When you find out about unusual noises on your Audi S4 you tend to stress about them. Specifically when you feel a noise when you accelerate on your Audi S4. It is immediately assimilated to an engine motor problem and can therefore be serious. As we know that you do not take these trouble lightly, we have made a decision to write this document to help you find the causes and eliminate 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 Audi S4, then what is a whistling or ratling noise at the acceleration of my Audi S4, then the origins of a noise that intensifies during acceleration and to finish a noise that ends when I stop accelerating.
Ma Audi S4 makes a high-pitched noise when I accelerate:
If your Audi S4 generates a loud noise when you accelerate, it is quite possible that the alternator belt is the induce of your problem. You will need to define if this noise appears suddenly and if it can stop as it started. The alternator belt is a wearing part that is used to get power to the secondary components of your Audi S4’s engine and although it is less crucial than the timing belt it can induce 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 at fault. In any case, check the condition of your belt and its tension. If it causes this acceleration noise on Audi S4, go to your mechanic.
Ma Audi S4 makes whining noise when I accelerate:
- Rattling or whistling noise caused 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 Audi S4, it is conceivable that your turbo is screwing up and some of its components are at the end of their life. Check it and swap it if it is the induce, otherwise you risk clogging your engine in the long run. If you listen to this blowing or whistling sound on your car, feel free to read this content about turbo noises on Audi S4, if you would like more info.
If, on the other hand, you do not get any power loss due to an humming noise on your Audi S4, it is more than likely that you have one of your junctions or air hoses that has holes. So check the complete air supply system from your air filter to your engine to determine the origin of this acceleration sound.
Ma Audi S4 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 Audi S4 gets loud, then you will have to look at the rolling parts of your vehicle. Indeed, if this loud noise does not emerge when you iddle, it is necessarily related to your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so remember to check their condition to make sure it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to Audi S4 noise wheels.
Ma Audi S4 produces a noise when I accelerate that ceases when I stop accelerating:
At last, if you experience a noise when accelerating with your Audi S4 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 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 manifestations, go to your auto technician to swap the clutch release bearings on your Audi S4. Go through our article on clutch noise on Audi S4 for more information.
