Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, perhaps you’ve already had that fear. So when you listen to an alternator noise on Mercedes Classe C, you can already see yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this content to help you find the origins of alternator sounds. In this article, you will first see the role and functions of the alternator in your Mercedes Classe C and then what the causes and solutions to alternator noise on Mercedes Classe C may be.
Role and alternator operation Mercedes Classe C
Alternator role
Your alternator is an fundamental part of your Mercedes Classe C. Indeed, its objective is to generate 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 allow 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 concept of copper coil wound around a magnet . This coil while rotating generates electricity. It is the engine itself that will furnish the energy needed by the alternator to produce the energy, via the accessory belt or alternator belt. When your Mercedes Classe C engine stops, the battery takes over to furnish the vehicle with energy.
What are the different alternator noises or sounds on my Mercedes Classe C and what are the causes?
I discover a knocking noise from the alternator of my Mercedes Classe C
One of the characteristic noises of a tired alternator on Mercedes Classe C is a knocking noise. This alternator sound on Mercedes Classe C will most of the time happen when your engine is idling, it can be associated with voltage drops that could affect the normal operation of electrical elements such as headlights for example. 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 recharging your battery well. If the value is lower, the alternator of your Mercedes Classe C is tired and you should think about changing the bearing if it is the only reason otherwise the whole part.
I listen to a grinding noise coming from the alternator of my Mercedes Classe C
If you are in the situation where the alternator of your Mercedes Classe C causes 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 , generally, we generally realise by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we suggest that you read this content to find all the necessary details to solve an accessory belt noise on Mercedes Classe C.
I listen to a loud noise from the alternator of my Mercedes Classe C
Finding out a loud noise from the alternator of your Mercedes Classe C is quite normal, in fact, it produces 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 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 suggest that you check out this content to find other ways to solve problem of noises from front end on Mercedes Classe C.
