More and more motorists are trying to take care of their cars by themselves. This outcomes in considerable cost savings because modern cars involve more and more maintenance and are made up of more and more technical parts that lead to new breakdowns or inconveniences. One of the problems that affects more and more BMW 7 Series owners is a clogged air flow meter, which will end in a loss of power and black exhaust gases. Today we are going to check out how to clean the mass air flow sensor of your BMW 7 Series? . First, we will show you 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 BMW 7 Series .

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Utility and action of the mass air flow meter of a BMW 7 Series

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So we start our content with the procedure and aim of your BMW 7 Series flowmeter.

The purpose of the mass air flow sensor on BMW 7 Series

The mass air flow sensor is a component that has been created quite not too long ago and principally equipped on diesel models. Obviously, with injection engines, the fuel and air intake has become very precise and it is therefore important for the ECU to know the exact volume of air injected into the engine to modify the actions of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your BMW 7 Series, do not hesitate to seek advice from our content on this subject.

Mass air flow sensor operation on BMW 7 Series

Now, we are going to examine how it functions, before trying to clean the mass air flow sensor of your BMW 7 Series , you must already figure out how it works to achieve this maintenance action correctly.

The mass air flow sensor is consequently principally there to obtain data on the air intake of your motor vehicle. To do this, it must be set up just after the air intake of your BMW 7 Series, i. e. just after the air filter. It is a pipe equipped with a sensor that will analyze the air in the intake and transfer the data to the ECU of your car.

Why clean the mass air flow sensor of a BMW 7 Series?

The mass air flow sensor of your BMW 7 Series can have problems and this is what we will try to discover and figure out what problems you might be struggling with!

Mass air flow sensor problems BMW 7 Series

Here are the different problems that the air flow sensor of your BMW 7 Series can generate:

  • higher fuel consumption: Because a dirty flow meter will necessarily lead to excessive fuel consumption caused by poor air flow…
  • Power loss: Linked to similar issue, this lack of air can generate a loss of power to your engine.
  • Difficulties starting the car: Finally, one of the last classic problems connected to a dirty flowmeter will be that your BMW 7 Series will have more issues to start the car.

How do I clean the mass air flow sensor from a BMW 7 Series?

After looking at the operation and problems that the flowmeter can generate, we will look at how to fix these problems by showing to you how to clean the mass air flow sensor of your BMW 7 Series . You should know that this operation is quite very easy to execute and you will not need advanced mechanical skills to do it yourself, a good method to avoid a trip to the workshop and a steep bill. See down below the different steps to stick to to execute this maintenance act:

  • After having located the mass air flow sensor of your BMW 7 Series , you will have to dismantle it. To do this, action 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 move forward to the step cleaning the mass air flow sensor of your BMW 7 Series . 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 disrupt the operation of the engine unit of your BMW 7 Series. The purpose 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 watchful, otherwise 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 BMW 7 Series , you should feel a noticeable difference in the behavior of your engine unit.

If you have any additional questions about the BMW 7 Series, do not hesitate to consult our BMW 7 Series category.