Having a problem with your car is traditional, because sadly recent automobiles are more and more difficult and consequently at the mercy of more and more possible breakdowns. On this page we’re going to try to help you to solve an injection problem on your Mercedes Classe A . This is a problem that is specially bothersome because it can eventually bring your car to non starting or broken engine unit. To do this, first we will see how injection functions, then, what are the different concerns that can exist on a Mercedes Classe A injectors , and at last, how to solve them.

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What is the purpose of the injection of a Mercedes Classe A?

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

What are the different injection problems on Mercedes Classe A?

Now in this second component, we are going to discover the different injection problems and their manifestations that you may possibly confront on your Mercedes Classe A .

Injection pump problems Mercedes Classe A

To commence, we will see the injection pump problems on your Mercedes Classe A, there are not many of them, they are quite often persistent 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 might be too high or too low which will bring about a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine unit of your Mercedes Classe A.
  • Leakage from the injection pump of your Mercedes Classe A: 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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Regarding the consequences and manifestations of a fuel pump problem on a Mercedes Classe A , you will undoubtedly experience, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors problems Mercedes Classe A

Now we proceed to the injector problems on Mercedes Classe A . Injectors are the end of your injection system, here are the different problems you may possibly encounter:

  • Dirty Mercedes Classe A injectors: This can happen due to poor fuel quality, they will let less fuel through or more if they are completely clogged. So you will probably have one or more cylinders that are not working properly.
  • Leaky Mercedes Classe A injector: It’s quite often at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Mercedes Classe A HS: This is the circumstance when your injectors are completely clogged or when you have an electronic problem, it will not let anything go.

Concerning the symptoms of injector problems on your Mercedes Classe A 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 problem on a Mercedes Classe A?

To end our content on the injection problems on Mercedes Classe A , we will try to give you the solutions that exist to solve these problems.
If after a precise investigation it’s your injection pump that is the cause of your problems, it will sadly be very complicated to intervene on the issue without replacing the component, this change quite often goes with the replacement of the injectors, and in some cases the tank, it will take between 2000 and 3000 euros for the whole, try to get several diagnostics and estimates before starting any repair.
Regarding a problem with an injector there are various solutions depending on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Mercedes Classe A, do not hesitate 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 replace and the purchase of a joint kit will only cost you a few tens of euros, but you still need to have the ability to replace it, do not think twice to seek advice from our article on the injectors that leak on Mercedes Classe A, to have all the solutions available to you.
  • Injector HS: Finally, last remedy, your injector is broken or doesn’t work anymore, generally speaking, the replacement of an injector costs around 500 euros labor included.

If you have any further questions about the Mercedes Classe A, do not hesitate to consult our Mercedes Classe A category.