It is never pleasant to listen to a noise from your car you don’t know where from. Thus what if you notice a serpentine belt noise that lasts on your Audi A4? It is extremely possible that this is a minor issue, but before being sure, it is better to conduct some investigations. If this belt noise comes from your serpentine or driving belt, our team has written a post to support you finding and repairing it. First, we will look at the serpentine belt noises on your Audi A4 and then we will check out the origins of these noises.serpentine-belt-noise-audi-a4

I feel noises from serpentine belt Audi A4

The best strategy to control the state of your belts is to listen to your car. As soon as you detect noises such as squealing or bells, you should take a closer look to verify their origin. The role of the serpentine belt or driving belt of your Audi A4 is to transmit the movement of the engine to the secondary parts that it will supply with energy. Like steering, air conditioning, water pump. Its role is therefore vital in the normal performance of your car. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the ability to drive different engine parts at variable speeds.

I listen to squealing noises on my serpentine belt Audi A4

This sort of squealing belt noises on Audi A4, which will often be acute, can mostly occur when the engine is cold, or when the acceleration increases in intensity. . This sort of sound must be heavy 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 origin of this noise, the serpentine or driving belt being exposed, it should not be too complicated for you to identify a belt noise on your Audi A4. The reason of this issue can be connected to the damper pulley, which operates 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 the possibility that this event is annodine. As the serpentine belt of your Audi A4 is exposed, it may squeak due to excessive humidity due to weather conditions and it may stop with a change in conditions. Remember to verify the state of your belt (crack, crack), if this is the case replace it, otherwise simply tighten the belt.

I listen to loud serpentine or driving belt noises Audi A4

Just like squealing, a driving belt noise on your Audi A4 that sounds like a loud grinding sound can say a lot about its state. It is therefore necessary 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 origin of this issue. Don’t forget to verify 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 listen to bearing noises on the serpentine belt of my Audi A4

Finally, if in your case you discern a bearing belt noise on Audi A4, it is possible that it is connected 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 detect a belt noises, read our article about timing belt noises on Audi A4 which could maybe help you.