It is never pleasing to notice a noise from your car you don’t know where from. Then what if you notice a serpentine belt noise that lasts on your BMW i3? It is highly conceivable that this is a minor trouble, 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 document to help you finding and repairing it. First, we will look at the serpentine belt noises on your BMW i3 and then we will take a look at the sources of these noises.serpentine-belt-noise-bmw-i3

I encounter noises from serpentine belt BMW i3

The best technique to control the state of your belts is to listen to your automobile. Immediately after you find noises such as squealing or bells, you should take a closer look to check their source. The role of the serpentine belt or driving belt of your BMW i3 is to transfer 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 essential in the normal operation of your automobile. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the capacity to drive different engine parts at variable speeds.

I notice squealing noises on my serpentine belt BMW i3

This kind of squealing belt noises on BMW i3, which will often be acute, can usually happen when the engine is cold, or when the acceleration increases in intensity. . This kind of noise must be heavy 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 locate a belt noise on your BMW i3. The cause of this trouble can be connected to the damper pulley, which works as a damper to eradicate 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 phenomenon is annodine. As the serpentine belt of your BMW i3 is exposed, it may squeak due to excessive humidity due to weather conditions and it may end with a change in conditions. Remember to check the state of your belt (crack, crack), if this is the case swap it, otherwise simply tighten the belt.

I notice loud serpentine or driving belt noises BMW i3

Just like squealing, a driving belt noise on your BMW i3 that sounds like a loud grinding sound can express a lot about its state. It is therefore necessary that you look further and find 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. Don’t forget to check first the serpentine/driving belt which in most cases is the cause of this trouble, otherwise it will be necessary to swap the tensioner or pulley.

I notice bearing noises on the serpentine belt of my BMW i3

Finally, if in your case you discern a bearing belt noise on BMW i3, it is conceivable that it is connected to a serpentine belt that is too tight . Indeed, it is conceivable that its size may be smaller than suggested 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 detect a belt noises, read our article about timing belt noises on BMW i3 which could maybe help you.