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 , certainly you’ve already had that apprehension. So when you discover an alternator noise on Mercedes Benz CLA Class, 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 find the origins of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Mercedes Benz CLA Class and then what the causes and solutions to alternator noise on Mercedes Benz CLA Class may be.
Role and alternator operation Mercedes Benz CLA Class
Alternator role
Your alternator is an fundamental component of your Mercedes Benz CLA Class. In fact, its objective is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission 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 functions on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning generates 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 Mercedes Benz CLA Class engine stops, the battery takes over to give the car with energy.
What are the distinctive alternator noises or sounds on my Mercedes Benz CLA Class and what are the causes?
I listen to a knocking noise originating from the alternator of my Mercedes Benz CLA Class
One of the characteristic noises of a tired alternator on Mercedes Benz CLA Class is a knocking noise. This alternator sound on Mercedes Benz CLA Class will generally show up when your engine is idling, it can be connected to voltage drops that could disrupt the normal operation of electrical components such as headlights for example. In most cases, it is a of both bearings of the alternator that is faulty, to verify 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 Mercedes Benz CLA Class is tired and you should think about swapping the bearing if it is the only reason otherwise the whole part.
I discover a grinding noise coming from the alternator of my Mercedes Benz CLA Class
If you are in the case where the alternator of your Mercedes Benz CLA Class generates grinding sounds, in this circumstance you will have to look at it more seriously. This symptom can testify as for the knocking sound of a tired bearing, however , usually, we often realise by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we recommend that you consult this document to find all the necessary information to solve an accessory belt noise on Mercedes Benz CLA Class.
I discover a loud noise from the alternator of my Mercedes Benz CLA Class
Experiencing a loud noise from the alternator of your Mercedes Benz CLA Class is quite common, in fact, it produces an audible sound when producing the electrical pulses it generates. It is up to you to verify 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 recommend that you take a look at this document to find other ways to solve problem of noises from front end on Mercedes Benz CLA Class.
