It is never pleasurable to perceive a noise from your car you don’t know where from. So what if you discover a serpentine belt noise that lasts on your Mercedes Classe A 3? It is extremely conceivable that this is a minimal issue, but before being sure, it is better to execute some verifications. If this belt noise comes from your serpentine or driving belt, our team has written a document to support you finding and correcting it. First, we will look at the serpentine belt noises on your Mercedes Classe A 3 and then we will look at the sources of these sounds.
I encounter noises from serpentine belt Mercedes Classe A 3
The best technique to check the state of your belts is to listen to your car. As soon as you perceive sounds such as squealing or bells, you should take a closer look to check their source. The job of the serpentine belt or driving belt of your Mercedes Classe A 3 is to transfer the movement of the engine to the secondary elements that it will supply with energy. Like steering, air conditioning, water pump. Its role is therefore essential in the normal general performance of your car. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the ability to drive distinctive engine elements at variable speeds.
I perceive squealing noises on my serpentine belt Mercedes Classe A 3
This kind of squealing belt noises on Mercedes Classe A 3, which will often be acute, can mostly happen when the engine is cold, or when the acceleration increases in intensity. . This kind of sound must be significant and it is obviously quite simple to connect it with one of these belts. To check, do not hesitate to open your bonnet, engine running cold and check the source of this noise, the serpentine or driving belt being apparent, it should not be too difficult for you to spot a belt noise on your Mercedes Classe A 3. The reason of this issue can be in connection with the damper pulley, which operates as a damper to reduce irregularities in the tension in the motor cycle and therefore in the energy transmission to the belt. This results in a loose belt that will jerk. However, you still have the opportunity that this phenomenon is annodine. As the serpentine belt of your Mercedes Classe A 3 is exposed, it may squeak due to excessive humidity due to weather conditions and it may stop with a change in conditions. Keep in mind to check the state of your belt (crack, crack), if this is the case replace it, otherwise simply tighten the belt.
I perceive loud serpentine or driving belt noises Mercedes Classe A 3
Just like squealing, a driving belt noise on your Mercedes Classe A 3 that sounds like a loud grinding sound can express a lot about its state. It is therefore imperative that you look further and locate the reason for this sound that can signal the end of your belt’s life. Like squealing noise, it can be identified in most cases when cold . It generally means a worn pulley whose streaks no longer allow it to be driven correctly. Other possibilities, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the source of this issue. Remember to check first the serpentine/driving belt which in most cases is the reason of this issue, otherwise it will be necessary to replace the tensioner or pulley.
I perceive bearing noises on the serpentine belt of my Mercedes Classe A 3
Finally, if in your case you discern a bearing belt noise on Mercedes Classe A 3, it is conceivable that it is in connection with a serpentine belt that is too tight . Indeed, it is conceivable that its size may be smaller than recommended and cause the entire system to overvoltage, resulting in this whistling noise or slight rolling noise. The problem in this case is that the bearing bearings or the Damper pulley may fail . Remember, therefore, to stretch the belt to limit the risks or to swap it if it is too short. If after checking all thoses possibilities, you still perceive a belt noises, read our article about timing belt noises on Mercedes Classe A 3 which could maybe help you.
