When you detect unusual sounds on your Mercedes C class you tend to concerns about them. Specifically when you feel a noise when you accelerate on your Mercedes C class. It is right away assimilated to an engine unit trouble and can therefore be significant. As we know that you do not take these problems lightly, we have decided to write this content to help you find the causes and eradicate this concern as quickly as possible. To do this, we will first see what are the oeigins of a high pitched noise when accelerating with my Mercedes C class, then what is a whistling or ratling noise at the acceleration of my Mercedes C class, then the sources of a noise that intensifies during acceleration and finally a noise that ceases when I stop accelerating.
Ma Mercedes C class makes a high-pitched noise when I accelerate:
If your Mercedes C class generates a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your trouble. You will need to determine if this noise occurs abruptly and if it can stop as it started. The alternator belt is a wearing part that is utilized to bring power to the secondary components of your Mercedes C class’s engine and although it is less vital than the timing belt it can cause engine damage if it breaks. This sound may be a sign of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. In any case, examine the state of your belt and its tension. If it causes this acceleration noise on Mercedes C class, go to your mechanic.
Ma Mercedes C class 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 Mercedes C class, it is conceivable that your turbo is failing and some of its components are at the end of their life. Examine it and replace it if it is the reason, otherwise you risk clogging your engine in the long run. If you perceive this blowing or whistling sound on your car, feel free to read this article about turbo noises on Mercedes C class, if you would like more information.
If, on the other hand, you do not feel any power loss due to an humming noise on your Mercedes C class, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the entire air supply system from your air filter to your engine to determine the origin of this acceleration sound.
Ma Mercedes C class 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 C class gets loud, then you will have to check the rolling parts of your automobile. Indeed, if this loud noise does not emerge when you iddle, it is necessarily connected to your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so make sure you examine their state to be sure 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 C class noise wheels.
Ma Mercedes C class generates a noise when I accelerate that ceases when I stop accelerating:
To finish, if you experience a noise when accelerating with your Mercedes C class and this noise which could be a cliking sound tends to end 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 changed almost every 120 000 / 130 000km. To evaluate 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 auto technician to swap the clutch release bearings on your Mercedes C class. Go through our article on clutch noise on Mercedes C class for more information.
