It is never relaxing to notice an injector noise on your Mercedes Benz M Class. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be related to several sort of concerns with your automobile injectors. It may not be anything serious, but when a persistent noise comes out, you have to be sure. Most importantly since fixing your Mercedes Benz M Class’s injectors can be expensive. That’s why our team chose to write this content page in order to help you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Mercedes Benz M Class, then at the plausible reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very vital part of the operation of your engine unit. They were released to the modern cars 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 ability, 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 automobile (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 reasons of a clicking or knocking noise based on the injectors of your Mercedes Benz M Class
Hearing injector noises on your Mercedes Benz M Class may originate from different origins, we will now center on the potential causes of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be implemented to prevent them. If you notice another clicking noise but it is not from your injectors, we advise you to read this content page about clicking noise on Mercedes Benz M Class to discover the reason.
The explanations for injector clicking or knocking noise Mercedes Benz M Class
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Benz M 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 objective is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is modified, the main role of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders as a consequence 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 M Class. 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 verifying, this noise comes from another part of the engine of your Mercedes Benz M Class, read this content page for more infos.
The end result of injector noise on Mercedes Benz M Class
Now that we have reviewed the different causes for injector noise on your Mercedes Benz M Class, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these consequences which can almost instantly 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 regular 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 surely have a loss of power
Finally, you risk degrading 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 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>
