It is rarely ever pleasant to experience an injector noise on your Mercedes Sprinter. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this warning sign may be relating to different types of complications with your car injectors. It may not be anything serious, but when a recurrent noise arises, you have to be sure. Most importantly since repairing your Mercedes Sprinter’s injectors can be costly. That’s why our team decided to produce this article content in order to help you see more clearly, learn about the different conceivable failures and distinguish your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Mercedes Sprinter, then at the conceivable reasons from which an injector noise may come.injector-noise-mercedes-sprinter

Purposes of the injectors

Injectors are a very useful component of the operation of your engine motor. They were brought in to the modern automobiles 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 opportunity, 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 purpose 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 origins of a clicking or knocking noise coming from the injectors of your Mercedes Sprinter

Experiencing injector noises on your Mercedes Sprinter may come from different sources, we will now look into the potential triggers of these. In general, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be put into practice to stop them. If you experience another clicking noise but it is not from your injectors, we encourage you to examine this article content about clicking noise on Mercedes Sprinter to locate the reason.

The reasons for injector clicking or knocking noise Mercedes Sprinter

A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Mercedes Sprinter have three main tasks, 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 finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes is altered, 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Mercedes Sprinter. The main reason 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 obstruction will inevitably end up in a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Mercedes Sprinter, read this article content for more informations.

The consequences of injector noise on Mercedes Sprinter

Now that we have reviewed the diverse causes for injector noise on your Mercedes Sprinter, we will end by stating the possible end result 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 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 basic repercussions felt by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks connected 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>