It is never pleasurable to acknowledge an injector noise on your Mercedes Classe G 3. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this sign may be linked to different types of concerns with your automobile injectors. It may not be anything major, but when a recurrent noise happens, you have to be sure. Especially since replacing your Mercedes Classe G 3’s injectors can be expensive. 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 establish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Classe G 3, then at the conceivable triggers from which an injector noise may come.injector-noise-mercedes-classe-g-3

Attributes of the injectors

Injectors are a very important element of the operation of your engine motor. They were introduced to the modern vehicles 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 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 obtained 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 causes of a clicking or knocking noise coming from the injectors of your Mercedes Classe G 3

Listening injector noises on your Mercedes Classe G 3 may result from different sources, 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 several sources of these noises and the solutions to be used to get rid of them. If you acknowledge another clicking noise but it is not from your injectors, we encourage you to go through this content about clicking noise on Mercedes Classe G 3 to discover the cause.

The causes for injector clicking or knocking noise Mercedes Classe G 3

A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Mercedes Classe G 3 have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three functions 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 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 G 3. The main cause of these situations 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 end up in a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Mercedes Classe G 3, read this content for more infos.

The repercussions of injector noise on Mercedes Classe G 3

Now that we have examined the different reasons for injector noise on your Mercedes Classe G 3, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these repercussions which can fairly quickly become major….
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 common repercussions felt 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 deteriorating 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 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>