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 , at least you’ve already had that apprehension. So when you notice an alternator noise on Opel Mokka X, you can already imagine yourself breaking down, stuck waiting for 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 learn the role and operation of the alternator in your Opel Mokka X and then what the causes and solutions to alternator noise on Opel Mokka X may be.alternator-noise-opel-mokka-x

Role and alternator operation Opel Mokka X

Alternator role

Your alternator is an fundamental part of your Opel Mokka X. Indeed, 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 car is in motion, to provide power to the car in motion and to allow 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 itself that will give the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your Opel Mokka X engine stops, the battery takes over to give the car with energy.

What are the several alternator noises or sounds on my Opel Mokka X and what are the causes?

I discover a knocking noise coming from the alternator of my Opel Mokka X

One of the characteristic noises of a tired alternator on Opel Mokka X is a knocking noise. This alternator sound on Opel Mokka X will most of the time appear when your engine is idling, it can be associated with voltage drops that could affect the normal operation of electrical components such as headlights for example. Often, it is a of both bearings of the alternator that is malfunctioning, to check it, use a multimeter on the terminals of your car 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 Opel Mokka X is tired and you should think about replacing the bearing if it is the only reason otherwise the whole part.

I notice a grinding noise coming from the alternator of my Opel Mokka X

If you are in the case where the alternator of your Opel Mokka X causes grinding sounds, in this case you will have to check it more seriously. This symptom can testify as for the knocking sound of a tired bearing, however , usually, we often see by looking more closely that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we suggest that you consult this article to find all the necessary details to solve an accessory belt noise on Opel Mokka X.

I notice a loud noise from the alternator of my Opel Mokka X

Experiencing a loud noise from the alternator of your Opel Mokka X is quite regular, in fact, it emits an audible sound when creating the electrical pulses it generates. It is up to you to check 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 suggest that you read this article to find other ways to solve problem of noises from front end on Opel Mokka X.