It is never pleasing to find out 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 4? It is extremely possible that this is a minimal problem, but before being sure, it is better to carry out some inspections. If this belt noise comes from your serpentine or driving belt, our team has written a post to help you finding and repairing it. First, we will look at the serpentine belt noises on your Mercedes Classe A 4 and then we will check out the sources of these sounds.
I encounter noises from serpentine belt Mercedes Classe A 4
The best method to check the condition of your belts is to listen to your automobile. As soon as you recognize sounds such as squealing or bells, you should take a closer look to verify their source. The job of the serpentine belt or driving belt of your Mercedes Classe A 4 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 fundamental in the normal overall performance of your automobile. 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 find out squealing noises on my serpentine belt Mercedes Classe A 4
This sort of squealing belt noises on Mercedes Classe A 4, which will often be acute, can usually appear when the engine is cold, or when the acceleration increases in intensity. . This sort of noise must be significant and it is obviously 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 exposed, it should not be too complicated for you to spot a belt noise on your Mercedes Classe A 4. The reason of this problem can be linked to the damper pulley, which functions 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 an opportunity that this event is annodine. As the serpentine belt of your Mercedes Classe A 4 is exposed, it may squeak due to excessive humidity due to weather conditions and it may end with a change in conditions. Remember to verify the condition of your belt (crack, crack), if this is the case swap it, otherwise simply tighten the belt.
I find out loud serpentine or driving belt noises Mercedes Classe A 4
Just like squealing, a driving belt noise on your Mercedes Classe A 4 that sounds like a loud grinding sound can say a lot about its condition. It is therefore imperative that you look further and locate the reason 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 problem. Make sure to verify first the serpentine/driving belt which in most cases is the reason of this problem, otherwise it will be necessary to swap the tensioner or pulley.
I find out bearing noises on the serpentine belt of my Mercedes Classe A 4
Finally, if in your case you recognize a bearing belt noise on Mercedes Classe A 4, it is possible that it is linked 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 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 change 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 4 which could maybe help you.
