It is hardly ever pleasant to listen to an injector noise on your Mercedes Classe C. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this sign may be related to several kind of concerns with your automobile injectors. It may not be anything major, but when a repeated noise comes out, you have to be sure. Specifically since fixing your Mercedes Classe C’s injectors can be costly. That’s why our team chose to create this article in order to help you see more clearly, learn about the different possible failures and distinguish your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Classe C, then at the possible causes from which an injector noise may come.
Purposes of the injectors
Injectors are a very useful component of the operation of your engine unit. They were launched to the modern cars 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 compiled from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their aim 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 origins of a clicking or knocking noise based on the injectors of your Mercedes Classe C
Experiencing injector noises on your Mercedes Classe C may come from different sources, we will now look into the potential causes of these. Generally, the usual 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 stop them. If you listen to another clicking noise but it is not from your injectors, we recommend you to browse this article about clicking noise on Mercedes Classe C to find the cause.
The explanations for injector clicking or knocking noise Mercedes Classe C
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Classe C have three main missions, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its goal 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 characteristics is altered, the main purpose of the injectors will be disturbed 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 trigger thoses knocking or clicking noises on your Mercedes Classe C. The main cause of these concerns commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Mercedes Classe C, browse this article for more informations.
The consequences of injector noise on Mercedes Classe C
Now that we have reviewed the several causes for injector noise on your Mercedes Classe C, 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 repercussions which can almost instantly become serious….
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 known effects noticed by drivers is a significant 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 almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>
