Whether you want to cool down in the summer months, or help you clear the fog from your windshield in the winter, air conditioning in cars is becoming an almost necessary feature recently. But what if the air conditioning in an Mercedes Classe B 3 isn’t cold anymore? This is exactly the question we will try to answer on this page. First, we’ll look at the various problems that can prevent the air conditioning in your Mercedes Classe B 3 from cooling down, and finally, we’ll look at the solutions available to you to deal with this problem.

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WHY IS THE AIR CONDITIONING IN MY Mercedes Classe B 3 NO LONGER COLD?

We will begin our guide with the signs of illness that can justified that the air conditioning of your Mercedes Classe B 3 is no longer cooling.

BAD AIR CONDITIONING SMELL in my Mercedes Classe B 3 air con

One of the fairly known indications that can notify you to the fact that your air conditioning is not functioning 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 permanent or just present when you turn on your air conditioning. To discover a remedy to this malfunction, we suggest you to read our guide dedicated to bad air conditioning odors on Mercedes Classe B 3.

AIR CONDITIONING NOISE ON Mercedes Classe B 3

One of the other indicators that can alert you to a malfunctioning air conditioner is that you experience a strange noise is coming on when you turn on your air conditioner (feel free to approach the vents to check for any dubious noise). This noise could reveal a defective air conditioning clutch or a defective customer compressor.

LOSS OF PRESSURE IN THE AIR CONDITIONING CIRCUIT

Actually quite tricky to identify without complex mechanical expertise, a loss of pressure in your car’s air conditioning system can end result in your air conditioning no longer making 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 B 3

At last, it’s possible that the air conditioning in your Mercedes Classe B 3 is no longer cold just because your air conditioning system is no longer functioning. Here are the different roots of an air conditioning system that no longer functions:

  • Compressor pulley HS: The compressor will be out of power and the circuit will be stopped.
  • Overpressure concern: This will trigger the device to trip.
  • Faulty sensor: As with overpressure, the air-conditioning system will switch to safe mode.

HOW DO I RESOLVE THE AIR CONDITIONING ON MY Mercedes Classe B 3 THAT IS NO LONGER COOLING?

Now that we have been able to observe the main causes of a Mercedes Classe B 3 air conditioning system that no longer cools down, we are going to show you the different solutions available to you . First of all, you should know that an air conditioning system is complex, and that wanting to perform repairs yourself is not always the best idea, supposing 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 carrying out any major repair, clean the air conditioning of your Mercedes Classe B 3, don’t think twice to look at our focused on article on this subject matter.
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 auto parts and around 100 euros more for labour.
Searching for and repairing an air conditioning leak: based 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 B 3 costs about 500 euros with labor.

If perhaps you have any further questions about the Mercedes Classe B 3, do not hesitate to consult our Mercedes Classe B 3 category.