Braking issue

[vr2turbo]

But it's always made that noise, even when the garage fitted new discs and brakes

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Oh! New disc and pads fitted. Then need to take out and check, maybe service the pins and sand the pads before fitting back....

 

[lukel95]

Oh! New disc and pads fitted. Then need to take out and check, maybe service the pins and sand the pads before fitting back....

Okay thank you, any specific grit of sand paper?

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[vr2turbo]

Okay thank you, any specific grit of sand paper?

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No need too rough, just need to smoothen the pads surface and get rid of any debris stuck on it.....

 

[lukel95]

No need too rough, just need to smoothen the pads surface and get rid of any debris stuck on it.....

Cheers will give that a go

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[Izso]

service your calipers while you're at it. And check for brake pad material depth.

 

[gunnerzz]

After reading more abt the problem description i am starting to think its the rotor cover that is causing the problem. Happen before to me on a Neo CPS.
the rotor cover dislodged and scrape the brake disc.check on the inner side of the disc,most probably there is already uneven wear on the inside. When i encounter the problem it will happen during and after braking and while turning full lock.
the rotor cover needs some muscle to put back into place.

 

[vr2turbo]

After reading more abt the problem description i am starting to think its the rotor cover that is causing the problem. Happen before to me on a Neo CPS.
the rotor cover dislodged and scrape the brake disc.check on the inner side of the disc,most probably there is already uneven wear on the inside. When i encounter the problem it will happen during and after braking and while turning full lock.
the rotor cover needs some muscle to put back into place.

Wah! means that cover pretty thick. Mine just a thin piece of metal sheet easily can bend......lol

 

[lukel95]

After reading more abt the problem description i am starting to think its the rotor cover that is causing the problem. Happen before to me on a Neo CPS.
the rotor cover dislodged and scrape the brake disc.check on the inner side of the disc,most probably there is already uneven wear on the inside. When i encounter the problem it will happen during and after braking and while turning full lock.
the rotor cover needs some muscle to put back into place.

By cover do you mean the heat/splash shield behind the rotor, I have checked that before and wasn't touching it but I'll have another look, can you take them off or are they nessecary to keep on?

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[vr2turbo]

By cover do you mean the heat/splash shield behind the rotor, I have checked that before and wasn't touching it but I'll have another look, can you take them off or are they nessecary to keep on?

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Is there for a reason.....lol

 

[gunnerzz]

By cover do you mean the heat/splash shield behind the rotor, I have checked that before and wasn't touching it but I'll have another look, can you take them off or are they nessecary to keep on?

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remove the tire when u want to check.
check properly on the inner side of the disc and the rotor cover which faces the inner side of the disc.
yours could be at early stage so no holes yet on the rotor cover.

another issue could come from cheap aftermarket pad which is not flat.
either the outer circle or the inner circle of the disc will come into contact with the pad when you step on the brake. this is worse as you wont have full brake power when u needs it.

a jammed brake piston can causes such problem too but most of the time you will have overheated brake.

 

[lukel95]

remove the tire when u want to check.
check properly on the inner side of the disc and the rotor cover which faces the inner side of the disc.
yours could be at early stage so no holes yet on the rotor cover.

another issue could come from cheap aftermarket pad which is not flat.
either the outer circle or the inner circle of the disc will come into contact with the pad when you step on the brake. this is worse as you wont have full brake power when u needs it.

a jammed brake piston can causes such problem too but most of the time you will have overheated brake.

If they are cheap aftermarket pads only part connecting with the rotars like you say, will that make the light scrapping sound? They probably are cheap crap ones as the garage that did them 'mot' the car and let me leave the garage with fuel pouring out the fuel filter, is there a way of knowing they are cheap crap or just trial and error buying new good ones?

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[vr2turbo]

Mintex brand quite well known here and is from UK. Maybe can try that.....

 

[lukel95]

Mintex brand quite well known here and is from UK. Maybe can try that.....

Yeah mintex and apec are common, should I try sanding the pads first?

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[vr2turbo]

Yeah mintex and apec are common, should I try sanding the pads first?

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Take out try and see if you can tell what pads are they. Should have some marking on the back....

 

[lukel95]

Take out try and see if you can tell what pads are they. Should have some marking on the back....

Update..I've just noticed that the scratching noise will start if I'm going down a hill in 3rd at 30mph and shift down to 2nd.. and im sure it gets quieter if i put my clutch in, what could this be? Bearing?

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[vr2turbo]

Update..I've just noticed that the scratching noise will start if I'm going down a hill in 3rd at 30mph and shift down to 2nd.. and im sure it gets quieter if i put my clutch in, what could this be? Bearing?

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Clutch release bearing?:hmmmm:

 

[lukel95]

Clutch release bearing?:hmmmm:

Would the clutch release bearing make the noise when braking to a stop though?

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[vr2turbo]

Would the clutch release bearing make the noise when braking to a stop though?

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Just wondering now is it brakes issue or clutch, because you say press clutch less noise....

 

[lukel95]

Just wondering now is it brakes issue or clutch, because you say press clutch less noise....

Yeah it's so frustrating and confusing

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[kayour]

..or from the gearbox?