When you discover irregular sounds on your Audi A4 you tend to concerns about them. Especially when you feel a noise when you accelerate on your Audi A4. It is instantly assimilated to an engine issue and can therefore be serious. As we know that you do not take these disorders lightly, we have decided to create 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 reasons of a high pitched noise when accelerating with my Audi A4, then what is a whistling or ratling noise at the acceleration of my Audi A4, then the sources of a noise that intensifies during acceleration and at last a noise that ceases when I stop accelerating.
Ma Audi A4 makes a high-pitched noise when I accelerate:
If your Audi A4 generates a loud noise when you accelerate, it is quite plausible that the alternator belt is the induce of your issue. You will need to define if this noise shows up abruptly 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 A4’s engine and although it is less crucial than the timing belt it can induce engine problem if it breaks. This sound may be a indicator 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 A4, go to your technician.
Ma Audi A4 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 Audi A4, it is plausible that your turbo is declining and some of its components are at the end of their life. Examine it and swap it if it is the induce, otherwise you risk blockage your engine in the long run. If you discover this blowing or whistling sound on your car, feel free to consult this article about turbo noises on Audi A4, if you would like more info.
If, on the other hand, you do not feel any power loss due to an humming noise on your Audi A4, 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 discover the source of this acceleration sound.
Ma Audi A4 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 A4 gets loud, then you will have to check the rolling parts of your car. In fact, if this loud noise does not occur when you iddle, it is certainly connected to your transmission, and, in general, to your wheels. The most regular cause is the state of your bearings, so don’t forget to check their condition to be sure it is not the cause of this loud noise when you accelerate. If not, go to this content page about the noises related to Audi A4 noise wheels.
Ma Audi A4 generates a noise when I accelerate that stops when I stop accelerating:
At last, if you encounter a noise when accelerating with your Audi A4 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 replaced around every 120 000 / 130 000km. To test it, you just have to see if you have more difficulty than usual 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 replace the clutch release bearings on your Audi A4. Read our article on clutch noise on Audi A4 for more information.
