time. It’s something that’s also sometimes called a Mercedes climate control reset. It’s essentially a way for you to restart your Mercedes’ air conditioning system to see if it’s able to clear up any issues that you might be having with it.
When Should You Attempt a Mercedes Air Conditioning Reset?
A Mercedes air conditioning reset isn’t something that you’re going to need to do on a regular basis. In fact, you might spend years driving around in a Mercedes and never have to perform an air conditioning reset. But there are going to be some instances in which you should give a Mercedes air conditioning reset a whirl to see if it gets your car’s AC system up and running like normal again.
Here are several situations in which you should try a Mercedes air conditioning reset to see how your car responds:
- When your Mercedes is blowing warm air after you recharge your coolant
- When your Mercedes has one or more AC service lights lit up on the dashboard of your car
- When your Mercedes seems to be experiencing some other problem with the AC system in it
Again, you don’t necessarily need to perform a Mercedes air conditioning reset each and every time that you sense trouble with your AC system. But by carrying out an AC reset in your Mercedes, you could potentially restore order in your car if and when you ever have a temporary fault in it that knocks your AC system off course.
How to Do a Mercedes Air Conditioning Reset
Some Mercedes owners get intimidated when they think about the idea of performing a Mercedes air conditioning reset. But you’ll be happy to know that it’s very easy to pull one off. Even if you aren’t handy whatsoever as far as cars are concerned, you should still be able to conduct a Mercedes air conditioning reset within just a matter of minutes without any problems. Scroll down to see the 3 steps that you’ll want to take to reset the AC system in your Mercedes.
Step 1: Putting the Key for Your Mercedes Into the Ignition
To officially get a Mercedes air conditioning reset underway, you’re going to need to take the key for your car and stick it into your ignition. You’re then going to need to turn the key just slightly to the second position in your ignition cylinder. You do not want to start the car since that’ll prevent you from being able to perform a Mercedes air conditioning reset.
Once you have the key for your Mercedes in the second position in your ignition cylinder, you can then remove your hand from it so that you don’t accidentally turn it any further. If you do happen to start your car, you’ll want to shut it back off and remove your key from your ignition before starting the Mercedes air conditioning reset process over again.
Step 2: Holding the Buttons for Recirculating Air and Defrosting Simultaneously
After you have your key in the second position in your ignition cylinder, you can then move on to focusing on the buttons that are used for recirculating air and defrosting in your car. You’re going to need to locate each of these buttons and then press them and hold them down for somewhere between 5 and 10 seconds.
You should continue to hold these buttons down until their individual LED lights start flashing for you. This will let you know that you’ve held the buttons down for a long enough period of time. Once you’ve done this, you can let the buttons go. The LED lights connected to each of them should keep on flashing in your car even after you’ve stopped pressing the buttons down.
Step 3: Waiting for a Minute to Start Your Mercedes’ Engine Up
When you see the LED lights for the two buttons that you pushed down flashing, the only thing that’ll be left to do will be to sit and wait. The LED lights should continue to flash for about a minute or so before they stop flashing. You should then turn your car off completely.
Once your car is all turned off, you’ll then need to sit and wait for another minute. This will give your Mercedes the time that it needs to complete your air conditioning reset. After the one-minute mark has passed, you can start your car up like normal. Your Mercedes air conditioning reset should be complete, and your AC system should be working in the way that it’s supposed to again!
Does a Mercedes Air Conditioning Reset Always Work?
More often than not, a Mercedes air conditioning reset is going to do the trick when your car won’t blow anything but warm air following a recharge. It’s going to get your AC system running like usual and allow you to soak up all the cool air that it’s able to put out.
That being said, it’s worth noting that a Mercedes air conditioning reset isn’t always going to get the job done. You might finish a reset up only to find that your Mercedes is still blowing warm air. To which you’ll ask, “Now what?!?”
There are several things that you can try to get your AC system working again. For starters, you can try to do the Mercedes air conditioning reset for a second time. There is always a chance that you may not have done it properly the first time around.
If that doesn’t work, you can also try:
- Reading through the owner’s manual for your car to see if there are any other steps that you need to take to perform a Mercedes air conditioning reset in your specific vehicle
- Bringing your car to a mechanic who specializes in working on Mercedes vehicles to have them perform the Mercedes air conditioning reset
- Having your Mercedes’ AC system looked at to see if there might be something wrong with it
The Mercedes air conditioning reset isn’t designed to make actual problems disappear. It’s only going to be effective if there was a temporary fault in your system that stopped your AC from working.
Reasons Why Your Mercedes Might Be Blowing Warm Air
If you attempt to do a Mercedes air conditioning reset and your car continues to blow warm air, there could be any number of things causing this to happen. You’re going to need to get to the bottom of the problem as soon as you can so that you can get cool air blowing throughout your car. Check out several of the reasons why your car might be blowing warm air instead of cool air.
1. Your Damper Is Defective
The air conditioning system in your Mercedes has a part called a damper that’s in charge of directing air into your cabin. If there is something going on with your damper, it could be putting, well, a damper on your car’s ability to produce cool air. Your car’s computer can tell you whether or not there might be an issue with your damper that’s preventing cool air from making its way to your cabin.
2. Your Blower Motor Is Broken
Your Mercedes’ air conditioning system also has a part in it called a blower motor that plays a vital role in your AC system’s ability to distribute cool air throughout your car. Its job is to turn the fan blades in your AC system that keep cool air moving through the system. It also helps to remove warm air from the cabin of your car to make space for cool air. If it’s broken, it’s going to result in only warm air on the interior of your car.
3. Your AC Refrigerant Is Leaking
At the end of the day, the most common problem that Mercedes owners face when it comes to their air conditioning systems is an AC refrigerant leak. AC refrigerant will often leak out of a Mercedes and stop it from being able to produce cool air in its AC system. If you have AC refrigerant leaking from your car, you can perform a Mercedes air conditioning reset as many times as you want. It’s not going to do you much good!
How Can You Fix the Air Conditioning System in a Mercedes?
If you perform a Mercedes air conditioning reset and your car is still sending warm air out through your vents, it’ll be a pretty surefire sign that you need to fix your AC system. This, unfortunately, isn’t always easy to do!
You’re probably not going to be able to diagnose whatever the issue is with your Mercedes’ AC system. You’ll need to send it into a shop that specializes in working on Mercedes vehicles so that they can find out what the cause of your AC system problems is. Some of the most common Mercedes AC problems are:
- Bad AC compressor
- Electrical issues in the climate control system
- AC refrigerant leak
- Leaky AC condenser
- Faulty cooling fan control unit
These kinds of problems can’t be cured with a simple Mercedes air conditioning reset. You’ll need to work a little bit harder to diagnose what’s going on with your AC system so that you can fix it.
How Much Does It Cost to Fix the Air Conditioning System in a Mercedes?
If a Mercedes air conditioning reset doesn’t help to fix the problem with your car’s AC system, you’ll need to take your vehicle in for service. You’ll also need to prepare to pay whatever it’s going to cost to fix your AC system. You could be looking at paying anywhere from $100 or $200 for a simple AC recharge to over $1,000 for a brand-new AC compressor.
You might want to think twice when making expensive repairs to the AC system in a Mercedes. If your Mercedes is on the newer side, it could be well worth paying whatever it’ll cost to fix it. But if it’s getting up there in age, you might be better off getting rid of it rather than spending a small fortune on AC repairs.
Can You Sell a Mercedes When the Air Conditioning in It Isn’t Working?
Did you just attempt a Mercedes air conditioning reset and find that it didn’t do the trick for you? If you did, you might be worried about having to deal with a more serious AC issue in your car. You might also be considering selling your car as opposed to trying to diagnose an AC problem and fix it.
This is where Cash Cars Buyer can step in and help! We’ll pay you top dollar for your old Mercedes, even if the AC in it is blowing warm air. Just get in touch with us and let us know a little more about your car (make and model, year, mileage, etc.) and we’ll respond with an offer almost on the spot. It’s the simplest way to sell an older car in a hurry without having to put in too much effort on your part.
Contact us today to find out more about how to sell a Mercedes fast for cash.