It is rarely ever enjoyable to experience an injector noise on your Mercedes Classe S. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this warning sign may be related to several kind of complications with your vehicle injectors. It may not be anything major, but when a repeated noise arises, you have to be sure. Most importantly since fixing your Mercedes Classe S’s injectors can be costly. That’s why our team chose to compose this article content in order to support you see more clearly, learn about the different plausible failures and establish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Classe S, then at the plausible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very vital part of the operation of your engine unit. They were launched to the modern vehicles about 20 years ago. Before their appearance, 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 possibility, 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 received from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 S
Discovering injector noises on your Mercedes Classe S may result from different locations, we will now center on the potential triggers of these. In most cases, the common noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be used to prevent them. If you experience another clicking noise but it is not from your injectors, we advise you to examine this article content about clicking noise on Mercedes Classe S to discover the trigger.
The explanations for injector clicking or knocking noise Mercedes Classe S
A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Mercedes Classe S 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 task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three functions is altered, the main purpose of the injectors will be disrupted 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 S. The main trigger of these trouble in most cases 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 S, have a look at this article content for more infos.
The consequences of injector noise on Mercedes Classe S
Now that we have analyzed the several reasons for injector noise on your Mercedes Classe S, we will end by stating the possible side effects 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 effects which can promptly 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 basic effects experienced by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will promptly damage your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks linked 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>
