Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If it never happened to you , perhaps you’ve already had that apprehension. So when you perceive an alternator noise on Mercedes Classe Glc, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this article to support you locate the origins of alternator sounds. In this article, you will first learn the role and functions of the alternator in your Mercedes Classe Glc and then what the causes and solutions to alternator noise on Mercedes Classe Glc may be.alternator-noise-mercedes-classe-glc

Role and alternator operation Mercedes Classe Glc

Alternator role

Your alternator is an fundamental part of your Mercedes Classe Glc. Indeed, its task is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the goal of recharging the battery once the vehicle is in motion, to provide power to the vehicle in motion and to let you to always have a enough energy source to be able to restart the next time.

Alternator functioning

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The alternator functions on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning creates electricity. It is the engine itself that will give the energy requested by the alternator to generate the energy, via the accessory belt or alternator belt. When your Mercedes Classe Glc engine stops, the battery takes over to give the vehicle with energy.

What are the several alternator noises or sounds on my Mercedes Classe Glc and what are the causes?

I perceive a knocking noise originating from the alternator of my Mercedes Classe Glc

One of the characteristic noises of a tired alternator on Mercedes Classe Glc is a knocking noise. This alternator sound on Mercedes Classe Glc will generally occur when your engine is idling, it can be connected to voltage drops that could disrupt the normal operation of electrical elements such as headlights for example. Most often, it is a of both bearings of the alternator that is malfunctioning, to examine it, use a multimeter on the terminals of your vehicle with the engine running and you must look for a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your Mercedes Classe Glc is tired and you should think about replacing the bearing if it is the only reason otherwise the complete part.

I perceive a grinding noise coming from the alternator of my Mercedes Classe Glc

If you are in the case where the alternator of your Mercedes Classe Glc causes grinding sounds, in this case you will have to check it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, however , in general, we generally realize by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you look for advice this content to find all the necessary information to solve an accessory belt noise on Mercedes Classe Glc.

I perceive a loud noise from the alternator of my Mercedes Classe Glc

Finding out a loud noise from the alternator of your Mercedes Classe Glc is quite normal, in fact, it produces an audible sound when creating the electrical pulses it generates. It is up to you to examine that the battery indicator light on your dashboard does not appear, and that you do not have a voltage drop when your engine is running (headlight or dashboard light that jumps for example. If this noise is too loud, we advise that you check out this content to find other ways to solve problem of noises from front end on Mercedes Classe Glc.