It is never pleasant to discover a noise from your car you don’t know where from. So what if you detect a serpentine belt noise that stays on your Mercedes Classe A? It is highly conceivable that this is a minimal issue, but before being sure, it is better to operate some verifications. If this belt noise comes from your serpentine or driving belt, our team has written a page to help you finding and correcting it. First, we will look at the serpentine belt noises on your Mercedes Classe A and then we will look at the sources of these noises.
I experience noises from serpentine belt Mercedes Classe A
The best strategy to check the state of your belts is to listen to your vehicle. As soon as you find noises such as squealing or bells, you should take a closer look to examine their origin. The function of the serpentine belt or driving belt of your Mercedes Classe A is to transmit the movement of the engine to the secondary components that it will supply with energy. Like steering, air conditioning, water pump. Its role is therefore fundamental in the normal functionality of your vehicle. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the ability to drive distinctive engine components at variable speeds.
I discover squealing noises on my serpentine belt Mercedes Classe A
This kind of squealing belt noises on Mercedes Classe A, which will often be acute, can generally arise when the engine is cold, or when the acceleration increases in intensity. . This kind of noise must be heavy and it is often quite simple to link it with one of these belts. To examine, do not hesitate to open your bonnet, engine running cold and check the origin of this noise, the serpentine or driving belt being visible, it should not be too complicated for you to identify a belt noise on your Mercedes Classe A. The reason of this issue can be related to the damper pulley, which acts as a damper to get rid of 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 a chance that this phenomenon is annodine. As the serpentine belt of your Mercedes Classe A 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 examine the state of your belt (crack, crack), if this is the case change it, otherwise simply tighten the belt.
I discover loud serpentine or driving belt noises Mercedes Classe A
Just like squealing, a driving belt noise on your Mercedes Classe A that sounds like a loud grinding sound can say a lot about its state. It is therefore important that you look further and find the cause 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 properly. Other alternatives, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the origin of this issue. Remember to examine first the serpentine/driving belt which in most cases is the reason of this issue, otherwise it will be necessary to change the tensioner or pulley.
I discover bearing noises on the serpentine belt of my Mercedes Classe A
Finally, if in your case you distinguish a bearing belt noise on Mercedes Classe A, it is conceivable that it is related to a serpentine belt that is too tight . Indeed, it is conceivable that its size may be smaller than prescribed and cause the entire system to overvoltage, resulting in this whistling noise or slight rolling noise. The risk 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 replace it if it is too short. If after checking all thoses alternatives, you still notice a belt noises, read our article about timing belt noises on Mercedes Classe A which could maybe help you.
