Brake pad life

[ihadablackdog]

Should the rear pads last longer than the fronts?

My thinking is that it’s the fronts that get more use?

When I got my car in March 18 the suppling crooks, sorry, stealer had done a botch job on the brakes...long story short, they paid for my local stealer to replace disks and pads all round (which I was quite happy about).

They did the fronts and rears about a month apart but I’ve just checked mileage and have done 23k miles.

Car is saying fronts have about 14k left but rears about 2.5k miles left.

Does this sound right?

 

[flybobbie]

No, i find they wear twice as quick as fronts.
Fronts i say good for upto 50k miles, rears say 30k?
Might be ebrake and and hill assist , stability wears them out.
Of course they may not have been able to reset the wear sensor.
I have my new rear sensors tied up, showing 2500 left. And won't reset, even tried a Foxwell reader, won't allow.
Been like that 2.5 years.

 

[ori]

When I had my e89 I found the rears would wear quicker and I did mostly motorway with that car.
It’s the first car I ever had where tears wore quicker than fronts.
I think it’s to do with the balance of the car. Just a guess!

 

[maxman]

It could be the mileage was not reset correctly.You need to get the wheels off to do a visual.

 

[Anonymous]

The stability control system (DSC) intervenes quite a lot (electronic diff effect, cornering control, traction control etc) and the rear brake is quite small so pad / disc wear is quite high. Also weight transfer is less die to revised chassis design so the relative amount of contribution to braking is higher than say the E85.

 

[enuff_zed]

The stability control system (DSC) intervenes quite a lot (electronic diff effect, cornering control, traction control etc) and the rear brake is quite small so pad / disc wear is quite high. Also weight transfer is less die to revised chassis design so the relative amount of contribution to braking is higher than say the E85.

I think that is exactly the point yes.
I got really fed up with the constant build up of brake dust on the rear wheels, but once I'd had the car a while and was happy with it I started turning off as much of the DSC as the car will allow and the build up of dust has noticeably reduced.
(Or maybe I'm driving like Granny? :? )

 

[ihadablackdog]

Thanks, at least I now know the rears wearing quicker than the fronts is normal, that was the main thing making me suspicious.

Don’t think I’d have the confidence to start turning the cars systems off....think I’d run out of driving talent too quickly.

 

[enuff_zed]

Thanks, at least I now know the rears wearing quicker than the fronts is normal, that was the main thing making me suspicious.

Don’t think I’d have the confidence to start turning the cars systems off....think I’d run out of driving talent too quickly.

Well I drove Capris for nigh on 30 years, so I got used to arriving backwards at the scene of the accident.

Tbh, since the remap I have been a little more conservative with my button pushing too.

 

[Busterboo]

I got really fed up with the constant build up of brake dust on the rear wheels

Mine's the opposite. Heavy brake dust on the fronts. :?

 

[Argyll Andy]

I got really fed up with the constant build up of brake dust on the rear wheels

Mine's the opposite. Heavy brake dust on the fronts. :?

+1 my fronts are much worse, wheels look gunmetal after a long day out

 

[Anonymous]

I got really fed up with the constant build up of brake dust on the rear wheels

Mine's the opposite. Heavy brake dust on the fronts. :?

+1 my fronts are much worse, wheels look gunmetal after a long day out

35is have larger and thicker front brakes and the rears are larger with different pad design.

35is are heavier (and more powerful) and more weight is more forward biased.

The DCS parameters may be different..

Driving style will effect matters, heavy braking will engender much greater use of the front brakes.

 

[Argyll Andy]

Mine's the opposite. Heavy brake dust on the fronts. :?

+1 my fronts are much worse, wheels look gunmetal after a long day out

35is have larger and thicker front brakes and the rears are larger with different pad design.

35is are heavier (and more powerful) and more weight is more forward biased.

The DCS parameters may be different..

Driving style will effect matters, heavy braking will engender much greater use of the front brakes.

Which I think in layman’s terms is Peter telling me - less go pedal = less stop pedal = less brake dust = it’s your own fault

 

[Anonymous]

+1 my fronts are much worse, wheels look gunmetal after a long day out

35is have larger and thicker front brakes and the rears are larger with different pad design.

35is are heavier (and more powerful) and more weight is more forward biased.

The DCS parameters may be different..

Driving style will effect matters, heavy braking will engender much greater use of the front brakes.

Which I think in layman’s terms is Peter telling me - less go pedal = less stop pedal = less brake dust = it’s your own fault

You might say that, I might think that, I couldn't possibly comment....

Seriously I could see if you are into a point,squirt,brake method of driving then you can see how the dust bias may move forward!

I think you tend to see a slightly different style of driving with N20 versus N54 cars. I was shocked how badly both the rear discs and pads were worn on mine.

 

[Busterboo]

Talking of driving style, when in a hurry I use the DCT box in Sport+ manually, which includes changing down and braking at the same time. Not only to be in the right gear when pulling away, but also for the gearbox to help the brakes.

 

[raymond.harper]

It could also be that as money was a consideration, they used the cheapest pads and discs they could find which as we all know, do not last long.

 

[enuff_zed]

35is have larger and thicker front brakes and the rears are larger with different pad design.

35is are heavier (and more powerful) and more weight is more forward biased.

The DCS parameters may be different..

Driving style will effect matters, heavy braking will engender much greater use of the front brakes.

Which I think in layman’s terms is Peter telling me - less go pedal = less stop pedal = less brake dust = it’s your own fault

You might say that, I might think that, I couldn't possibly comment....

Seriously I could see if you are into a point,squirt,brake method of driving then you can see how the dust bias may move forward!

I think you tend to see a slightly different style of driving with N20 versus N54 cars. I was shocked how badly both the rear discs and pads were worn on mine.

Or maybe less forward thinking = Less time to adjust = more late braking = more dust?

Or just that the 35iS boys are too busy checking to see who's looking at them in their 'flashy cars' to see what's happening up front.
(Need a smiley for someone rolling a grenade in and running away. )

 

[Argyll Andy]

Which I think in layman’s terms is Peter telling me - less go pedal = less stop pedal = less brake dust = it’s your own fault

You might say that, I might think that, I couldn't possibly comment....

Seriously I could see if you are into a point,squirt,brake method of driving then you can see how the dust bias may move forward!

I think you tend to see a slightly different style of driving with N20 versus N54 cars. I was shocked how badly both the rear discs and pads were worn on mine.

Or maybe less forward thinking = Less time to adjust = more late braking = more dust?

Or just that the 35iS boys are too busy checking to see who's looking at them in their 'flashy cars' to see what's happening up front.
(Need a smiley for someone rolling a grenade in and running away. )

Less time to adjust I agree........... because we’re travelling so quickly

All we’re checking for is how small a straight we need to whip past you N20 boys who are impeding our progress, we don’t travel slow enough for people to admire our stunning cars, they do that when we stop to eat or refuel

This’ll do for your emoji problem :exitright:

 

[Argyll Andy]

Talking of driving style, when in a hurry I use the DCT box in Sport+ manually, which includes changing down and braking at the same time. Not only to be in the right gear when pulling away, but also for the gearbox to help the brakes.

+1, exactly how I drive mine, particularly foe exiting corners so it on power the whole time

 

[enuff_zed]

You might say that, I might think that, I couldn't possibly comment....

Seriously I could see if you are into a point,squirt,brake method of driving then you can see how the dust bias may move forward!

I think you tend to see a slightly different style of driving with N20 versus N54 cars. I was shocked how badly both the rear discs and pads were worn on mine.

Or maybe less forward thinking = Less time to adjust = more late braking = more dust?

Or just that the 35iS boys are too busy checking to see who's looking at them in their 'flashy cars' to see what's happening up front.
(Need a smiley for someone rolling a grenade in and running away. )

Less time to adjust I agree........... because we’re travelling so quickly

All we’re checking for is how small a straight we need to whip past you N20 boys who are impeding our progress, we don’t travel slow enough for people to admire our stunning cars, they do that when we stop to eat or refuel

This’ll do for your emoji problem :exitright:

He shoots................. he scores!

(Gonna need a bigger boat.)

 

[Busterboo]

Talking of driving style, when in a hurry I use the DCT box in Sport+ manually, which includes changing down and braking at the same time. Not only to be in the right gear when pulling away, but also for the gearbox to help the brakes.

+1, exactly how I drive mine, particularly foe exiting corners so it on power the whole time