Having a problem with your motor vehicle is basic, because unfortunately recent automobiles are more and more complex and consequently at the mercy of more and more possible breakdowns. Today we’re going to try to help you to solve an injection problem on your BMW 4 Series . This is a problem that is especially annoying because it can eventually bring your car to non starting or damaged engine. To do this, first we will discover how injection functions, then, what are the different problems that can exist on a BMW 4 Series injectors , and finally, how to solve them.

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What is the goal of the injection of a BMW 4 Series?

So we start our content page by quickly explaining how an injection system functions so that you have all the information you need to discover the failure affiliated with it. < br>
The injection system of a BMW 4 Series manages the fuel intake into the engine , it replaces the old carburettors. It has the advantage to be a lot 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 BMW 4 Series. 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 complications on BMW 4 Series?

Now in this second component, we are going to see the different injection complications and their manifestations that you may face on your BMW 4 Series .

Injection pump complications BMW 4 Series

To commence, we will discover the injection pump complications on your BMW 4 Series, there are not many of them, they are quite often chronic but we will detail them 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 BMW 4 Series.
  • Leakage from the injection pump of your BMW 4 Series: 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 consequences and manifestations of a fuel pump problem on a BMW 4 Series , you will obviously experience, a lack of power, your engine grazing, dark smoke emissions…

Injectors complications BMW 4 Series

Now we move on to the injector problems on BMW 4 Series . Injectors are the end of your injection system, here are the different complications you may encounter:

  • Dirty BMW 4 Series injectors: This can happen as a result of poor fuel quality, they will let less fuel through or more if they are totally clogged. So you will probably have one or more cylinders that are not functioning effectively.
  • Leaky BMW 4 Series 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 BMW 4 Series HS: This is the case when your injectors are totally 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 4 Series it is about the same as for a faulty injection pump. You may experience problems with starting, throttle response, power loss, and smoke emission.

How to fix an injection problem on a BMW 4 Series?

To conclude our article on the injection complications on BMW 4 Series , we will try to give you the solutions that exist to solve these complications.
If after a precise analysis it’s your injection pump that is the cause of your complications, it will unfortunately be very difficult to intervene on the trouble without changing 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.
Concerning 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 BMW 4 Series, do not be reluctant to consult our content page 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 hesitate to consult our content page on the injectors that leak on BMW 4 Series, to have all the solutions available to you.
  • Injector HS: Finally, last remedy, your injector is broken or doesn’t work anymore, in general, the replacement of an injector costs around 500 euros labor included.

To discover more tips on the BMW 4 Series, take a look at the BMW 4 Series category.