noise

Noise is unwanted sound considered unpleasant, loud or disruptive to hearing. From a physics standpoint, there is no distinction between noise and desired sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.Acoustic noise is any sound in the acoustic domain, either deliberate (e.g., music or speech) or unintended. In contrast, noise in electronics may not be audible to the human ear and may require instruments for detection.In audio engineering, noise can refer to the unwanted residual electronic noise signal that gives rise to acoustic noise heard as a hiss. This signal noise is commonly measured using A-weighting or ITU-R 468 weighting.In experimental sciences, noise can refer to any random fluctuations of data that hinders perception of a signal.

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  1. M

    Aircon pump squeak / chirp.

    Pump on my car has suddenly become noisy as hell after a mere 200 miles, squeak can be heard quite a distance from the car, anyone else had the same issue ? If you put your hand on the pump when running there's a vibration in time with the chirp, not sure it's long for this world :unsure: The...
    • Macadoodle
    • Thread
    • ac air conditioning electric electric vehicle mg4 noise
    • Replies: 152
    • Forum: MG4 EV Forum
  2. FunkyWorm

    Artificial noise; is this a thing?

    Electric cars more likely to hit pedestrians than petrol vehicles, study finds “Since July 2019, all new hybrid and electric vehicles sold in Europe have been required to have an acoustic vehicle alerting system that emits sound when the car is travelling slowly…” Is this the case with the MG4?
  3. B

    Noise at bumpy road

    Hi, i have 2024 phase 1 MG4 luxury. At bumpy road i have some plastic noises from the central mirror and dashboard. Also from passenger door trim. Everyone else have this?
  4. Richierich37

    Creaking noise?!?!

    Evening guys, I’ve had my Mg5 since new so about 2 years old and I’ve covered about 60k miles with no real issues! Today the car has developed a creaking noise when static and turning the steering wheel to the left?!?! I’ve searched the net but not much coming back for the Mg5 so it’s booked...
  5. D

    Dealer refuses to help

    So I have two issues 1. Noise from the window over 30mph 2. Vibration around 70mph What do I do if they say they are just normal for cars. 'the wind noise is from the motor it is normal. We have a chance of making it worse. It is a mass produced car but these issues are not a fault' 'the...
  6. C

    Creaking in passenger side B pillar area

    Anyone experience this issue? Its not that loud but its annoying. it sounds like a light 'tick tick tick' every time I go over a slightly rough road or bump on the passenger side. Once I notice it, all I hear is this, so its really annoying but I am having trouble narrowing down where its...
    • coff33
    • Thread
    • creak creaking mg4 noise passenger
    • Replies: 6
    • Forum: MG4 EV Forum
  7. Chris Bronsdon

    High pitched whine

    (this is a copy of a post that I had mistakenly added to the wrong forum) I have a 2023 MG4 Trophy, with the rear spoilers. The car makes a constant high pitched whine at high speed, over about 60mph. I took it to my local MG garage a few months ago and was told there isn't a fault. The noise...
  8. J

    PHEV EV Motor high pitched whistle noise

    Hi All, just purchased 21' PHEV with 17k miles. Does anyone experience a high pitched whistling noise specifically from the EV motor / drive train? Appears to occur / noticeable when the EV motor is above 3000 rpm, the pedestrian noise warning has cut out at this point. It's noticeable but...
  9. R

    A/C auto

    Is it possible to disable A/C by default? It’s a lot of noise when I have temp on auto as well. Turns me crazy
  10. Philekent

    Audible Reversing warning

    I was wondering if anyone has bought / fitted an Audible Warning 'noise maker' which seem to becoming more and more common in other Marques. ?
  11. W

    Clink clank clunk noise

    Ever since I bought my trophy, i hear this strange noise during the few seconds after locking or unlocking the car. I am not sure how to describe the noise but it gives the feeling of a very old rusty truck. Anyone having this issue?
  12. N

    Sound insulation on wheel arch cover to reduce tyre noise

    Saw this on AliExpress, anyone tried it, or have any thoughts? No reviews on that product for the MG4, but it appears to be the same product as this which has lots of positive comments (also cheaper). My only reservation would be installing it on the exterior.
  13. S

    Noise from 30mph.mg zs ev 2020

    The car is fine upto 30 mph, once you hit this magical number there is a rumbling / minor vibration? Which continues upto 70mph. I assumed wrongly that it was a wheel bearing, this has been checked and all fine. I am wondering whether it is one of the motors? Any help would be appreciated.
  14. Matt x power

    Odd noise

    In the morning sometimes I get this odd noise coming from the back end of my x power, its when moving slowly it sounds like I have one of those reverse beepers that lorries have which sound like a magpie, Very odd I must admit.
  15. D

    Resonating bass cabin noise when driving

    Hey, first of all . My native language is Dutch so sorry in advance for spelling errors. I have the MG4 Lux 2023 model and I have driven almost 5000 km with it and I am very happy with the car. But only 1 thing is very annoying. When I am driving on a well paved road (asphalt) it is fine. But...
    • derooke
    • Thread
    • bass cabine noise driving mg4 mg4 ev noise resonating
    • Replies: 21
    • Forum: MG4 EV Forum
  16. S

    Seat belt warning noise

    I have to say the seat belt not on warning in the MG FL is the most gentle pleasant sound I have had in any car. With the bonus is stops the annoying sound from the indicator lol Ps I do wear my seat belt when driving just noticed this when I was moving the car slightly.
  17. Dave S

    Screeching noise from back end whilst cornering!

    MG ZS LR 2023. Screeching noise whilst cornering! Sorry if this has been covered elsewhere, and thanks if you can re-direct me to that thread. I'm getting a screeching noise from the rear end when I'm going round a right angled bend or corner even from a speed of about 30 mph. It's OK going...
    • Dave S
    • Thread
    • back end cornering mg zs ev noise rear end screeching noise
    • Replies: 1
    • Forum: MG ZS EV Forum
  18. K

    MG5 PFL squeaking noise from suspension

    Hello. I've been noticing a squeaking noise every time I drive over a bump. I took the car to the garage, and they confirmed that the suspension is solid. However, they couldn't identify the source of the noise. Has anyone else experienced a similar issue? Any insights would be appreciated.
  19. T

    Power steering play!

    (3 years old) We noticed that the steering had about 2-3 inches of play on it. At the same time a clunking noise started coming from the front off side. Booked in dealership as under warranty took over a month to get it in. Stopped using car as didn’t feel safe. Anyone had a similar problem? Car...
  20. A

    "Boing" noise from left rear suspension when turning into a driveway

    I have a Phase 2 Excite 51 (SR) RHD (Australia) and I've noticed that on rare occasions, when I'm turning left over a bump (for example, left turning into a shopping centre car park), there's quite a loud "boing" noise from the back left of the car. It's a pretty comical sounding noise. If...
    • AlC
    • Thread
    • driveway mg4 noise rear suspension
    • Replies: 10
    • Forum: MG4 EV Forum
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