When you discover unusual sounds on your Mercedes Benz GLS Class you tend to stress about them. Specifically when you feel a noise when you accelerate on your Mercedes Benz GLS Class. It is immediately assimilated to an engine unit trouble and can therefore be significant. As we know that you do not take these disorders lightly, we have chosen to produce this content page to help you find the causes and get rid of 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 Benz GLS Class, then what is a whistling or ratling noise at the acceleration of my Mercedes Benz GLS Class, then the sources of a noise that intensifies during acceleration and to finish a noise that ceases when I stop accelerating.
Ma Mercedes Benz GLS Class makes a high-pitched noise when I accelerate:
If your Mercedes Benz GLS 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 happens abruptly and if it can stop as it started. The alternator belt is a wearing part that is utilized to get power to the secondary components of your Mercedes Benz GLS Class’s engine and although it is less vital than the timing belt it can bring about engine failure if it breaks. This sound may be a warning sign of a slackened belt, in which case the tensioner roller or its wear and tear may be at fault. In any case, verify the state of your belt and its tension. If it causes this acceleration noise on Mercedes Benz GLS Class, go to your mechanic.
Ma Mercedes Benz GLS Class makes whining noise when I accelerate:
- Rattling or whistling noise generated 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 Benz GLS Class, it is possible that your turbo is failing and some of its components are at the end of their life. Examine it and swap it if it is the reason, otherwise you risk clogging your engine in the long run. If you notice this blowing or whistling sound on your car, feel free to consult this content about turbo noises on Mercedes Benz GLS Class, 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 Benz GLS Class, 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 determine the starting point of this acceleration sound.
Ma Mercedes Benz GLS 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 Benz GLS Class gets loud, then you will have to think about the rolling parts of your car. Indeed, if this loud noise does not surface when you iddle, it is surely linked to your transmission, and, in general, to your wheels. The most common reason is the state of your bearings, so remember to verify 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 Benz GLS Class noise wheels.
Ma Mercedes Benz GLS Class makes a noise when I accelerate that stops when I stop accelerating:
To finish, if you experience a noise when accelerating with your Mercedes Benz GLS 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 replaced around every 120 000 / 130 000km. To test 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 change the clutch release bearings on your Mercedes Benz GLS Class. Go through our article on clutch noise on Mercedes Benz GLS Class for more information.
