When you detect unusual noises on your Citroen C4 Aircross you tend to stress about them. Specifically when you feel a noise when you accelerate on your Citroen C4 Aircross. It is right away assimilated to an engine unit issue and can therefore be considerable. As we know that you do not take these complications lightly, we have made a decision to create this content to support you find the causes and wipe out this issues as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Citroen C4 Aircross, then what is a whistling or ratling noise at the acceleration of my Citroen C4 Aircross, then the sources of a noise that intensifies during acceleration and finally a noise that ceases when I stop accelerating.noise-when-acceleratingcitroen-c4-aircross

Ma Citroen C4 Aircross makes a high-pitched noise when I accelerate:

If your Citroen C4 Aircross generates a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your issue. You will need to identify if this noise happens 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 Citroen C4 Aircross’s engine and although it is less vital than the timing belt it can cause engine failure if it fails. This noise may be a indicator of a slackened belt, in which case the tensioner roller or its wear and tear may be responsible. In any case, verify the state of your belt and its tension. If it causes this acceleration noise on Citroen C4 Aircross, go to your technician.

Ma Citroen C4 Aircross makes whining noise when I accelerate:

  • Rattling or whistling noise caused by the turbo
  • If you have a power loss that occurs with the rattling noise when you accelerate with your Citroen C4 Aircross, it is conceivable that your turbo is failing and some of its elements are at the end of their life. Verify it and replace it if it is the reason, otherwise you risk blockage your engine in the long run. If you notice this blowing or whistling noise on your car, feel free to read this content page about turbo noises on Citroen C4 Aircross, if you would like more info.

  • Humming noise caused by air leakage
  • If, on the other hand, you do not experience any power loss due to an humming noise on your Citroen C4 Aircross, it is more than likely that you have one of your junctions or air hoses that has holes. So verify the complete air supply system from your air filter to your engine to determine the starting point of this acceleration sound.

Ma Citroen C4 Aircross 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 Citroen C4 Aircross gets loud, then you will have to think about the rolling parts of your vehicle. In fact, if this loud noise does not show up when you iddle, it is necessarily related to your transmission, and, in general, to your wheels. The most regular reason is the state of your bearings, so remember to verify their condition to be sure it is not the reason of this loud noise when you accelerate. If not, go to this article about the noises related to Citroen C4 Aircross noise wheels.

Ma Citroen C4 Aircross generates a noise when I accelerate that ceases when I stop accelerating:

Finally, if you encounter a noise when accelerating with your Citroen C4 Aircross 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 reason. In fact, the clutch release bearings must be swapped approximately 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 auto technician to swap the clutch release bearings on your Citroen C4 Aircross. Go through our article on clutch noise on Citroen C4 Aircross for more information.