It is hardly ever relaxing to perceive an injector noise on your Mercedes Classe V. 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 concerns with your automobile injectors. It may not be anything severe, but when a frequent noise comes out, you have to be sure. Most importantly since repairing your Mercedes Classe V’s injectors can be expensive. That’s why our team decided to prepare this article in order to support you see more clearly, learn about the different possible failures and distinguish your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Classe V, then at the possible reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very fundamental element of the operation of your engine unit. They were brought in 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 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 collected 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 triggers of a clicking or knocking noise based on the injectors of your Mercedes Classe V
Listening injector noises on your Mercedes Classe V may come from different locations, we will now focus on the potential causes of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be used to stop them. If you perceive another clicking noise but it is not from your injectors, we recommend you to read this article about clicking noise on Mercedes Classe V to find the reason.
The causes for injector clicking or knocking noise Mercedes Classe V
A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Mercedes Classe V have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Mercedes Classe V. The main reason of these concerns usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Mercedes Classe V, read this article for more infos.
The end result of injector noise on Mercedes Classe V
Now that we have examined the different reasons for injector noise on your Mercedes Classe V, we will end by stating the possible consequences 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 effects which can fairly quickly become critical….
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 known consequences 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 undoubtedly 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 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 swapping your diesel fuel filter regularly>
