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 , at least you’ve already had that apprehension. So when you find out an alternator noise on Renault Koleos, 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 support you locate the sources of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Renault Koleos and then what the causes and solutions to alternator noise on Renault Koleos may be.alternator-noise-renault-koleos

Role and alternator operation Renault Koleos

Alternator role

Your alternator is an essential component of your Renault Koleos. In fact, its goal 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 enough 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 concept of copper coil wound around a magnet . This coil while rotating makes electricity. It is the engine motor itself that will furnish the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your Renault Koleos engine stops, the battery takes over to furnish the automobile with energy.

What are the distinctive alternator noises or sounds on my Renault Koleos and what are the causes?

I find out a knocking noise caused by the alternator of my Renault Koleos

One of the characteristic noises of a tired alternator on Renault Koleos is a knocking noise. This alternator sound on Renault Koleos will most of the time appear when your engine is idling, it can be connected to voltage drops that could disturb the normal operation of electrical elements such as headlights for example. In general, it is a of both bearings of the alternator that is defective, to examine it, use a multimeter on the terminals of your automobile 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 Renault Koleos is tired and you should consider replacing the bearing if it is the only reason otherwise the entire part.

I find out a grinding noise coming from the alternator of my Renault Koleos

If you are in the case where the alternator of your Renault Koleos generates grinding sounds, in this case you will have to check it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , usually, we often realise by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you read this content to find all the necessary information to solve an accessory belt noise on Renault Koleos.

I find out a loud noise from the alternator of my Renault Koleos

Hearing a loud noise from the alternator of your Renault Koleos is quite common, in fact, it emits 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 have a look this content to find other ways to solve problem of noises from front end on Renault Koleos.