More and more drivers are trying to maintain their vehicles by themselves. This outcomes in significant savings because modern cars involve more and more routine service and are done up of more and more technical components that lead to new breakdowns or inconveniences. One of the problems that impacts more and more Volkswagen Passat owners is a clogged air flow meter, which will lead to a loss of power and black exhaust gases. In this article we are going to take a look at how to clean the mass air flow sensor of your Volkswagen Passat? . First, we will describe how your mass airflow sensor operates and its advantages, second, why it may be important to clean this sensor , and at last, how to clean the mass air flow sensor of a Volkswagen Passat .

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Utility and action of the mass air flow meter of a Volkswagen Passat

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So we begin our content with the operation and goal of your Volkswagen Passat flowmeter.

The goal of the mass air flow sensor on Volkswagen Passat

The mass air flow sensor is a component that has been developed quite lately and specifically equipped on diesel models. In truth, with injection engines, the fuel and air intake has become very precise and it is consequently necessary for the ECU to know the exact volume of air loaded into the engine to modify the behaviour of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your Volkswagen Passat, do not hesitate to seek advice from our content on this subject.

Mass air flow sensor operation on Volkswagen Passat

Now, we are going to have a look at how it operates, before trying to clean the mass air flow sensor of your Volkswagen Passat , you must already understand how it functions to achieve this routine service action correctly.

The mass air flow sensor is therefore specifically there to obtain info on the air intake of your car. To get this done, it must be mounted just after the air intake of your Volkswagen Passat, i. e. just after the air filter. It is a pipe equipped with a sensor that will review the air in the intake and transmit the info to the ECU of your car.

Why clean the mass air flow sensor of a Volkswagen Passat?

The mass air flow sensor of your Volkswagen Passat can have problems and this is what we will try to see and discover what problems you may be struggling with!

Mass air flow sensor problems Volkswagen Passat

Here are the different problems that the air flow sensor of your Volkswagen Passat can trigger:

  • higher fuel consumption: Because a dirty flow meter will necessarily end up in more significant fuel consumption because of poor air flow…
  • Power loss: Linked to the same issue, this lack of air can trigger a loss of power to your engine.
  • Difficulties starting the automobile: Finally, one of the last traditional problems connected to a dirty flowmeter will be that your Volkswagen Passat will have more difficulties to begin the vehicle.

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

After going over the operation and concerns that the flowmeter can trigger, we will look at how to fix these problems by showing to you how to clean the mass air flow sensor of your Volkswagen Passat . You should know that this process is quite very easy to carry out and you will not need advanced mechanical skills to do it your self, a good way to avoid a trip to the mechanic and a steep bill. Discover below the different steps to stick to to carry out this routine service act:

  • After having based the mass air flow sensor of your Volkswagen Passat , you will have to dismantle it. To get this done, action gently, 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 disassembled, you will be able to carry on to the step cleaning the mass air flow sensor of your Volkswagen Passat . 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 correctly, it is in this sense that it will affect the operation of the engine unit of your Volkswagen Passat. The goal of this cleaning will be to remove 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 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 cautious, in any other case your mass air flow sensor will be permanently damaged. With the help of a fine brush and solvent, gently 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 Passat , you should feel a noticeable difference in the behavior of your engine unit.

To get more tips on the Volkswagen Passat, take a look at the Volkswagen Passat category.