It is never pleasant to listen to an injector noise on your Mercedes Benz GLE Class. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this indicator may be relating to different sort of trouble with your automobile injectors. It may not be anything severe, but when a persistent noise appears, you have to be sure. Especially since fixing your Mercedes Benz GLE Class’s injectors can be expensive. That’s why our team decided to create this content in order to support you see more clearly, learn about the different possible failures and determine your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Mercedes Benz GLE Class, then at the possible causes from which an injector noise may come.injector-noise-mercedes-benz-gle-class

Attributes of the injectors

Injectors are a very important part of the operation of your engine. They were launched to the modern automobiles 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 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 accumulated from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their objective 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 based on the injectors of your Mercedes Benz GLE Class

Listening injector noises on your Mercedes Benz GLE Class may result from different origins, we will now look into the potential causes of these. Generally, 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 implemented to eliminate them. If you listen to another clicking noise but it is not from your injectors, we suggest you to examine this content about clicking noise on Mercedes Benz GLE Class to discover the cause.

The causes for injector clicking or knocking noise Mercedes Benz GLE Class

A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Mercedes Benz GLE Class 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 task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three characteristics is altered, the main functionality 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 induce thoses knocking or clicking noises on your Mercedes Benz GLE Class. The main cause of these problems usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Mercedes Benz GLE Class, read this content for more infos.

The repercussions of injector noise on Mercedes Benz GLE Class

Now that we have reviewed the different reasons for injector noise on your Mercedes Benz GLE Class, 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 quickly become severe….
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 repercussions felt by drivers is a serious 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 quickly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>