Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , at minimum you’ve already had that apprehension. So when you find out an alternator noise on Mercedes Classe Cls, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this article to support you find the origins of alternator sounds. In this article, you will first see the role and operation of the alternator in your Mercedes Classe Cls and then what the causes and solutions to alternator noise on Mercedes Classe Cls may be.
Role and alternator operation Mercedes Classe Cls
Alternator role
Your alternator is an vital part of your Mercedes Classe Cls. In fact, its goal is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of charging the battery once the car is in motion, to provide power to the car in motion and to let you to always have a sufficient energy source 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 concept of copper coil wound around a magnet . This coil while spinning creates electricity. It is the engine motor itself that will give the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your Mercedes Classe Cls engine stops, the battery takes over to give the car with energy.
What are the distinctive alternator noises or sounds on my Mercedes Classe Cls and what are the causes?
I notice a knocking noise caused by the alternator of my Mercedes Classe Cls
One of the characteristic noises of a tired alternator on Mercedes Classe Cls is a knocking noise. This alternator sound on Mercedes Classe Cls will most of the time appear when your engine is idling, it can be connected to voltage drops that could disrupt the normal operation of electrical components such as headlights for example. In many cases, it is a of both bearings of the alternator that is malfunctioning, to verify it, use a multimeter on the terminals of your car 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 Classe Cls is tired and you should consider swapping the bearing if it is the only reason otherwise the whole part.
I find out a grinding noise coming from the alternator of my Mercedes Classe Cls
If you are in the case where the alternator of your Mercedes Classe Cls produces grinding sounds, in this case you will have to look at it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, however , in most cases, we often notice 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 encourage that you consult this content to find all the necessary details to solve an accessory belt noise on Mercedes Classe Cls.
I find out a loud noise from the alternator of my Mercedes Classe Cls
Hearing a loud noise from the alternator of your Mercedes Classe Cls is quite common, in fact, it emits an audible sound when creating the electrical pulses it generates. It is up to you to verify that the battery indicator light on your dashboard does not show up, 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 encourage that you go to this content to find other ways to solve problem of noises from front end on Mercedes Classe Cls.
