More and more drivers are trying to take care of their cars by themselves. This outcomes in substantial savings because contemporary cars require more and more routine service and are made up of more and more technical parts that result in new breakdowns or inconveniences. One of the complications that impacts more and more Mercedes Classe B 3 owners is a clogged air flow meter, which will end in a loss of power and black exhaust fumes. Today we are going to take a look at how to clean the mass air flow sensor of your Mercedes Classe B 3? . First, we will describe how your mass airflow sensor works and its usefulness, second, why it might be relevant to clean this sensor , and finally, how to clean the mass air flow sensor of a Mercedes Classe B 3 .

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Utility and action of the mass air flow meter of a Mercedes Classe B 3

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So we start our content page with the procedure and purpose of your Mercedes Classe B 3 flowmeter.

The aim of the mass air flow sensor on Mercedes Classe B 3

The mass air flow sensor is a part that has been developed quite not long ago and mainly supplied on diesel models. In truth, with injection engines, the fuel and air intake has become very precise and it is consequently essential for the ECU to know the exact volume of air added into the engine to adapt the behaviour of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your Mercedes Classe B 3, do not think twice to consult our content page on this subject.

Mass air flow sensor operation on Mercedes Classe B 3

Now, we are going to examine how it works, before trying to clean the mass air flow sensor of your Mercedes Classe B 3 , you must already find out how it works to do this routine service work properly.

The mass air flow sensor is therefore mainly there to get info on the air intake of your car. To achieve this, it must be set up just after the air intake of your Mercedes Classe B 3, i. e. just after the air filter. It is a pipe supplied with a sensor that will review the air in the intake and transfer the info to the ECU of your car.

Why clean the mass air flow sensor of a Mercedes Classe B 3?

The mass air flow sensor of your Mercedes Classe B 3 can have complications and this is what we will try to discover and figure out what complications you might be struggling with!

Mass air flow sensor complications Mercedes Classe B 3

Here are the different complications that the air flow sensor of your Mercedes Classe B 3 can bring about:

  • higher fuel consumption: Because a dirty flow meter will actually end up in excessive fuel consumption due to poor air flow…
  • Power loss: Associated with similar issue, this lack of air can bring about a loss of power to your engine.
  • Difficulties starting the car: Finally, one of the last classic complications connected to a dirty flowmeter will be that your Mercedes Classe B 3 will have more issues to start the car.

How do I clean the mass air flow sensor from a Mercedes Classe B 3?

After reviewing the operation and problems that the flowmeter can bring about, we will look at how to fix these complications by describing to you how to clean the mass air flow sensor of your Mercedes Classe B 3 . You should know that this procedure is quite simple to carry out and you will not need advanced mechanical skills to do it yourself, a good way to avoid a trip to the mechanic and a steep bill. See down below the different steps to stick to to carry out this routine service act:

  • After having located the mass air flow sensor of your Mercedes Classe B 3 , you will have to dismantle it. To achieve this, work delicately, but you will just have to disassemble it on both sides of the air duct and detach the electrical plug on top of it.
  • Once taken apart, you will have the ability to proceed to the step cleaning the mass air flow sensor of your Mercedes Classe B 3 . This sensor will, with time, get dirty and its two “filaments” that will give information to your computer on the quality and temperature of the air will no longer have the ability to collect data properly, it is in this sense that it will disturb the operation of the engine of your Mercedes Classe B 3. The aim of this cleaning will be to remove all its impurities to allow it to work efficiently again.
  • Let soak the lower section of your mass air flow sensor (not the plug part) in acetone or another solvent for a few minutes , which will remove most of the grime
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  • Now we’ll move on to the very delicate cleaning of the flow meter filaments. You have to be very watchful, in any other case your mass air flow sensor will be permanently broken. With the help of a fine brush and solvent, delicately clean the two filaments of your mass air flow sensor . If you are too afraid of harming it, you can also clean them with a brake fluid in the form of an aerosol by spraying the jet on these filaments.

Now you know how to clean the mass air flow sensor of your Mercedes Classe B 3 , you should feel a noticeable difference in the behavior of your engine.

If you want more guides on the Mercedes Classe B 3, go to our Mercedes Classe B 3 category.