Having a problem with your car is basic, because regrettably recent automobiles are more and more difficult and consequently exposed to more and more possible breakdowns. On this page we’re going to try to help you to fix an injection problem on your Bmw Serie 3 . This is a problem that is especially frustrating because it can ultimately bring your vehicle to non starting or damaged engine unit. To do this, first we will discover how injection works, then, what are the different concerns that can exist on a Bmw Serie 3 injectors , and at last, how to fix them.

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What is the goal of the injection of a Bmw Serie 3?

So we begin our content by promptly detailing how an injection system works so that you have all the information you need to figure out the failures affiliated with it. < br>
The injection system of a Bmw Serie 3 manages the fuel intake into the engine unit , 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 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 Bmw Serie 3. 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 consequently a better combustion.

What are the different injection complications on Bmw Serie 3?

Now in this second part, we are going to explore the different injection complications and their symptoms that you may possibly face on your Bmw Serie 3 .

Injection pump complications Bmw Serie 3

To commence, we will discover the injection pump complications on your Bmw Serie 3, there are not many of them, they are generally persistent but we will outline 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 cause a bad air/fuel mixture and consequently a bad combustion and thus alter the performance of the engine unit of your Bmw Serie 3.
  • Leakage from the injection pump of your Bmw Serie 3: If you have a major 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 results and symptoms of a fuel pump problem on a Bmw Serie 3 , you will certainly feel, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors complications Bmw Serie 3

Now we proceed to the injector problems on Bmw Serie 3 . Injectors are the end of your injection system, here are the different complications you may possibly encounter:

  • Dirty Bmw Serie 3 injectors: This can happen due to 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 functioning properly.
  • Leaky Bmw Serie 3 injector: It’s generally at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Bmw Serie 3 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 signs of illness of injector complications on your Bmw Serie 3 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 fix an injection problem on a Bmw Serie 3?

To finish our content on the injection complications on Bmw Serie 3 , we will try to give you the solutions that exist to fix these complications.
If after a precise diagnosis it’s your injection pump that is the main cause of your complications, it will regrettably be very complicated to intervene on the problem without changing the part, 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.
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 Bmw Serie 3, do not hesitate to seek advice from our content on this subject to get the process. If it doesn’t work, you will have to change 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 have the ability to change it, do not think twice to seek advice from our content on the injectors that leak on Bmw Serie 3, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is damaged or doesn’t work anymore, generally, the replacement of an injector costs around 500 euros labor included.

If you need more guides on the Bmw Serie 3, go to our Bmw Serie 3 category.