Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If that didn’t happen to you, perhaps you’ve already had that fear. So when you notice an alternator noise on Renault Megane 2, you can already see yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this post 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 Renault Megane 2 and then what the causes and solutions to alternator noise on Renault Megane 2 may be.
Role and alternator operation Renault Megane 2
Alternator role
Your alternator is an important part of your Renault Megane 2. Indeed, its goal 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 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 operates on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning produces electricity. It is the engine itself that will give the energy needed by the alternator to produce the energy, via the accessory belt or alternator belt. When your Renault Megane 2 engine stops, the battery takes over to give the car with energy.
What are the several alternator noises or sounds on my Renault Megane 2 and what are the causes?
I notice a knocking noise coming from the alternator of my Renault Megane 2
One of the typical noises of a tired alternator on Renault Megane 2 is a knocking noise. This alternator sound on Renault Megane 2 will generally appear when your engine is idling, it can be associated with voltage drops that could disturb 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 car with the engine running and you must obtain 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 Renault Megane 2 is tired and you should think about changing the bearing if it is the only cause otherwise the whole part.
I notice a grinding noise coming from the alternator of my Renault Megane 2
If you are in the situation where the alternator of your Renault Megane 2 generates grinding sounds, in this case you will have to look at it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , generally, we often 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 case, we recommend that you read this article to find all the necessary details to solve an accessory belt noise on Renault Megane 2.
I notice a loud noise from the alternator of my Renault Megane 2
Experiencing a loud noise from the alternator of your Renault Megane 2 is quite regular, 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 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 recommend that you go to this article to find other ways to solve problem of noises from front end on Renault Megane 2.
