When you discover irregular noises on your smart fortwo you tend to stress about them. Specifically when you feel a noise when you accelerate on your smart fortwo. It is automatically assimilated to an engine motor issue and can therefore be severe. As we know that you do not take these problems lightly, we have decided to write this content page to help you find the causes and get rid of this matter as quickly as possible. To do this, we will first see what are the oeigins of a high pitched noise when accelerating with my smart fortwo, then what is a whistling or ratling noise at the acceleration of my smart fortwo, then the origins of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating.
Ma smart fortwo makes a high-pitched noise when I accelerate:
If your smart fortwo makes a loud noise when you accelerate, it is quite possible that the alternator belt is the cause of your issue. You will need to identify if this noise happens abruptly and if it can stop as it started. The alternator belt is a wearing part that is utilized to supply power to the secondary components of your smart fortwo’s engine and although it is less vital than the timing belt it can bring about engine problem if it fails. This sound may be a sign of a slackened belt, in which case the tensioner roller or its wear and tear may be at fault. In any case, check the condition of your belt and its tension. If it causes this acceleration noise on smart fortwo, go to your auto mechanic.
Ma smart fortwo makes whining noise when I accelerate:
- Rattling or whistling noise created by the turbo
- Humming noise caused by air leakage
If you have a power loss that comes with the rattling noise when you accelerate with your smart fortwo, it is possible that your turbo is failing and some of its elements are at the end of their life. Examine it and change it if it is the cause, otherwise you risk blockage your engine in the long run. If you listen to this blowing or whistling sound on your car, feel free to refer to this article about turbo noises on smart fortwo, if you would like more details.
If, on the other hand, you do not experience any power loss due to an humming noise on your smart fortwo, it is more than likely that you have one of your junctions or air hoses that has holes. So check the entire air supply system from your air filter to your engine to discover the origin of this acceleration sound.
Ma smart fortwo makes an increasingly loud noise when I accelerate:
If, on the other hand, you have the feeling that the more you gain speed, the more your noise at acceleration on smart fortwo gets loud, then you will have to think about the rolling parts of your automobile. In fact, if this loud noise does not occur when you iddle, it is surely related to your transmission, and, in general, to your wheels. The most regular cause is the state of your bearings, so remember to check their condition to make sure it is not the cause of this loud noise when you accelerate. If not, go to this content page about the noises related to smart fortwo noise wheels.
Ma smart fortwo generates a noise when I accelerate that ends when I stop accelerating:
Finally, if you experience a noise when accelerating with your smart fortwo and this noise which could be a cliking sound tends to stop when you disengage (press the clutch pedal), then one of the wear parts of your clutch system may be the cause. In fact, the clutch release bearings must be swapped almost every 120 000 / 130 000km. To evaluate it, you just have to see if you have more difficulty than usual shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these signs of illness, go to your auto technician to change the clutch release bearings on your smart fortwo. Look at our article on clutch noise on smart fortwo for more information.
