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, at minimum you’ve already had that apprehension. So when you discover an alternator noise on Mercedes Benz GLK, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this article to help you locate the origins of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Mercedes Benz GLK and then what the causes and solutions to alternator noise on Mercedes Benz GLK may be.
Role and alternator operation Mercedes Benz GLK
Alternator role
Your alternator is an important part of your Mercedes Benz GLK. In fact, its task is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of recharging the battery once the vehicle is in motion, to provide power to the vehicle 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 principle of copper coil wound around a magnet . This coil while rotating creates electricity. It is the engine motor itself that will provide the energy needed by the alternator to produce the energy, via the accessory belt or alternator belt. When your Mercedes Benz GLK engine stops, the battery takes over to provide the vehicle with energy.
What are the different alternator noises or sounds on my Mercedes Benz GLK and what are the causes?
I hear a knocking noise from the alternator of my Mercedes Benz GLK
One of the typical noises of a tired alternator on Mercedes Benz GLK is a knocking noise. This alternator sound on Mercedes Benz GLK will most of the time occur 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. In most cases, it is a of both bearings of the alternator that is faulty, to examine it, use a multimeter on the terminals of your vehicle 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 Mercedes Benz GLK is tired and you should think about changing the bearing if it is the only cause otherwise the complete part.
I discover a grinding noise coming from the alternator of my Mercedes Benz GLK
If you are in the situation where the alternator of your Mercedes Benz GLK produces 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 , generally, we often see by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this circumstance, we recommend that you look for advice this document to find all the necessary details to solve an accessory belt noise on Mercedes Benz GLK.
I discover a loud noise from the alternator of my Mercedes Benz GLK
Finding out a loud noise from the alternator of your Mercedes Benz GLK is quite regular, 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 recommend that you look into this document to find other ways to solve problem of noises from front end on Mercedes Benz GLK.
