Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If that didn’t happen to you, certainly you’ve already had that apprehension. So when you hear an alternator noise on Mercedes Benz GLC Class, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to help you find the origins of alternator sounds. In this article, you will first see the role and operation of the alternator in your Mercedes Benz GLC Class and then what the causes and solutions to alternator noise on Mercedes Benz GLC Class may be.alternator-noise-mercedes-benz-glc-class

Role and alternator operation Mercedes Benz GLC Class

Alternator role

Your alternator is an fundamental part of your Mercedes Benz GLC Class. In fact, its mission is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the automobile is in motion, to provide power to the automobile in motion and to let you to always have a sufficient energy reserve to be able to restart the next time.

Alternator functioning

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The alternator works 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 motor itself that will give the energy required by the alternator to generate the energy, via the accessory belt or alternator belt. When your Mercedes Benz GLC Class engine stops, the battery takes over to give the automobile with energy.

What are the different alternator noises or sounds on my Mercedes Benz GLC Class and what are the causes?

I listen to a knocking noise originating from the alternator of my Mercedes Benz GLC Class

One of the characteristic noises of a tired alternator on Mercedes Benz GLC Class is a knocking noise. This alternator sound on Mercedes Benz GLC Class will most of the time occur when your engine is idling, it can be linked to voltage drops that could affect the normal operation of electrical components such as headlights for example. Most often, it is a of both bearings of the alternator that is faulty, to examine it, use a multimeter on the terminals of your automobile with the engine running and you must get a value between 12 and 14.7 volts, which means that your alternator is charging your battery well. If the value is lower, the alternator of your Mercedes Benz GLC Class is tired and you should consider changing the bearing if it is the only cause otherwise the complete part.

I hear a grinding noise coming from the alternator of my Mercedes Benz GLC Class

If you are in the case where the alternator of your Mercedes Benz GLC Class causes grinding sounds, in this case you will have to look into it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , in most cases, we often see by looking more closely that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this case, we suggest that you consult this article to find all the necessary details to solve an accessory belt noise on Mercedes Benz GLC Class.

I hear a loud noise from the alternator of my Mercedes Benz GLC Class

Listening a loud noise from the alternator of your Mercedes Benz GLC Class is quite normal, in fact, it emits an audible sound when producing 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 suggest that you look into this article to find other ways to solve problem of noises from front end on Mercedes Benz GLC Class.