If you want to cool down in summer time, or help you clear the fog from your windshield in the winter, air conditioning in vehicles has grown to be an almost mandatory feature recently. But what if the air conditioning in an Mercedes Classe M isn’t cold anymore? This is precisely the question we will try to answer on this page. First, we’ll look at the various complications that can prevent the air conditioning in your Mercedes Classe M from cooling down, and finally, we’ll check out the solutions available to you to fix this problem.
WHY IS THE AIR CONDITIONING IN MY Mercedes Classe M NO LONGER COLD?
We will begin our guide with the symptoms that can explain that the air conditioning of your Mercedes Classe M is no longer cooling.
BAD AIR CONDITIONING SMELL in my Mercedes Classe M air con
One of the fairly known indications that can notify you to the fact that your air conditioning is not working is if you have a musty or damp smell inside your motor vehicle, and yes, a bad smell can be a warning of a defective air conditioning system, it can be perpetual or only present when you turn on your air conditioning. To find a solution to this malfunction, we recommend you to read our guide dedicated to bad air conditioning odors on Mercedes Classe M.
AIR CONDITIONING NOISE ON Mercedes Classe M
One of the other indications that can alert you to a failing air conditioner is that you feel a strange noise is coming on when you turn on your air conditioner (feel free to approach the vents to check for any suspicious noise). This noise could indicate a defective air conditioning clutch or a defective customer compressor.
LOSS OF PRESSURE IN THE AIR CONDITIONING CIRCUIT
Quite tricky to spot without elaborate mechanical expertise, a loss of pressure in your car’s air conditioning system can result in your air conditioning no longer generating cold. There are some possible motives for this loss of pressure, and these are listed down below:
- Leakage of refrigerant gases
- Non-functioning air conditioning compressor
AIR CONDITIONING SYSTEM THAT DOESN’T WORK AT ALL on my Mercedes Classe M
At last, it’s possible that the air conditioning in your Mercedes Classe M is no longer cold just because your air conditioning system is no longer working. Here are the different origins of an air conditioning system that no longer works:
- Compressor pulley HS: The compressor will be out of power and the circuit will be stopped.
- Overpressure concern: This will cause the device to trip.
- Faulty sensor: As with overpressure, the air-conditioning system will switch to safe mode.
HOW DO I FIX THE AIR CONDITIONING ON MY Mercedes Classe M THAT IS NO LONGER COOLING?
Now that we have been able to notice the main motives of a Mercedes Classe M air conditioning system that no longer cools down, we are going to present you the various solutions available to you . First of all, you should know that an air conditioning system is elaborate, and that wanting to carry out repairs yourself is not always the best idea, assuming that you are sure of the source of the breakdown. Even so, here are the main possible repairs and an estimate of their cost.
First step, before performing any major repair, clean the air conditioning of your Mercedes Classe M, don’t hesitate to check out our focused on article on this subject.
If this is not enough, bleed and refill the coolant, which should cost you around 100aine euros.
Replacing the air conditioning clutch: you will need to spend around 150 euros for parts and around 100 euros more for labour.
Searching for and repairing an air conditioning leak: depending on the position of the leak it will cost you more or less, count on average 150/200 euros, counting the air conditioning refill.
Replacement of an air conditioning condenser: you will need to count about 200 euros.
Replacing the air conditioning gas compressor on Mercedes Classe M costs about 500 euros with labor.
If you wish more tutorials on the Mercedes Classe M, go to our Mercedes Classe M category.
