It is never enjoyable to notice an injector noise on your Mercedes Slk. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be connected to multiple types of concerns with your car injectors. It may not be anything severe, but when a recurrent noise happens, you have to be sure. Specifically since fixing your Mercedes Slk’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 conceivable failures and establish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Slk, then at the conceivable triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very useful part of the operation of your engine unit. They were launched to the modern vehicles 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 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 compiled from the various sensors equipping the car (engine temperature, acceleration level, engine speed, etc.). Their goal 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 triggers of a clicking or knocking noise caused by the injectors of your Mercedes Slk
Experiencing injector noises on your Mercedes Slk may result from different sources, we will now concentrate on the potential triggers of these. In general, 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 put into practice to get rid of them. If you notice another clicking noise but it is not from your injectors, we recommend you to examine this article content about clicking noise on Mercedes Slk to locate the trigger.
The explanations for injector clicking or knocking noise Mercedes Slk
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Slk have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three characteristics is altered, the main role 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 provoke thoses knocking or clicking noises on your Mercedes Slk. The main trigger of these problems usually comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably end up in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Mercedes Slk, check this article content for more informations.
The side effects of injector noise on Mercedes Slk
Now that we have analyzed the different reasons for injector noise on your Mercedes Slk, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these repercussions which can quickly 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 regular consequences noticed by drivers is a serious 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 deteriorating one of your pistons or your engine. Poor combustion will quickly 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>
