Having a problem with your motor vehicle is traditional, because regrettably recent vehicles are more and more complex and consequently subject to more and more possible breakdowns. On this page we’re going to try to help you to resolve an injection problem on your Audi A5 . This is a problem that is specially annoying because it can eventually bring your car to non starting or damaged engine. To get this done, first we will discover how injection functions, then, what are the different problems that can exist on a Audi A5 injectors , and at last, how to resolve them.

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What is the intent of the injection of a Audi A5?

So we commence our article by promptly detailing how an injection system functions so that you have all the info you need to figure out the failure affiliated with it. < br>
The injection system of a Audi A5 manages the fuel intake into the engine , it replaces the old carburettors. It has the benefit to be far more precise and to come, under pressure, to launch the fuel in the engine. The injection pump takes care of pressurizing the fuel and transferring it to the injectors, and the injectors will discharge the fuel in the form of micro-drops into the cylinders of your Audi A5. The benefit of fuel injection is to have a much more precise dosage than a carburettor and to enable a better air/fuel mixture and consequently a better combustion.

What are the different injection problems on Audi A5?

Now in this second component, we are going to discover the different injection problems and their manifestations that you might face on your Audi A5 .

Injection pump problems Audi A5

To start, we will discover the injection pump problems on your Audi A5, there are not many of them, they are generally chronic but we will detail them down below:

  • Electronic problem of the high pressure pump: If you have an electronic problem, the pressure in your injection system may be too high or too low which will trigger a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine of your Audi A5.
  • Leakage from the injection pump of your Audi A5: If you have a significant leakage problem, the result will be much the same as if you have a lack of pressure, you will not have enough pressure and consequently the combustion of your fuel will not be good

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Concerning the outcomes and manifestations of a fuel pump problem on a Audi A5 , you will most certainly experience, a lack of power, your engine grazing, dark smoke emissions…

Injectors problems Audi A5

Now we proceed to the injector problems on Audi A5 . Injectors represent the end of your injection system, here are the different problems you might encounter:

  • Dirty Audi A5 injectors: This can happen because of poor fuel quality, they will let less fuel through or more if they are entirely clogged. So you will possibly have one or more cylinders that are not functioning effectively.
  • Leaky Audi A5 injector: It’s generally at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Audi A5 HS: This is the circumstance when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Concerning the symptoms of injector problems on your Audi A5 it is about the same as for a defective injection pump. You might experience problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection problem on a Audi A5?

To finish our article content on the injection problems on Audi A5 , we will try to give you the solutions that exist to resolve these problems.
If after a precise diagnosis it’s your injection pump that is the source of your problems, it will regrettably be very difficult to intervene on the trouble without replacing the component, this change generally goes with the replacement of the injectors, and occasionally the tank, it will take between 2000 and 3000 euros for the whole, try to get several diagnostics and estimates before starting any repair.
Concerning a problem with an injector there are different solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Audi A5, do not hesitate to seek advice from our article on this subject to get the process. If it doesn’t work, you will have to replace them.
  • Leaky injector: The change and the purchase of a joint kit will only cost you a few tens of euros, but you still need to be able to change it, do not think twice to seek advice from our article on the injectors that leak on Audi A5, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is damaged or doesn’t work anymore, in general, the replacement of an injector costs around 500 euros labor included.

If you want more guides on the Audi A5, go to our Audi A5 category.