It is hardly ever pleasant to listen an injector noise on your Mercedes Classe E 5. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this sign may be relating to different kind of trouble with your vehicle injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Most importantly since fixing your Mercedes Classe E 5’s injectors can be costly. That’s why our team decided to prepare this content page in order to support you see more clearly, learn about the different plausible failures and establish your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Classe E 5, then at the plausible triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very fundamental component of the operation of your engine motor. They were brought in to the modern automobiles about 20 years ago. Before their appearance, 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 possibility, thanks to the injectors pump, to control electronically each stage of the intake process very accurately (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 get the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise coming from the injectors of your Mercedes Classe E 5
Experiencing injector noises on your Mercedes Classe E 5 may originate from different locations, we will now concentrate on the potential causes of these. In general, the typical noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be implemented to eliminate them. If you listen another clicking noise but it is not from your injectors, we recommend you to browse this content page about clicking noise on Mercedes Classe E 5 to locate the trigger.
The reasons for injector clicking or knocking noise Mercedes Classe E 5
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Mercedes Classe E 5 have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease 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 tasks is modified, the main role 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 Mercedes Classe E 5. The main trigger of these trouble in most cases comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably produce a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Mercedes Classe E 5, have a look at this content page for more informations.
The side effects of injector noise on Mercedes Classe E 5
Now that we have reviewed the different reasons for injector noise on your Mercedes Classe E 5, we will end by stating the possible end result 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 serious….
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 known consequences noticed by drivers is a significant loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will inevitably have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will fairly quickly harm 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>
