It is never pleasant to experience an injector noise on your Bmw Serie 3 E92. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this warning sign may be connected to multiple types of problems with your vehicle injectors. It may not be anything major, but when a frequent noise arises, you have to be sure. Specifically since replacing your Bmw Serie 3 E92’s injectors can be expensive. That’s why our team chose to compose this content page in order to support you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Bmw Serie 3 E92, then at the plausible causes from which an injector noise may come.
Attributes of the injectors
Injectors are a very useful component of the operation of your engine unit. They were introduced to the modern vehicles about 20 years ago. Before their introduction, 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 possibility, 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 collected from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their goal is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to obtain the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise caused by the injectors of your Bmw Serie 3 E92
Hearing injector noises on your Bmw Serie 3 E92 may result from different origins, we will now look into the potential triggers of these. In most cases, 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 adopted to prevent them. If you experience another clicking noise but it is not from your injectors, we recommend you to browse this content page about clicking noise on Bmw Serie 3 E92 to find the trigger.
The reasons for injector clicking or knocking noise Bmw Serie 3 E92
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Bmw Serie 3 E92 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is altered, the main purpose of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders due to 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 3 E92. The main trigger of these concerns usually originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably cause a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Bmw Serie 3 E92, check this content page for more infos.
The repercussions of injector noise on Bmw Serie 3 E92
Now that we have analyzed the several reasons for injector noise on your Bmw Serie 3 E92, we will end by stating the possible effects 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 consequences which can fairly quickly become considerable….
First, you risk destroying your exhaust system 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 basic effects experienced by drivers is a significant loss of power. In fact, 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 fairly quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks linked to 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>
