More and more drivers are trying to take care of their cars by themselves. This results in considerable cost savings because modern cars necessitate more and more routine service and are made up of more and more technical components that lead to new breakdowns or inconveniences. One of the complications that affects more and more Mercedes Classe B owners is a clogged air flow meter, which will bring about a loss of power and black exhaust gases. Today we are going to take a look at how to clean the mass air flow sensor of your Mercedes Classe B? . First, we will explain how your mass airflow sensor works and its value, 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 .

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

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So we begin our content with the operation and goal of your Mercedes Classe B flowmeter.

The goal of the mass air flow sensor on Mercedes Classe B

The mass air flow sensor is a component that has been created actually quite recently and mainly equipped on diesel models. In fact, with injection engines, the fuel and air intake has become very precise and it is so necessary for the ECU to know the exact volume of air loaded into the engine to change the actions 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, do not think twice to consult our content on this subject.

Mass air flow sensor operation on Mercedes Classe B

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

The mass air flow sensor is consequently mainly there to collect statistics on the air intake of your car. To get this done, it must be fitted just after the air intake of your Mercedes Classe B, i. e. just after the air filter. It is a pipe equipped with a sensor that will analyze the air in the intake and transmit the statistics to the ECU of your car.

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

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

Mass air flow sensor complications Mercedes Classe B

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

  • higher fuel consumption: Because a dirty flow meter will actually result in higher fuel consumption caused by poor air flow…
  • Power loss: Linked to 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 with a dirty flowmeter will be that your Mercedes Classe B will have more troubles to begin the car.

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

After going over the operation and problems that the flowmeter can bring about, we will look at how to resolve these complications by describing to you how to clean the mass air flow sensor of your Mercedes Classe B . You should know that this operation is actually quite basic to perform and you will not need advanced mechanical skills to do it yourself, a good technique to avoid a trip to the garage area and a steep bill. Discover below the different steps to stick to to perform this routine service act:

  • After having located the mass air flow sensor of your Mercedes Classe B , you will have to dismantle it. To get this done, action 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 be able to carry on to the step cleaning the mass air flow sensor of your Mercedes Classe B . This sensor will, over 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 be able to collect data accurately, it is in this sense that it will disturb the operation of the engine unit of your Mercedes Classe B. The goal of this cleaning will be to take out all its impurities to allow it to work efficiently again.
  • Let soak the lower part of your mass air flow sensor (not the plug part) in acetone or another solvent for a few minutes , which will take out most of the grime
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  • Now we’ll proceed to the very gentle cleaning of the flow meter filaments. You have to be very cautious, in any other case your mass air flow sensor will be permanently damaged. 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 , you should feel a noticeable difference in the behavior of your engine unit.

In the event that you have any additional questions about the Mercedes Classe B, do not hesitate to consult our Mercedes Classe B category.