It is never pleasurable to listen an injector noise on your Mercedes Benz GLK. It is a noise that arises regularly, usually when you accelerate or your engine is idling. However, this warning sign may be relating to several sort of trouble with your automobile injectors. It may not be anything serious, but when a continuing noise comes out, you have to be sure. Most importantly since repairing your Mercedes Benz GLK’s injectors can be expensive. That’s why our team chose to produce this content page in order to support you see more clearly, learn about the different possible failures and identify your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Benz GLK, then at the possible triggers from which an injector noise may come.injector-noise-mercedes-benz-glk

Purposes of the injectors

Injectors are a very significant component of the operation of your engine unit. They were released to the modern vehicles about 20 years ago. Before their arrival, more conventional carburettor-type intake systems were used, 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 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 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 coming from the injectors of your Mercedes Benz GLK

Listening injector noises on your Mercedes Benz GLK may come from different locations, we will now focus on the potential causes of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be implemented to stop them. If you listen another clicking noise but it is not from your injectors, we recommend you to go through this content page about clicking noise on Mercedes Benz GLK to find the trigger.

The reasons for injector clicking or knocking noise Mercedes Benz GLK

A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Mercedes Benz GLK have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes 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 because 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 GLK. The main trigger 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 obstruction will inevitably end in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Mercedes Benz GLK, read this content page for more informations.

The end result of injector noise on Mercedes Benz GLK

Now that we have reviewed the different causes for injector noise on your Mercedes Benz GLK, 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 fairly quickly become major….
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 repercussions noticed by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will undoubtedly have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will fairly quickly 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 changing your diesel fuel filter regularly>