When you discover uncommon sounds on your Mercedes Classe B you tend to stress about them. Specifically when you feel a noise when you accelerate on your Mercedes Classe B. It is immediately assimilated to an engine problem and can therefore be severe. As we know that you do not take these trouble lightly, we have decided to create this content to support you find the causes and wipe out this concern as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Mercedes Classe B, then what is a whistling or ratling noise at the acceleration of my Mercedes Classe B, then the sources of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating.
Ma Mercedes Classe B makes a high-pitched noise when I accelerate:
If your Mercedes Classe B makes a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your problem. You will need to establish if this noise takes place suddenly 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 Mercedes Classe B’s engine and although it is less crucial than the timing belt it can cause engine damage if it breaks. This sound may be a symptom of a slackened belt, in which case the tensioner roller or its wear and tear may be responsible. In any case, examine the condition of your belt and its tension. If it causes this acceleration noise on Mercedes Classe B, go to your auto technician.
Ma Mercedes Classe B 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 accompanies the rattling noise when you accelerate with your Mercedes Classe B, it is plausible that your turbo is failing and some of its components are at the end of their life. Verify it and change it if it is the reason, 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 read this article about turbo noises on Mercedes Classe B, if you would like more information.
If, on the other hand, you do not get any power loss due to an humming noise on your Mercedes Classe B, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the complete air supply system from your air filter to your engine to discover the starting point of this acceleration sound.
Ma Mercedes Classe B 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 Mercedes Classe B gets loud, then you will have to check out the rolling parts of your automobile. In fact, if this loud noise does not appear when you iddle, it is necessarily linked to your transmission, and, in general, to your wheels. The most basic cause is the state of your bearings, so don’t forget to examine their condition to make sure it is not the cause of this loud noise when you accelerate. If not, go to this article about the noises related to Mercedes Classe B noise wheels.
Ma Mercedes Classe B produces a noise when I accelerate that ends when I stop accelerating:
Finally, if you encounter a noise when accelerating with your Mercedes Classe B 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 around every 120 000 / 130 000km. To evaluate it, you just have to see if you have more difficulty than usually shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these symptoms, go to your auto technician to change the clutch release bearings on your Mercedes Classe B. Look at our article on clutch noise on Mercedes Classe B for more information.
