It is rarely ever enjoyable to listen an injector noise on your Mercedes Benz CLA Class. It is a noise that happens repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be connected to multiple kind of complications with your automobile injectors. It may not be anything major, but when a recurrent noise happens, you have to be sure. Most importantly since repairing your Mercedes Benz CLA Class’s injectors can be expensive. That’s why our team chose to write this article content in order to help you see more clearly, learn about the different plausible failures and distinguish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Benz CLA Class, then at the plausible causes from which an injector noise may come.
Functions of the injectors
Injectors are a very vital element of the operation of your engine motor. They were brought in to the modern automobiles about 20 years ago. Before their arrival, 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 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 accumulated 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 triggers of a clicking or knocking noise coming from the injectors of your Mercedes Benz CLA Class
Discovering injector noises on your Mercedes Benz CLA Class may originate from different locations, we will now concentrate on the potential causes of these. In general, the typical 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 prevent them. If you listen another clicking noise but it is not from your injectors, we advise you to examine this article content about clicking noise on Mercedes Benz CLA Class to locate the reason.
The reasons for injector clicking or knocking noise Mercedes Benz CLA Class
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Mercedes Benz CLA Class 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 mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three features is modified, the main functionality 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 trigger thoses knocking or clicking noises on your Mercedes Benz CLA Class. The main reason of these problems in most cases originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably cause a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Mercedes Benz CLA Class, read this article content for more informations.
The effects of injector noise on Mercedes Benz CLA Class
Now that we have examined the different causes for injector noise on your Mercedes Benz CLA Class, 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 repercussions which can almost instantly become considerable….
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 common repercussions felt by drivers is a distinctive loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will almost instantly damage 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 changing your diesel fuel filter regularly>
