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 , perhaps you’ve already had that fear. So when you hear an alternator noise on Mercedes Classe C 4, you can already see yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this post to support you locate the origins of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Mercedes Classe C 4 and then what the causes and solutions to alternator noise on Mercedes Classe C 4 may be.
Role and alternator operation Mercedes Classe C 4
Alternator role
Your alternator is an fundamental part of your Mercedes Classe C 4. Indeed, its task is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the vehicle is in motion, to provide power to the vehicle 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 rotating creates electricity. It is the engine itself that will give the energy needed by the alternator to generate the energy, via the accessory belt or alternator belt. When your Mercedes Classe C 4 engine stops, the battery takes over to give the vehicle with energy.
What are the distinctive alternator noises or sounds on my Mercedes Classe C 4 and what are the causes?
I hear a knocking noise from the alternator of my Mercedes Classe C 4
One of the characteristic noises of a tired alternator on Mercedes Classe C 4 is a knocking noise. This alternator sound on Mercedes Classe C 4 will most of the time appear when your engine is idling, it can be associated with 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 vehicle 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 C 4 is tired and you should consider swapping the bearing if it is the only cause otherwise the whole part.
I hear a grinding noise coming from the alternator of my Mercedes Classe C 4
If you are in the situation where the alternator of your Mercedes Classe C 4 causes grinding sounds, in this circumstance you will have to check it more seriously. This symptom can testify as for the knocking sound of a tired bearing, however , usually, we generally notice by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this circumstance, we encourage that you look for advice this document to find all the necessary details to solve an accessory belt noise on Mercedes Classe C 4.
I hear a loud noise from the alternator of my Mercedes Classe C 4
Finding out a loud noise from the alternator of your Mercedes Classe C 4 is quite common, 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 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 document to find other ways to solve problem of noises from front end on Mercedes Classe C 4.
