It is hardly ever pleasant to acknowledge an injector noise on your Mercedes Benz C Class. It is a noise that arises regularly, usually when you accelerate or your engine is idling. However, this warning sign may be linked to multiple sort of complications with your car injectors. It may not be anything severe, but when a continuing noise comes out, you have to be sure. Specifically since fixing your Mercedes Benz C Class’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 conceivable failures and distinguish your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Mercedes Benz C Class, then at the conceivable triggers from which an injector noise may come.injector-noise-mercedes-benz-c-class

Attributes of the injectors

Injectors are a very significant element of the operation of your engine. They were launched to the modern cars 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 obtained 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 Benz C Class

Experiencing injector noises on your Mercedes Benz C Class may come from different locations, we will now look into 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 put into practice to stop them. If you acknowledge another clicking noise but it is not from your injectors, we recommend you to examine this content page about clicking noise on Mercedes Benz C Class to locate the trigger.

The explanations for injector clicking or knocking noise Mercedes Benz C Class

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Benz C Class 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 mission is to deal with 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 modified, the main role of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because 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 C Class. The main trigger of these problems generally comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably result in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Mercedes Benz C Class, have a look at this content page for more infos.

The effects of injector noise on Mercedes Benz C Class

Now that we have reviewed the diverse reasons for injector noise on your Mercedes Benz C Class, we will end by stating the possible effects 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 quickly become considerable….
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 basic effects noticed by drivers is a noticeable 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 damage 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>