More and more motorists are trying to take care of their vehicles by themselves. This results in significant cost savings because contemporary cars involve more and more routine service and are made up of more and more technical components that result in new breakdowns or inconveniences. One of the problems that impacts more and more Volkswagen Polo 4 owners is a clogged air flow meter, which will bring about a loss of power and black exhaust fumes. Today we are going to look at how to clean the mass air flow sensor of your Volkswagen Polo 4? . First, we will describe how your mass airflow sensor functions and its usefulness, second, why it might be relevant to clean this sensor , and at last, how to clean the mass air flow sensor of a Volkswagen Polo 4 .

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Utility and operation of the mass air flow meter of a Volkswagen Polo 4

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So we start our content with the procedure and purpose of your Volkswagen Polo 4 flowmeter.

The goal of the mass air flow sensor on Volkswagen Polo 4

The mass air flow sensor is a component that has been created quite not long ago and mainly supplied on diesel models. In fact, 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 injected 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 Volkswagen Polo 4, do not hesitate to seek advice from our content on this subject.

Mass air flow sensor operation on Volkswagen Polo 4

Now, we are going to examine how it functions, before trying to clean the mass air flow sensor of your Volkswagen Polo 4 , you must already figure out how it works to achieve this routine service work correctly.

The mass air flow sensor is consequently mainly there to get statistics on the air intake of your motor vehicle. To achieve this, it must be fitted just after the air intake of your Volkswagen Polo 4, i. e. just after the air filter. It is a pipe supplied 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 Volkswagen Polo 4?

The mass air flow sensor of your Volkswagen Polo 4 can have problems and this is what we will try to see and figure out what problems you might be facing!

Mass air flow sensor problems Volkswagen Polo 4

Here are the different problems that the air flow sensor of your Volkswagen Polo 4 can generate:

  • higher fuel consumption: Because a dirty flow meter will actually end in excessive fuel consumption due to poor air flow…
  • Power loss: Related to the same issue, this lack of air can generate a loss of power to your engine.
  • Difficulties starting the car: Finally, one of the last traditional problems linked to a dirty flowmeter will be that your Volkswagen Polo 4 will have more difficulties to start the vehicle.

How do I clean the mass air flow sensor from a Volkswagen Polo 4?

After reviewing the operation and problems that the flowmeter can generate, we will look at how to fix these problems by explaining to you how to clean the mass air flow sensor of your Volkswagen Polo 4 . You should know that this procedure is quite simple to accomplish and you will not need advanced mechanical abilities to do it your self, a good technique to avoid a trip to the mechanic and a steep bill. See down below the different steps to stick to to accomplish this routine service act:

  • After having located the mass air flow sensor of your Volkswagen Polo 4 , 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 disconnect the electrical plug on top of it.
  • Once taken apart, you will have the ability to carry on to the step cleaning the mass air flow sensor of your Volkswagen Polo 4 . 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 correctly, it is in this sense that it will disturb the operation of the engine of your Volkswagen Polo 4. The goal of this cleaning will be to take out all its harmful particles 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, otherwise 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 damaging 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 Volkswagen Polo 4 , you should feel a noticeable difference in the behavior of your engine.

To discover more tips on the Volkswagen Polo 4, take a look at the Volkswagen Polo 4 category.