When you observe uncommon noises on your Mercedes Classe A 3 you tend to worry about them. Especially when you feel a noise when you accelerate on your Mercedes Classe A 3. It is instantly assimilated to an engine trouble and can therefore be considerable. As we know that you do not take these trouble lightly, we have chosen to produce this article to help you find the causes and get rid of this issues as quickly as possible. To do this, we will first see what are the causes of a high pitched noise when accelerating with my Mercedes Classe A 3, then what is a whistling or ratling noise at the acceleration of my Mercedes Classe A 3, then the sources of a noise that intensifies during acceleration and at last a noise that stops when I stop accelerating.
Ma Mercedes Classe A 3 makes a high-pitched noise when I accelerate:
If your Mercedes Classe A 3 generates a loud noise when you accelerate, it is quite possible that the alternator belt is the cause of your trouble. You will need to determine if this noise occurs suddenly and if it can stop as it started. The alternator belt is a wearing part that is employed to supply power to the secondary components of your Mercedes Classe A 3’s engine and although it is less crucial than the timing belt it can generate engine problem if it stops working. This noise may be a indicator of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. In any case, verify the state of your belt and its tension. If it causes this acceleration noise on Mercedes Classe A 3, go to your mechanic.
Ma Mercedes Classe A 3 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 occurs with the rattling noise when you accelerate with your Mercedes Classe A 3, it is plausible that your turbo is screwing up and some of its elements are at the end of their life. Verify it and swap it if it is the cause, otherwise you risk blockage your engine in the long run. If you find out this blowing or whistling noise on your car, feel free to refer to this document about turbo noises on Mercedes Classe A 3, if you would like more information.
If, on the other hand, you do not experience any power loss due to an humming noise on your Mercedes Classe A 3, it is more than likely that you have one of your junctions or air hoses that has holes. So verify the whole air supply system from your air filter to your engine to locate the starting point of this acceleration sound.
Ma Mercedes Classe A 3 generates 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 Mercedes Classe A 3 gets loud, then you will have to think about the rolling parts of your automobile. Indeed, if this loud noise does not appear when you iddle, it is surely in connection with your transmission, and, in general, to your wheels. The most common reason is the state of your bearings, so make sure to verify their condition to ensure that it is not the reason of this loud noise when you accelerate. If not, go to this content page about the noises related to Mercedes Classe A 3 noise wheels.
Ma Mercedes Classe A 3 creates a noise when I accelerate that ends when I stop accelerating:
At last, if you encounter a noise when accelerating with your Mercedes Classe A 3 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 reason. Indeed, the clutch release bearings must be swapped almost every 120 000 / 130 000km. To check it, you just have to see if you have more difficulty than every time shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these manifestations, go to your technician to swap the clutch release bearings on your Mercedes Classe A 3. Read our article on clutch noise on Mercedes Classe A 3 for more information.
