It is never pleasant to listen to an injector noise on your Bmw Serie 3 E93. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this indicator may be relating to multiple types of complications with your vehicle injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Specifically since replacing your Bmw Serie 3 E93’s injectors can be expensive. That’s why our team chose to create this content page in order to help you see more clearly, learn about the different possible failures and determine your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Bmw Serie 3 E93, then at the possible triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very vital element of the operation of your engine unit. They were introduced 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 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 origins of a clicking or knocking noise coming from the injectors of your Bmw Serie 3 E93
Listening injector noises on your Bmw Serie 3 E93 may result from different origins, we will now focus on the potential triggers of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be put into practice to eliminate them. If you listen to another clicking noise but it is not from your injectors, we recommend you to read this content page about clicking noise on Bmw Serie 3 E93 to find the reason.
The reasons for injector clicking or knocking noise Bmw Serie 3 E93
A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Bmw Serie 3 E93 have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three characteristics 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 as a consequence of 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 E93. The main reason of these trouble generally comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably produce a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Bmw Serie 3 E93, check this content page for more informations.
The end result of injector noise on Bmw Serie 3 E93
Now that we have reviewed the several causes for injector noise on your Bmw Serie 3 E93, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these repercussions which can almost instantly become severe….
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 known repercussions felt by drivers is a distinctive loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will almost instantly damage your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks relating 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>
