It is hardly ever pleasurable to perceive an injector noise on your Mercedes Classe C 2. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this indication may be linked to different kind of problems with your car injectors. It may not be anything serious, but when a continuing noise appears, you have to be sure. Specifically since repairing your Mercedes Classe C 2’s injectors can be costly. That’s why our team decided to create this article content in order to help you see more clearly, learn about the different conceivable failures and determine your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Classe C 2, then at the conceivable triggers from which an injector noise may come.injector-noise-mercedes-classe-c-2

Purposes of the injectors

Injectors are a very useful element of the operation of your engine. They were brought in to the modern vehicles about 20 years ago. Before their arrival, 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 received from the various sensors equipping the car (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 Classe C 2

Listening injector noises on your Mercedes Classe C 2 may result from different origins, we will now center on 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 put into practice to prevent them. If you perceive another clicking noise but it is not from your injectors, we advise you to go through this article content about clicking noise on Mercedes Classe C 2 to discover the cause.

The explanations for injector clicking or knocking noise Mercedes Classe C 2

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Classe C 2 have three main missions, to manage 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 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 C 2. The main cause of these trouble in most cases originates from a particle that gets into the injectors. The accuracy 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 component of the engine of your Mercedes Classe C 2, check this article content for more informations.

The consequences of injector noise on Mercedes Classe C 2

Now that we have examined the several reasons for injector noise on your Mercedes Classe C 2, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these effects 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 common effects experienced by drivers is a severe 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 deteriorating 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 connected 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>