It is rarely ever enjoyable to experience an injector noise on your Mercedes Classe A 3. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this indicator may be connected to different sort of problems with your vehicle injectors. It may not be anything major, but when a frequent noise shows up, you have to be sure. Specifically since replacing your Mercedes Classe A 3’s injectors can be costly. That’s why our team chose to compose this content in order to support you see more clearly, learn about the different conceivable failures and determine your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Classe A 3, then at the conceivable causes from which an injector noise may come.
Functions of the injectors
Injectors are a very vital component of the operation of your engine motor. They were brought in to the modern vehicles about 20 years ago. Before their introduction, more conventional carburettor-type intake systems were used, which handled the intake of air and fuel into the engine cylinders. With the injectors, manufacturers now have the opportunity, 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 origins of a clicking or knocking noise caused by the injectors of your Mercedes Classe A 3
Experiencing injector noises on your Mercedes Classe A 3 may originate from different origins, we will now focus on the potential causes of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be applied to prevent them. If you experience another clicking noise but it is not from your injectors, we encourage you to examine this content about clicking noise on Mercedes Classe A 3 to locate the reason.
The causes for injector clicking or knocking noise Mercedes Classe A 3
A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Mercedes Classe A 3 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 objective is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three functions is modified, the main purpose 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 induce thoses knocking or clicking noises on your Mercedes Classe A 3. The main reason of these trouble generally originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Mercedes Classe A 3, check this content for more informations.
The repercussions of injector noise on Mercedes Classe A 3
Now that we have examined the different causes for injector noise on your Mercedes Classe A 3, we will end by stating the possible effects of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these consequences which can fairly quickly become major….
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 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 affect 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>
