It is never pleasing to hear a noise from your car you don’t know where from. Thus what if you discover a serpentine belt noise that remains on your smart forfour? It is extremely plausible that this is a minor issue, 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 a document to support you finding and solving it. First, we will look at the serpentine belt noises on your smart forfour and then we will look at the sources of these noises.
I feel noises from serpentine belt smart forfour
The best technique to check the state of your belts is to listen to your automobile. Immediately after you notice noises such as squealing or bells, you should take a closer look to check their origin. The task of the serpentine belt or driving belt of your smart forfour 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 important 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 hear squealing noises on my serpentine belt smart forfour
This kind of squealing belt noises on smart forfour, which will often be acute, can usually occur when the engine is cold, or when the acceleration increases in intensity. . This kind of sound must be significant and it is normally quite simple to associate it with one of these belts. To check, 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 spot a belt noise on your smart forfour. The cause of this issue can be connected 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 a chance that this phenomenon is annodine. As the serpentine belt of your smart forfour 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 check the state of your belt (crack, crack), if this is the case change it, otherwise simply tighten the belt.
I hear loud serpentine or driving belt noises smart forfour
Just like squealing, a driving belt noise on your smart forfour that sounds like a loud grinding sound can express a lot about its state. It is therefore imperative that you look further and find 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 correctly. Other alternatives, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the origin of this issue. Make sure you check first the serpentine/driving belt which in most cases is the cause of this issue, otherwise it will be necessary to change the tensioner or pulley.
I hear bearing noises on the serpentine belt of my smart forfour
Finally, if in your case you distinguish a bearing belt noise on smart forfour, it is plausible that it is connected to a serpentine belt that is too tight . Indeed, it is plausible 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 swap 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 smart forfour which could maybe help you.
