[MrSweet1991]

Hi All,

I have this really weird whining noise and I'm not sure where it's coming from. What I've noticed is, it will only happen at very low speeds, like just as im pulling away, it seems if I where to accelerate and use the brake ls at something slow like 5MPH it will keep whining and then it just goes away straight away. I'll try to get a sound clip of it at some stage but any ideas?

[jwilalex]

Internal or External? Could be many things, you really need someone to assist and see if they can hear outside. Possibilities are bearings, differential, pulleys etc.

[Rich_D]

Sounds like the pads dragging

[MrSweet1991]

Originally Posted by Rich_D

Sounds like the pads dragging

Hi mate,

What's strange though is the sound only seems to happen when I accelerate or brake within that very low speed. If it was the brakes dragging then it should be a constant noise regardless? I'll try to upload a video as I use a dashcam on my phone and that should pick it up

[MrSweet1991]

Originally Posted by jwilalex

Internal or External? Could be many things, you really need someone to assist and see if they can hear outside. Possibilities are bearings, differential, pulleys etc.

Hi mate,

As I said to the last chap what's unique about this noise it is only seems to happen when I either accelerate or brake, it's not a constant noise. It will only happen at very low speeds then go, if it was something like brakes or bearings then the noise should be constant regardless. Pulleys, again these are spinning all the time so I can't imagine what could cause a noise a lt low speeds and only with accelerating or braking, I think the key here is low speed and only when accelerating or braking (that's what I remember it as anyway)

[jwilalex]

I had rear diff replaced under warranty for a whinny noise which I could only ever hear (in the car) under 10-15 mph - both accelerating and braking. Beyond those speeds nothing discernible. If you free wheel from 20 down to 0 do you still get a noise as you’re coming to a halt without touching brakes? If so it would rule brakes out and point to some other rotating part (I still guess diff, though that’s just my stab in the dark based on personal experience).

[Rich_D]

Originally Posted by MrSweet1991

Hi mate,

What's strange though is the sound only seems to happen when I accelerate or brake within that very low speed. If it was the brakes dragging then it should be a constant noise regardless? I'll try to upload a video as I use a dashcam on my phone and that should pick it up

Think I misunderstood your original post.

Does it not go away when you apply light brake pressure?

Could be the gearbox or the diff if it's a constant whining at low speed, does it change with speed or in different gears?

[MrSweet1991]

Originally Posted by Rich_D

Think I misunderstood your original post.

Does it not go away when you apply light brake pressure?

Could be the gearbox or the diff if it's a constant whining at low speed, does it change with speed or in different gears?

It's very specific to be honest, this noise will only sound at very low speeds and it seems as though it happens when I touch the accelerator or the brake, come off the brake or accelerator the noise goes, it happened once today but it was far too quite to pickup on the dash cam. I'd slow down and then apply a tiny amount of acceleration and when when I apply acceleration it makes the sound. To make it more complicated though, it happened once today and it was far too quite to pickup on camera. So when it does occur it seems to only whine within say 5MPH and its only when I accelerate or brake, if I step off either the noise won't happen and the noise only happens now and again.

I suppose I'll have to get a video to really get across what sort of whine I'm talking about, it's bloody embeassasing when it does happen though

[DriverLDN]

Originally Posted by MrSweet1991

Hi All,

I have this really weird whining noise and I'm not sure where it's coming from. What I've noticed is, it will only happen at very low speeds, like just as im pulling away, it seems if I where to accelerate and use the brake ls at something slow like 5MPH it will keep whining and then it just goes away straight away. I'll try to get a sound clip of it at some stage but any ideas?

I had a similar issue on mine at low speed, it turned out to be the shield thing that sits behind the rear brake discs. After applying a little pressure to it and just bending it back ever so slightly, the noise was gone.

[Chappers 71]

I also had a whining noise in my 35i, turned out to be the missus

[rasa bmw]

Originally Posted by Chappers 71

I also had a whining noise in my 35i, turned out to be the missus

you beat me to it,,but mine only whines when going quick ha ha ha

[Chappers 71]

Originally Posted by rasa bmw

you beat me to it,,but mine only whines when going quick ha ha ha

Lol.
Yeah, to fast, to slow, I can't even cunt someone off to myself in the privacy of my own car, it's just constant whining. Never used to do it

[rasa bmw]

she hated it when i had a focus st with decat/non res miltek full exhaust,,noise makes it seem faster,,i used to look at her,,she would look back at me,,and id just say "boost" loud,,and plant my foot ha ha bangs and pops,,on up change it would sound like a shotgun going off

[sam1er]

Similar noise on mine turned out to be the diff. But i also had a worn out wheel bearing which was done after the diff. The noise you describe went away after the diff refurb. I did take it to the mechanic when the noise was intermittent and they could never reproduce it, had to wait for it to get worse before it could be detected.

[Tambohamilton]

+1 for diff or gearbox. Seems like you can hear it when there's torque (accel or decel) being transmitted at low speed, which leads me to drive line.... Whining noise must be gears.

[MrSweet1991]

Originally Posted by Tambohamilton

+1 for diff or gearbox. Seems like you can hear it when there's torque (accel or decel) being transmitted at low speed, which leads me to drive line.... Whining noise must be gears.

Time will tell, to this day I still struggle to get that noise to happen and when it does the dash cam (well my phone with a dash cam app) can't pick it up. And me and my partner can't work out where it's actually coming from, sometimes it sounds rear drivers side, sometimes I could swear it sounds under the center arm rest (where the Torque Converter would be)

If it happened more frequently I'd stick a voice recorder under the car but half the time it doesn't even make that noise

[rasa bmw]

Originally Posted by MrSweet1991

Time will tell, to this day I still struggle to get that noise to happen and when it does the dash cam (well my phone with a dash cam app) can't pick it up. And me and my partner can't work out where it's actually coming from, sometimes it sounds rear drivers side, sometimes I could swear it sounds under the center arm rest (where the Torque Converter would be)

If it happened more frequently I'd stick a voice recorder under the car but half the time it doesn't even make that noise

ghosts