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 find out an alternator noise on Mercedes Benz GLS Class, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this content 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 GLS Class and then what the causes and solutions to alternator noise on Mercedes Benz GLS Class may be.
Role and alternator operation Mercedes Benz GLS Class
Alternator role
Your alternator is an important part of your Mercedes Benz GLS Class. Indeed, its task 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 let you to always have a enough 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 concept of copper coil wound around a magnet . This coil while spinning generates electricity. It is the engine motor itself that will provide the energy requested by the alternator to generate the energy, via the accessory belt or alternator belt. When your Mercedes Benz GLS Class engine stops, the battery takes over to provide the vehicle with energy.
What are the different alternator noises or sounds on my Mercedes Benz GLS Class and what are the causes?
I discover a knocking noise from the alternator of my Mercedes Benz GLS Class
One of the characteristic noises of a tired alternator on Mercedes Benz GLS Class is a knocking noise. This alternator sound on Mercedes Benz GLS Class will generally occur when your engine is idling, it can be associated with voltage drops that could disrupt 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 verify 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 Benz GLS Class is tired and you should consider changing 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 Benz GLS Class
If you are in the case where the alternator of your Mercedes Benz GLS Class generates grinding sounds, in this circumstance you will have to look at it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , in general, we generally realize by looking more closely that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we encourage that you look for advice this content to find all the necessary details to solve an accessory belt noise on Mercedes Benz GLS Class.
I find out a loud noise from the alternator of my Mercedes Benz GLS Class
Listening a loud noise from the alternator of your Mercedes Benz GLS Class is quite regular, 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 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 encourage that you read this content to find other ways to solve problem of noises from front end on Mercedes Benz GLS Class.
