It is never pleasing to discover a noise from your car you don’t know where from. Thus what if you identify a serpentine belt noise that lasts on your Mercedes A class? It is highly possible that this is a minimal trouble, but before being sure, it is better to operate some checks. If this belt noise comes from your serpentine or driving belt, our team has written an article to help you locating and correcting it. First, we will look at the serpentine belt noises on your Mercedes A class and then we will look at the sources of these noises.serpentine-belt-noise-mercedes-a-class

I feel noises from serpentine belt Mercedes A class

The best way to check the state of your belts is to listen to your car. As soon as you notice noises such as squealing or bells, you should take a closer look to verify their source. The task of the serpentine belt or driving belt of your Mercedes A class 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 important in the normal use of your car. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the capacity to drive distinctive engine elements at variable speeds.

I discover squealing noises on my serpentine belt Mercedes A class

This type of squealing belt noises on Mercedes A class, which will often be acute, can in most cases appear when the engine is cold, or when the acceleration increases in intensity. . This type of noise must be heavy and it is often quite simple to relate it with one of these belts. To verify, do not hesitate to open your bonnet, engine running cold and check the source of this noise, the serpentine or driving belt being visible, it should not be too difficult for you to spot a belt noise on your Mercedes A class. The reason of this trouble can be related to the damper pulley, which acts 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 possibility that this event is annodine. As the serpentine belt of your Mercedes A class is exposed, it may squeak due to excessive humidity due to weather conditions and it may end with a change in conditions. Keep in mind to verify the state of your belt (crack, crack), if this is the case swap it, otherwise simply tighten the belt.

I discover loud serpentine or driving belt noises Mercedes A class

Just like squealing, a driving belt noise on your Mercedes A class that sounds like a loud grinding sound can reveal a lot about its state. It is therefore necessary that you look further and locate the cause for this sound that can indicate 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 possibilities, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the source of this trouble. Make sure to verify first the serpentine/driving belt which in most cases is the reason of this trouble, otherwise it will be necessary to swap the tensioner or pulley.

I discover bearing noises on the serpentine belt of my Mercedes A class

Finally, if in your case you identify a bearing belt noise on Mercedes A class, it is possible that it is related to a serpentine belt that is too tight . Indeed, it is possible 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 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 change it if it is too short. If after checking all thoses possibilities, you still identify a belt noises, read our article about timing belt noises on Mercedes A class which could maybe help you.