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, certainly you’ve already had that fear. So when you hear an alternator noise on Renault Laguna, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to write this article to support you locate the origins of alternator sounds. In this article, you will first learn the role and operation of the alternator in your Renault Laguna and then what the causes and solutions to alternator noise on Renault Laguna may be.alternator-noise-renault-laguna

Role and alternator operation Renault Laguna

Alternator role

Your alternator is an vital component of your Renault Laguna. In fact, its mission is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of recharging the battery once the automobile is in motion, to provide power to the automobile 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 works on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while rotating creates electricity. It is the engine itself that will furnish the energy needed by the alternator to create the energy, via the accessory belt or alternator belt. When your Renault Laguna engine stops, the battery takes over to furnish the automobile with energy.

What are the different alternator noises or sounds on my Renault Laguna and what are the causes?

I notice a knocking noise caused by the alternator of my Renault Laguna

One of the characteristic noises of a tired alternator on Renault Laguna is a knocking noise. This alternator sound on Renault Laguna will most of the time show up when your engine is idling, it can be linked to voltage drops that could affect the normal operation of electrical elements such as headlights for example. In most cases, it is a of both bearings of the alternator that is malfunctioning, to examine it, use a multimeter on the terminals of your automobile with the engine running and you must look for 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 Laguna is tired and you should consider replacing the bearing if it is the only reason otherwise the whole part.

I hear a grinding noise coming from the alternator of my Renault Laguna

If you are in the case where the alternator of your Renault Laguna generates grinding sounds, in this circumstance you will have to check it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, however , in general, we often 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 circumstance, we encourage that you look for advice this content to find all the necessary details to solve an accessory belt noise on Renault Laguna.

I hear a loud noise from the alternator of my Renault Laguna

Listening a loud noise from the alternator of your Renault Laguna is quite regular, 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 encourage that you have a look this content to find other ways to solve problem of noises from front end on Renault Laguna.