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[bob.dent]

When braking quite heavily from fairly high speed, I've started getting a kind of rumbling noise from my brakes combined with a bit of brake fade. There's no warning coming up that the brake pads are worn but they haven't been changed since I've had the car so they probably haven't been changed for a good couple of years.

Could this mean the pads just want changing or could it be something else?

[feeutfo]

got to be worth checking pads as first port of call. Do you know for sure that the wear sensors are connected?

[bob.dent]

got to be worth checking pads as first port of call. Do you know for sure that the wear sensors are connected?

TBH I don't know for sure but I think I'll book it in for a check anyway.

[cem_devecioglu]

Discs are also worth checking I think..They may be warped..

[bob.dent]

Discs are also worth checking I think..They may be warped..

Don't think the discs are warped as there's no wobble on the pedal when breaking. :-/

[Hoffi]

Sounds to me as if the disks are on the verge of life.

What you experienced happens when the heat cant't be taken away from the brakes properly, especially on the front as they are taking the most of the force when braking.
So either when your discs are new they might be dodgy ones or they are almost gone. Except there is a generell overheating problem with the Omegas?!?
As just seen the other comments: The whobbling pedal would come after some of that braking action as a result that the disks would deform through the quite enourmous heat that is developed.

Having them checked would have been my recommendation too! When there is a noise NEVER rely on your sensors!!!!

[bob.dent]

Sounds to me as if the disks are on the verge of life.

What you experienced happens when the heat cant't be taken away from the brakes properly, especially on the front as they are taking the most of the force when braking.
So either when your discs are new they might be dodgy ones or they are almost gone.

Having them checked would have been my recommendation too!

That makes sense - I just spoke to my mechanic and he agreed, so it's booked in for next week for a check.

[omegaman2]

at my last mot an advisory on discs was isued no wear could be seen through the alloy wheels but the wear was on the inner side of the discs  and the feeling you are getting is the one ia getting now under heavy braking  so new discs and opads are going on next pay day

[Markie]

Come on Bob, the speed you drive at ( i`ve been a passenger remember) get yer wallet open and spanners out.

Change of discs and pads all round if they havent been done in 2 years  

[cem_devecioglu]

if you make any change on the pads and discs dont forget to  drive slowly as the surfaces need to match..

[bob.dent]

Come on Bob, the speed you drive at ( i`ve been a passenger remember) get yer wallet open and spanners out.

Change of discs and pads all round if they havent been done in 2 years  

Ah, that was purely for demonstration purposes!!

Yep, I'm pretty sure new discs and pads will be going on next week.

[bob.dent]

if you make any change on the pads and discs dont forget to  drive slowly as the surfaces need to match..

Thanks Cem, I always do take it easy for a few days when new discs or pads are fitted.

[dbug]

Thin (worn) disks & knackered pads = poor heat dissipation

[jb]

worth checking your front caliper sliders for seizure

[Entwood]

if you make any change on the pads and discs dont forget to  drive slowly as the surfaces need to match..

I would tend to disagree with the broadness of this statement .. it is correct for the initial period, but a tad more needs to be done ...

Interesting article on "bedding in" of brakes can be found here ..

http://www.powerbrake.co.za/tech_info/tech_02_bedin.htm

HTH