It is never pleasant to perceive a noise from your car you don’t know where from. Then what if you discover a serpentine belt noise that lasts on your smart fortwo? It is extremely plausible that this is a minor problem, 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 document to help you finding and fixing it. First, we will look at the serpentine belt noises on your smart fortwo and then we will take a look at the sources of these noises.
I feel noises from serpentine belt smart fortwo
The best way to check the condition of your belts is to listen to your car. Immediately after you recognise noises such as squealing or bells, you should take a closer look to examine their source. The role of the serpentine belt or driving belt of your smart fortwo 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 critical in the normal general performance 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 perceive squealing noises on my serpentine belt smart fortwo
This type of squealing belt noises on smart fortwo, 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 sound must be heavy and it is normally quite simple to associate it with one of these belts. To examine, do not hesitate to open your bonnet, engine running cold and check the source of this noise, the serpentine or driving belt being accessible, it should not be too complicated for you to spot a belt noise on your smart fortwo. The reason of this problem can be connected to the damper pulley, which works 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 phenomenon is annodine. As the serpentine belt of your smart fortwo is exposed, it may squeak due to excessive humidity due to weather conditions and it may end with a change in conditions. Remember to examine the condition of your belt (crack, crack), if this is the case swap it, otherwise simply tighten the belt.
I perceive loud serpentine or driving belt noises smart fortwo
Just like squealing, a driving belt noise on your smart fortwo that sounds like a loud grinding sound can reveal a lot about its condition. It is therefore essential 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 correctly. Other possibilities, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the source of this problem. Don’t forget to examine 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 perceive bearing noises on the serpentine belt of my smart fortwo
Finally, if in your case you recognize a bearing belt noise on smart fortwo, 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 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 smart fortwo which could maybe help you.
