It may not be unknown to you, but the alternator is a crucial element within an engine. He is responsible for changing energy of the engine block of your smart roadster in Electricity supply in order to recharge the battery. In the specific case where there is a problem, it could therefore mainly cause electrical failures. It is therefore essential to deal with it. Only, the problem could also arise from its belt, sometimes pulleys. We are going to see thanks to this text where the problems related to noise that you hear.
Alternator belt noise on a smart roadster
La alternator belt, also known as an accessory belt, turns out to be the capital element which contributes to the good action of the alternator. It is it which via its convolution drives the alternator and will make it possible to create electricity. However, it also serves to rotate different pumps of the engine block. In the event that it breaks, the latter could cause damages rather important within the engine of the smart roadster.
A metallic noise on the smart roadster:
It's a noise that usually comes Cold. The most common cause is that the streaks in the belt turn out to be damaged. However, this can also occur when the pulley is very slightly offset. If the belt breaks down, it could of course break. If you ever identify this sound, the best thing to do is to replace the belt and the problem will be almost completely eliminated.
A sharp screech on the smart roadster:
Indeed, it is the most recurrent dysfunction, but also the least dramatic. It often comes cold, but sometimes even comes back hot sometimes. However, it stops instantly. This noise usually comes when the accessory belt is not tight enough. All you need is tender and voila. Be careful, when it remains in this situation for a long time, the belt could be damaged and cause more serious concern over time. This sharp squeak also occurs sometimes when the damper pulley happens to be deteriorated, but this is less common.
A slight hiss or breath on the smart roadster:
It is the opposite of the dysfunction of the last example. The belt is likely to be excessively tight or too small. You can imagine what you have to do!
Alternator noise on a smart roadster
Assumed that it is really the alternator that makes the sound and not the belt, therefore the malfunctions are completely different. However, the sound you hear may resemble that of a strap, so a high hiss. The concern will sometimes come from a electrical failure, it's pretty ordinary. If ever voltage essential to the good activity of the smart roadster is low, it usually shows during a lack of intensity of the lights or lights in the vehicle. If the lack of intensity is out of the ordinary, it is possible that the battery indicator stay on. In order to achieve a good diagnostic of your concern, it is quite feasible to use a voltmeter so take the tension via the + and - of its battery, with the engine running of course. If the voltage turns out to be lower than that recommended on the battery, the problem will consequently come from the alternator. So, it usually needs to be replaced.
Conclusion:
A new alternator sound usually comes from the alternator belt, but sometimes will also come from the alternator itself. Economically, the alternator belt is relatively cheaper than the alternator. Have a costing done at a mechanic rather than embarking on repairs, as there is no way of knowing where the problem is coming from. We hope that this guide has been useful to you, if it is the case do not hesitate to write a comment. Enjoy the road with your smart roadster.