Having a issue with your motor vehicle is traditional, because unfortunately recent automobiles are more and more complex and therefore be subject to more and more possible breakdowns. Today we’re going to try to help you to solve an injection problem on your Audi A7 . This is a issue that is particularly bothersome because it can sooner or later bring your car to non starting or damaged engine. To achieve this, first we will discover how injection works, then, what are the different problems that can exist on a Audi A7 injectors , and at last, how to solve them.
What is the aim of the injection of a Audi A7?
So we commence our article by quickly explaining how an injection system works so that you have all the info you need to figure out the failure affiliated with it. < br>
The injection system of a Audi A7 handles the fuel intake into the engine , it replaces the old carburettors. It has the advantage to be much 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 release the fuel in the form of micro-drops into the cylinders of your Audi A7. The advantage of fuel injection is to have a much more precise dosage than a carburettor and to enable a better air/fuel mixture and therefore a better combustion.
What are the different injection problems on Audi A7?
Now in this second component, we are going to discover the different injection problems and their symptoms that you may possibly face on your Audi A7 .
Injection pump problems Audi A7
To begin, we will discover the injection pump problems on your Audi A7, there are not many of them, they are generally persistent but we will highlight them below:
- Electronic issue of the high pressure pump: If you have an electronic issue, the pressure in your injection system might be too high or too low which will cause a bad air/fuel mixture and therefore a bad combustion and thus alter the performance of the engine of your Audi A7.
- Leakage from the injection pump of your Audi A7: 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 therefore the combustion of your fuel will not be good
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Regarding the consequences and symptoms of a fuel pump issue on a Audi A7 , you will undoubtedly feel, a lack of power, your engine grazing, dark smoke emissions…
Injectors problems Audi A7
Now we proceed to the injector problems on Audi A7 . Injectors represent the end of your injection system, here are the different problems you may possibly encounter:
- Dirty Audi A7 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 probably have one or more cylinders that are not working properly.
- Leaky Audi A7 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 A7 HS: This is the case when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.
Concerning the signs of illness of injector problems on your Audi A7 it is about the same as for a faulty injection pump. You may possibly encounter problems with starting, throttle response, power loss, and smoke emission.
How to get rid of an injection issue on a Audi A7?
To finish our content on the injection problems on Audi A7 , we will try to give you the solutions that exist to solve these problems.
If after a precise analysis it’s your injection pump that is the main cause of your problems, it will unfortunately be very complicated 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 some diagnostics and estimates before starting any repair.
Regarding a issue with an injector there are different solutions depending on your concerns, here they are:
- Dirty injector: You can clean the injectors of your Audi A7, do not think twice to seek advice from our article on this subject to get the procedure. 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 A7, to have all the solutions available to you.
- Injector HS: Finally, last solution, your injector is broken or doesn’t work anymore, in general, the replacement of an injector costs around 500 euros labor included.
Whenever you have any additional questions about the Audi A7, do not hesitate to consult our Audi A7 category.
