Modern automobiles are becoming more and more technical and have parts that are hard to remedy or maintain yourself. Today we will focus on a component that is important for the proper working of your car. They may require frequent routine service and we will find out how to clean the fuel injectors of a Audi S4? For this, in the beginning, we will find out why it might be important to clean the injectors of your car, and subsequently, the approach to clean the injector of a Audi S4 .

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Why clean the injectors of a Audi S4?

So we start our content page with the interest of injector cleaning on Audi S4 . Before showing how to clean the injectors of your Audi S4, we will first explain you quickly the function and the working of the injectors of your car, then what are the signs of illness that should make you reflect on cleaning them. Be aware that a common cleaning of your car’s injectors will help you to avoid any concerns upstream.

Purpose and operation of an injector on Audi S4

The injectors of your Audi S4 have a particularly necessary mission, in actual fact, they will have the purpose of controlling the fuel flow into the engine . They are small nozzles (of the order of one micron) which, under pressure, will manage the release of fuel in the form of micro-drops and thus improve its combustion. They have the benefit of being set by the ECU and consequently have a very precise fuel release.

Symptoms of a dirty injector on Audi S4

Now we’re going to look at the alerts that should make you consider cleaning the injectors of your Audi S4 . You should know that if your injectors are clogged or blocked, you will have a bad combustion and you may in the long run damage them irremediably and have to replace them, which will cost you quite quite a lot of money . If it turns out it is rather a leak that you notice on the injectors of your Audi S4, seek advice from this content page to discover the solutions available to you. Find down below, the list of signs of illness of blocked injectors on your car:

  • Problems to start the engine: If your car has problems to start, it is possible that the poor fuel diffusion is at the source of this problem.
  • A loss of power: If you experience your engine unit is losing power, it’s possible that poor fuel delivery through your clogged injectors is the trigger of your problem.
  • Unstable idle speed: Injectors clogged on Audi S4 can provoke abnormal engine behavior, including unstable idle speed.
  • Excessive dark smoke emissions: Poor combustion in your engine can cause thick black smoke.

How to clean the injectors of a Audi S4?

Now that we have discovered the causes for a fuel injector cleaning on Audi S4 , we will explain how to carry out this procedure. There are 3 main possible procedures, we will now present them to you one at a time.

Cleaning the injectors of a Audi S4 with a specific additive

First and most basic technique to do it, you can simply use an injector cleaner to preserve the injectors of your Audi S4 . This additive which will only cost you about fifteen euros and will allow you to maintain your injectors. Obviously, this product will have a very slight effectiveness if your injectors are already clogged, but used every 5000 kilometers it will prevent this from happening. Follow the instructions to use it correctly, but just pour the bottle into the tank to carry out the procedure, so it is accessible to everyone.

Clean the injectors of your Audi S4 with ultrasound

A more complex and more expensive but much more effective methodology, you can by calling a specialist clean the injectors of your Audi S4 with ultrasound . This procedure, can be done by yourself if you buy the adapted equipment which, based on the price, will not have the same efficiency (count between 50 and 500€ based on the quality of the machine). It allows thanks to ultrasounds to dissolve all the dirt gathered on the injectors of your car. In any other case, you can bring your injectors to a specialist who will be equipped with a more efficient tools, you will be charged about 50 to 100 euros for this service, nevertheless, you will have to take apart your injectors yourself.

Clean the injectors of a Audi S4 with a pressurized cleaning system

This approach to clean the injectors of a Audi S4 , is not the most effective but already allows you to clean your injectors without having to take apart them . It is thanks to a pressure system installed on the injector rail that the impurities and dirt present on your injectors will be cleaned. This solution will cost you around 300 euros based on the specialist you call upon.

If you need more tutorials on the Audi S4, go to our Audi S4 category.