335i (brake?) squeal

[prospect]

I've noticed a loud squeal coming from the passenger side even when the car is stationary. It's happened twice in the past 2 weeks so not exactly easy to reproduce. Any idea what it could be?

 

[Ralf*]

I've noticed a loud squeal coming from the passenger side even when the car is stationary. It's happened twice in the past 2 weeks so not exactly easy to reproduce. Any idea what it could be?

when totally stationary ?
then it cannot be brakes

if it happens even if at just "inching" forward speed, then it could be a certain make of brake pads (not necessarily inferior quailty pads) , it could be slightly glazed disks

a solution without replacing pads, and/or replacing or skimming the disks, is to place some "COPPERSLIP" paste ( a thin layer) on the piston contact point with the pads...(not on the disks)

 

[freerider]

Yeah I'm also wondering how brakes squeal when the car is stationary, do you perhaps mean when coming to a halt and almost stationary?

If the above, then I would recommend just doing a bed in procedure before replacing anything, sometimes the pads just get a bit glazed from braking like a granny.

 

[prospect]

I agree Ralf, can't be the brakes. It started immediately when I drove off and continued when I was completely stationary. It only went away when I accelerated hard.

Before I forget; brakes were replaced last week. The squeal started 2 weeks ago. If I can just reproduce it then BMW will sort it out.

---

Yeah I'm also wondering how brakes squeal when the car is stationary, do you perhaps mean when coming to a halt and almost stationary?

If the above, then I would recommend just doing a bed in procedure before replacing anything, sometimes the pads just get a bit glazed from braking like a granny.

Occurs when car is moving at low speeds and when it's completely stationary. Weird I know.

 

[freerider]

Then I'm going with a belt or pulley in the engine bay

 

[prospect]

Then I'm going with a belt or pulley in the engine bay

Now to reproduce it :argh:

 

[freerider]

Maybe just visually inspect the belts for any damage and/or wear and see if any of the pulleys have play in them.

 

[651 drop]

Hi.
Got the same on my vehicle. But only at low speeds and coming to a halt. Bmw replaced discs and pads, went away and returned after a wile. It's wen u don't use the car often and the brake dust build up forms a layer between disc and pad. Also not sure wot to use

 

[DieselFan]

Hi.
Got the same on my vehicle. But only at low speeds and coming to a halt. Bmw replaced discs and pads, went away and returned after a wile. It's wen u don't use the car often and the brake dust build up forms a layer between disc and pad. Also not sure wot to use

I had the same squeel at low speed in parking lots. I had my callipers serviced and hasn't happened in 20k kms

 

[651 drop]

Thanks. Hw and were do u get tem serviced

 

[DieselFan]

Thanks. Hw and were do u get tem serviced

Had it done at my mechanic. Didn't ask what it entailed.