[Shubz]

Hey guys,

Anyone experienced a whining noise while braking on the F34?
Particularly when braking on slow speeds like as in approaching a speed bump or while negotiating a curve.?
I was facing this issue. SA said may be cos of brake pads.
Subsequently the front pads were changed.
Calipers greased
Oil bled.
Things were ok for a couple of thousand kms and now that sound is back.
Kms run - 25k

https://youtube.com/watch?v=eTjM2xVXe8I?feature=share

Thanks in advance!

[DRIV3R]

This sounds like brake squeal. A dab of anti squeal paste on the rear backing plate of the brake pads and contact area of pad with caliper should fix it.

[Shubz]

Originally Posted by DRIV3R

This sounds like brake squeal. A dab of anti squeal paste on the rear backing plate of the brake pads and contact area of pad with caliper should fix it.

Sir, as mentioned earlier, pads are new, so all greasing is taken care of. this was present even before the brake pad change. after the change, all was quiet on that front until the last weekend when the noise returned when on my trip to Kundapura & back.

[Kosfactor]

No matter what you do, it will start again if you do a Mysore to Ooty through Masinagudi

This video is the official explanation about that sort of noise.

https://www.youtube.com/watch?v=fUNHb9O52WQ

[Shubz]

Originally Posted by Kosfactor

No matter what you do, it will start again if you do a Mysore to Ooty through Masinagudi

This video is the official explanation about that sort of noise.

That's a very good explanation. I am curious to know if there are others who are facing a similar issue?

and on a lighter note -- why me!!

[DRIV3R]

Originally Posted by Shubz

Sir, as mentioned earlier, pads are new, so all greasing is taken care of. this was present even before the break pad change. after the change, all was quiet on that front until the last weekend when the noise returned when on my trip to Kundapura & back.

Greasing is different. It's done to the caliper sliding pins. Anti squeal paste application is different. It is used specifically to arrest this squealing noise. Greasing has nothing to do with squeal.

FYI, some brake pads do come with deadening material on the backing plate. That is also to arrest squealing. Here is a picture of one such set of pads.

[Shubz]

Originally Posted by DRIV3R

Greasing is different. It's done to the caliper sliding pins. Anti squeal paste application is different. It is used specifically to arrest this squealing noise. Greasing has nothing to do with squeal.

FYI, some brake pads do come with deadening material on the backing plate. That is also to arrest squealing. Here is a picture of one such set of pads.

A friend of mine who was with Bosch suggested something similar. some Silent or Quiet brake pads. But the issue is - it won't be OEM - and vehicle still under BSI/BRI - so can't try anything.

[sagarpadaki]

Originally Posted by Shubz

A friend of mine who was with Bosch suggested something similar. some Silent or Quiet brake pads. But the issue is - it won't be OEM - and vehicle still under BSI/BRI - so can't try anything.

https://boodmo.com/catalog/part-lubr...licon-7262887/

Apply the above paste as a film on the back of brake pads. If the pads come with anti noise shims, remove the shim and apply the paste and put the shims back on. This should eliminate any noise caused due to pad vibration during braking.

refer this video for how to

https://www.youtube.com/watch?v=ZIk6R2QTrVE

[Shubz]

Originally Posted by sagarpadaki

https://boodmo.com/catalog/part-lubr...licon-7262887/

Apply the above paste as a film on the back of brake pads. If the pads come with anti noise shims, remove the shim and apply the paste and put the shims back on. This should eliminate any noise caused due to pad vibration during braking.

Thank you Sagar.

Problem is - they will not move a thing unless
1) there's a warning on the iDrive
2) unless there's a breakdown.

Secondly -- i was wondering if anyone else has faced a similar issue.

[mohansrides]

Originally Posted by Shubz

I am curious to know if there are others who are facing a similar issue?

I faced this issue. I fixed it. By not thinking about it. Now I don’t even hear it.

By the way, I followed the exact protocol prescribed by the head SA at Honda - “Sir…aap bhool jao isko. Life better ho jaayega. (Sir…. Forget this issue; your life will become better.)”

Dude was 100% on point.

[Jeroen]

Originally Posted by Kosfactor

No matter what you do, it will start again if you do a Mysore to Ooty through Masinagudi

This video is the official explanation about that sort of noise.
]

It’s only a partial explanation. Of course, this explanation is true and it interesting to see how Porsche tries to minimise the squeal.

It doesn’t explain how this squeal sometimes disappears and reappears. Vibration is a function of mass, so lots of dirt build up might chance the resonance frequency a bit. Over time discs wear down and loose a considerable amount of their mass and thus resonate at different frequency.

Part of the Squeal can be coming from the piston on the back of the piston, and or the sides of the pad. So applying some copperslip or ceramic paste might get rid of it.

On my Jaguar I get these squeals very very occasionally. I have found that certain pads make it worse, or better. My current pads rarely give me any problems. And it can be fixed by taking the pads off, cleaning evererything and remounting themwith copperslip on the appropriate touchpoints.

What also might help is to very lightly file down the spots on the calliper where the side of the pads touch. The idea being the smoother the surface the less friction and the less likely something will make anodise when resonating.

What is important and relevant is of course, there is absolutely nothing wrong with your brakes when this happens. It is just annoying, and you can to a good extend minimise it. Most brakes don’t squeal, so there is hope!

Jeroen

[Shubz]

Originally Posted by Jeroen

Part of the Squeal can be coming from the piston on the back of the piston, and or the sides of the pad. So applying some copperslip or ceramic paste might get rid of it.

On my Jaguar I get these squeals very very occasionally. I have found that certain pads make it worse, or better. My current pads rarely give me any problems. And it can be fixed by taking the pads off, cleaning evererything and remounting themwith copperslip on the appropriate touchpoints.

What also might help is to very lightly file down the spots on the calliper where the side of the pads touch. The idea being the smoother the surface the less friction and the less likely something will make anodise when resonating.

The copperslip thing was tried and it works for sometime and then the squeal is back again. But as you rightly said - there is no impact on the brakes, brakes work just about fine. It's just that whine that annoys and it stays on the mind, given the quietness inside the cabin.

My Honda city that's run almost 78k doesn't whine.

[evil_grin]

Originally Posted by Shubz

my Honda city that's run almost 78k doesn't whine.

My 107k run Honda City doesn't whine either. But my Octavia did when it was new, more so when it rained. It was an irritating noise. It went away after a few thousand kms.

Take your car to an expert FNG. They'll figure it out quickly.

[Shubz]

Originally Posted by evil_grin

My 107k run Honda City doesn't whine either. But my Octavia did when it was new, more so when it rained. It was an irritating noise. It went away after a few thousand kms.

Take your car to an expert FNG. They'll figure it out quickly.

The vehicle is under BSI/BRI - and if the FNG guys put up an extra scratch anywhere -- will only give a reason to the dealer to deny any service/warranty claims

So on my approx 800 plus round trip - this was ringing in my ears on the onward journey, mostly forgotten on the return journey.

I still wonder - same set (almost) on most cars - why only some whine - be it a Honda or a BMW -- and WHY MINE!!

[androdev]

Originally Posted by Shubz

and WHY MINE!!

Better to stop worrying about it. This is a very common issue with cars having big brakes. I too face this issue (brake noise when coming to a slow stop - like approaching a toll gate) and learned to live with it after few futile attempts to get it fixed.

Based on what I read, you can't have all these in a brake pad: dust-free, high-performance, quiet, long-life. My hypothesis is that OEMs prioritise performance and long-life over other two.