When you observe unusual noises on your BMW 5 Series you tend to concerns about them. Especially when you feel a noise when you accelerate on your BMW 5 Series. It is instantly assimilated to an engine issue and can therefore be considerable. As we know that you do not take these trouble lightly, we have decided to prepare this article to support you find the causes and wipe out this matter as quickly as possible. To do this, we will first see what are the causes of a high pitched noise when accelerating with my BMW 5 Series, then what is a whistling or ratling noise at the acceleration of my BMW 5 Series, then the sources of a noise that intensifies during acceleration and at last a noise that ends when I stop accelerating.noise-when-acceleratingbmw-5-series

Ma BMW 5 Series makes a high-pitched noise when I accelerate:

If your BMW 5 Series produces 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 takes place abruptly and if it can stop as it started. The alternator belt is a wearing part that is used to supply power to the secondary components of your BMW 5 Series’s engine and although it is less vital than the timing belt it can induce engine problem if it fails. This sound may be a warning 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 condition of your belt and its tension. If it causes this acceleration noise on BMW 5 Series, go to your auto technician.

Ma BMW 5 Series makes whining noise when I accelerate:

  • Rattling or whistling noise generated by the turbo
  • If you have a power loss that occurs with the rattling noise when you accelerate with your BMW 5 Series, it is conceivable that your turbo is declining and some of its elements are at the end of their life. Examine it and swap it if it is the induce, otherwise you risk clogging your engine in the long run. If you find out this blowing or whistling sound on your car, feel free to read this content page about turbo noises on BMW 5 Series, if you would like more information.

  • 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 BMW 5 Series, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the whole air supply system from your air filter to your engine to determine the source of this acceleration sound.

Ma BMW 5 Series produces 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 BMW 5 Series gets loud, then you will have to check out the rolling parts of your vehicle. In fact, if this loud noise does not surface when you iddle, it is certainly related to your transmission, and, in general, to your wheels. The most common reason is the state of your bearings, so make sure you examine their condition to make 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 BMW 5 Series noise wheels.

Ma BMW 5 Series creates a noise when I accelerate that ends when I stop accelerating:

To finish, if you experience a noise when accelerating with your BMW 5 Series 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. In fact, the clutch release bearings must be swapped 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 symptoms, go to your auto mechanic to change the clutch release bearings on your BMW 5 Series. Go through our article on clutch noise on BMW 5 Series for more information.