More and more motorists are trying to take care of their cars by themselves. This outcomes in substantial cost savings because modern cars necessitate more and more maintenance and are made up of more and more technical parts that result in new breakdowns or inconveniences. One of the complications that disturbs more and more Audi S4 owners is a clogged air flow meter, which will lead to a loss of power and black exhaust fumes. In this article we are going to check out how to clean the mass air flow sensor of your Audi S4? . First, we will show you how your mass airflow sensor works and its value, second, why it may be important to clean this sensor , and at last, how to clean the mass air flow sensor of a Audi S4 .
Utility and action of the mass air flow meter of a Audi S4
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So we start our content with the process and intent of your Audi S4 flowmeter.
The aim of the mass air flow sensor on Audi S4
The mass air flow sensor is a part that has been created 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 essential for the ECU to know the exact volume of air loaded 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 Audi S4, do not think twice to consult our content on this subject.
Mass air flow sensor operation on Audi S4
Now, we are going to have a look at how it works, before trying to clean the mass air flow sensor of your Audi S4 , you must already understand how it functions to do this maintenance act properly.
The mass air flow sensor is therefore mainly there to get info on the air intake of your motor vehicle. To achieve this, it must be fitted just after the air intake of your Audi S4, 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 info to the ECU of your car.
Why clean the mass air flow sensor of a Audi S4?
The mass air flow sensor of your Audi S4 can have complications and this is what we will try to see and figure out what complications you may be facing!
Mass air flow sensor complications Audi S4
Here are the different complications that the air flow sensor of your Audi S4 can generate:
- higher fuel consumption: Because a dirty flow meter will actually end up in excessive fuel consumption because of 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 complications connected to a dirty flowmeter will be that your Audi S4 will have more difficulties to start the car.
How do I clean the mass air flow sensor from a Audi S4?
After examining the operation and complications that the flowmeter can generate, we will look at how to fix these complications by describing to you how to clean the mass air flow sensor of your Audi S4 . You should know that this procedure is quite simple to carry out and you will not need advanced mechanical expertise to do it yourself, a good method to avoid a trip to the garage and a steep bill. See down below the different steps to follow to carry out this maintenance act:
- After having located the mass air flow sensor of your Audi S4 , you will have to dismantle it. To achieve this, act 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 be able to move forward to the step cleaning the mass air flow sensor of your Audi S4 . 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 properly, it is in this sense that it will disturb the operation of the engine of your Audi S4. The aim of this cleaning will be to take out all its harmful particles 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 take out most of the grime
- Now we’ll move on to the very delicate cleaning of the flow meter filaments. You have to be very careful, 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.
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Now you know how to clean the mass air flow sensor of your Audi S4 , you should feel a noticeable difference in the behavior of your engine.
If you wish more tutorials on the Audi S4, go to our Audi S4 category.
