It is hardly ever pleasant to acknowledge an injector noise on your Bmw Serie 5. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several kind of problems with your vehicle injectors. It may not be anything severe, but when a frequent noise arises, you have to be sure. Most importantly since repairing your Bmw Serie 5’s injectors can be expensive. That’s why our team decided to create this article content in order to support you see more clearly, learn about the different plausible failures and identify your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Bmw Serie 5, then at the plausible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very significant component of the operation of your engine. They were released to the modern cars about 20 years ago. Before their arrival, more conventional carburettor-type intake systems were employed, which handled the intake of air and fuel into the engine cylinders. With the injectors, manufacturers now have the ability, thanks to the injectors pump, to control electronically each stage of the intake process very precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their aim is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to get the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise based on the injectors of your Bmw Serie 5
Hearing injector noises on your Bmw Serie 5 may come from different origins, we will now focus on the potential triggers of these. In general, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be applied to stop them. If you acknowledge another clicking noise but it is not from your injectors, we recommend you to examine this article content about clicking noise on Bmw Serie 5 to discover the trigger.
The reasons for injector clicking or knocking noise Bmw Serie 5
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Bmw Serie 5 have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three attributes is altered, the main role of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Bmw Serie 5. The main trigger of these situations commonly comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably produce a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Bmw Serie 5, have a look at this article content for more informations.
The effects of injector noise on Bmw Serie 5
Now that we have analyzed the several causes for injector noise on your Bmw Serie 5, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these repercussions which can promptly become critical….
First, you risk destroying your exhaust unit in the long run, because the unburned fuel residues that will end up in your exhaust system can corrode the metal in it.
One of the most common repercussions experienced by drivers is a noticeable loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will undoubtedly have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will promptly damage your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks associated with your injectors and protect you from engine failure:
- Do not drive at the bottom of the tank, as you may absorb impurities
- Use quality fuel
- Think of changing your diesel fuel filter regularly>
