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 , certainly you’ve already had that fear. So when you find out an alternator noise on Mercedes Classe G 3, you can already see yourself breaking down, stuck awaiting 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 G 3 and then what the causes and solutions to alternator noise on Mercedes Classe G 3 may be.
Role and alternator operation Mercedes Classe G 3
Alternator role
Your alternator is an essential part of your Mercedes Classe G 3. Indeed, 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 car is in motion, to provide power to the car 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 functions on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while rotating makes electricity. It is the engine motor 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 G 3 engine stops, the battery takes over to furnish the car with energy.
What are the distinctive alternator noises or sounds on my Mercedes Classe G 3 and what are the causes?
I perceive a knocking noise coming from the alternator of my Mercedes Classe G 3
One of the characteristic noises of a tired alternator on Mercedes Classe G 3 is a knocking noise. This alternator sound on Mercedes Classe G 3 will generally happen when your engine is idling, it can be associated with voltage drops that could disturb the normal operation of electrical parts such as headlights for example. In many cases, it is a of both bearings of the alternator that is malfunctioning, to examine 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 G 3 is tired and you should consider swapping the bearing if it is the only cause otherwise the entire part.
I find out a grinding noise coming from the alternator of my Mercedes Classe G 3
If you are in the case where the alternator of your Mercedes Classe G 3 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, but usually, we generally realise 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 advise that you read this article to find all the necessary details to solve an accessory belt noise on Mercedes Classe G 3.
I find out a loud noise from the alternator of my Mercedes Classe G 3
Experiencing a loud noise from the alternator of your Mercedes Classe G 3 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 advise that you go to this article to find other ways to solve problem of noises from front end on Mercedes Classe G 3.
