Pad wear indicator?
#11
Guest
Posts: n/a
Re: Pad wear indicator?
"Pete" <escape2music@hotmail.com> wrote in message
news:br7a0t$nmf$1@news.onet.pl...
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
And the rears have to put up with a lot or rubbish churned up by the front
wheels, and they often don't have enough work to do either, causing rust on
the discs and excess wear on the pads. The apparent paradox that the rears
wear quicker than the fronts is familiar to many Audi (and Golf GTI)
drivers.
Regards
Jonathan
news:br7a0t$nmf$1@news.onet.pl...
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
And the rears have to put up with a lot or rubbish churned up by the front
wheels, and they often don't have enough work to do either, causing rust on
the discs and excess wear on the pads. The apparent paradox that the rears
wear quicker than the fronts is familiar to many Audi (and Golf GTI)
drivers.
Regards
Jonathan
#12
Guest
Posts: n/a
Re: Pad wear indicator?
> 3. Occasionally driving around with the handbrake on (sometimes people
> don't notice if it's up one or two clicks).
Never my case. The only abuse I can think of would come as a result of
abrupt starts - thus involving EDS - which is not my case either, and the
occasional brief drifting session on a deserted icy car park, but both of
these should affect the fronts more than the rear as the brakes will need to
counteract a bigger front torque contribution.
#13
Guest
Posts: n/a
Re: Pad wear indicator?
> Our cars do not have rear brake pads with wear
> sensors. Only fronts do. That goes for both B5
I was told by the dealer my B5 doesn't have sensors at the front either, did
you check that the wires you see in yours are not just ABS's?
> and B6 A4
Anyone with a B6 to confirm this?
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
An excellent explanation, but why the heck are the rears so very thin? On
average the fronts will last twice as long as the rears in my car!
> sensors. Only fronts do. That goes for both B5
I was told by the dealer my B5 doesn't have sensors at the front either, did
you check that the wires you see in yours are not just ABS's?
> and B6 A4
Anyone with a B6 to confirm this?
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
An excellent explanation, but why the heck are the rears so very thin? On
average the fronts will last twice as long as the rears in my car!
#14
Guest
Posts: n/a
Re: Pad wear indicator?
"JP Roberts" <1234@yahoo.com> wrote in message
news:br80ln$iui$1@news.ya.com...
> I was told by the dealer my B5 doesn't have sensors at the front either,
did
> you check that the wires you see in yours are not just ABS's?
Well, my B5 is a 2001 and it definitely has front brake pad wear sensors.
As a matter of fact, I had new EBC Green pads put on today, and they had
wear sensor wires/connection that had to be plugged in after disconnecting
the plugs from the old OEM pads. I am looking at the EBC brake catalog as
we speak, and even for 95-99 A4s they have pads with wear sensors, although
slightly different connector shape. So, I'm 99% sure your car should have
them.
> An excellent explanation, but why the heck are the rears so very thin? On
> average the fronts will last twice as long as the rears in my car!
I hear ya. I had pads replaced on all 4 corners today, and the rears were
worn out way more than the fronts.
Cheers,
Pete
#15
Guest
Posts: n/a
Re: Pad wear indicator?
"Pete" <escape2music@hotmail.com> wrote in message
news:br7a0t$nmf$1@news.onet.pl...
>
> "JP Roberts" <1234@yahoo.com> wrote in message
> news:br7133$84s$1@news.ya.com...
> >
> > What about B6's? Do they get that stock?
>
> Well, he was correct. Our cars do not have rear brake pads with wear
> sensors. Only fronts do. That goes for both B5 and B6 A4, and I'm pretty
> sure the S4 as well.
>
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
Ahem. I believe that between 70-98% of the braking force acts on the front
wheels only.. don't know specifically for Audis.
Does /that/ help? ;o)
H1K
news:br7a0t$nmf$1@news.onet.pl...
>
> "JP Roberts" <1234@yahoo.com> wrote in message
> news:br7133$84s$1@news.ya.com...
> >
> > What about B6's? Do they get that stock?
>
> Well, he was correct. Our cars do not have rear brake pads with wear
> sensors. Only fronts do. That goes for both B5 and B6 A4, and I'm pretty
> sure the S4 as well.
>
> As far as why the rears wear out faster, I can think of two reasons:
>
> 1. The pads are thinner to begin with.
> 2. The rear rotors are not vented, which means they don't dissipate heat
as
> efficiently as the fronts do. Higher operating temperatures cause the
pads
> to wear out quicker.
Ahem. I believe that between 70-98% of the braking force acts on the front
wheels only.. don't know specifically for Audis.
Does /that/ help? ;o)
H1K
#16
Guest
Posts: n/a
Re: Pad wear indicator?
"Hairy One Kenobi" <abuse@[127.0.0.1]> wrote in message news:VXLBb.578
> Ahem. I believe that between 70-98% of the braking force acts on the front
> wheels only.. don't know specifically for Audis.
>
> Does /that/ help? ;o)
That's generally true, although I don't know the exact percentages. It
still doesn't change the fact that the front pads are thicker and work in
less stressful (better heat dissipation) conditions.
Cheers,
Pete
#17
Guest
Posts: n/a
Re: Pad wear indicator?
"Pete" <escape2music@hotmail.com> wrote in message
news:br81tl$lr0$1@news.onet.pl...
> So, I'm 99% sure your car should have
> them.
Ooops! Scratch that idea. A quick search through AudiWorld archives shows
that in 1998, the A4 did not even have front brake pad wear sensors. That
only started in 1999. Sorry about that.
Cheers,
Pete
#18
Guest
Posts: n/a
Re: Pad wear indicator?
On Wed, 10 Dec 2003 09:15:00 +0100, "Pete" <escape2music@hotmail.com> wrote:
>
>"Iain Miller" <donot@spam.me> wrote in message
>news:iFuBb.688$Qk.556@newsfep4-
>
>> My wife's 96 A4 avant does - you get this very informative kinda grinding
>> noise!
>
>LOL!!!
Even funnier if he *wasn't* referring to the car
>
>"Iain Miller" <donot@spam.me> wrote in message
>news:iFuBb.688$Qk.556@newsfep4-
>
>> My wife's 96 A4 avant does - you get this very informative kinda grinding
>> noise!
>
>LOL!!!
Even funnier if he *wasn't* referring to the car
#19
Guest
Posts: n/a
Re: Pad wear indicator?
Thanks Pete, I was beginning to think my A4 was the ugly duckling out there.
JP Roberts
"Pete" <escape2music@hotmail.com> escribió en el mensaje
news:br8335$dnl$1@news.onet.pl...
>
> "Pete" <escape2music@hotmail.com> wrote in message
> news:br81tl$lr0$1@news.onet.pl...
> > So, I'm 99% sure your car should have
> > them.
>
> Ooops! Scratch that idea. A quick search through AudiWorld archives
shows
> that in 1998, the A4 did not even have front brake pad wear sensors. That
> only started in 1999. Sorry about that.
>
> Cheers,
>
> Pete
>
>
JP Roberts
"Pete" <escape2music@hotmail.com> escribió en el mensaje
news:br8335$dnl$1@news.onet.pl...
>
> "Pete" <escape2music@hotmail.com> wrote in message
> news:br81tl$lr0$1@news.onet.pl...
> > So, I'm 99% sure your car should have
> > them.
>
> Ooops! Scratch that idea. A quick search through AudiWorld archives
shows
> that in 1998, the A4 did not even have front brake pad wear sensors. That
> only started in 1999. Sorry about that.
>
> Cheers,
>
> Pete
>
>
#20
Guest
Posts: n/a
Re: Pad wear indicator?
My -98 A6 only has pad wear indicators on the front brakes (as these are
supposed to wear out first I'm told).
If your rear pads always wear out first I'd say your rear calipers are
stuck/partly stuck and needs to be moved up/replaced.
This is very common here (Norway) due to salting of roads during winter.
Regards
Rune
"JP Roberts" <1234@yahoo.com> wrote in message
news:br7133$84s$1@news.ya.com...
> It so happened I took my car to the stealership for routinely inspection
> last year, before starting my Xmas holiday - which I meant to fit some
> skiing in. As I started driving up a winding road I could hear some kind
of
> brake noise - even without touching the brake pedal - on left bends. I
tried
> braking hard because I thought a bit of rust might have settled in, and
all
> of this was to no avail.
>
> Since the stealer'd told me everything was fine after inspection, it took
an
> enquiring mind to get a torch and check the rear pads - which funnily
enough
> always wear faster than the fronts in my car, and there the culprit was, I
> needed new rear pads. I carried on to the skiing resort making use of the
> shortest gears possible and of as much anticipation as I was capable of,
and
> the next day I had my pads replaced.
>
> When I mentioned this to the stealer and I said how appalled I was at both
> their service and the fact that no wear indicator light turned on on my
> board, he said that of course, only S's have that stock - which is not
true,
> either, as my father's A6 does have the little twinkly.
>
> What about B6's? Do they get that stock?
>
> Regards,
>
> JP Roberts
>
>
>
>
> "Hairy One Kenobi" <abuse@[127.0.0.1]> escribió en el mensaje
> news:M%sBb.560$rr3.3915@newsfep4-glfd.server.ntli.net...
> > "JP Roberts" <1234@yahoo.com> wrote in message
> > news:br5huj$787$1@news.ya.com...
> > > My '98 A4 does not warn me against pad wear, does yours?
> > >
> > > This is a clear case of underengineering!
> > >
> > > JP Roberts
> > >
> > > P.S: Even my old Citroen used to have one!
> >
> > It should do. Mandatory fit, I thought.
> >
> > Mind you, a lot depends upon how deep that little loop of wire is buried
> in
> > the material of the front pads.. how did you find out? Metal-on-metal?
> >
> > --
> >
> > Hairy One Kenobi
> >
> > Disclaimer: the opinions expressed in this opinion do not necessarily
> > reflect the opinions of the highly-opinionated person expressing the
> opinion
> > in the first place. So there!
> >
> >
>
>
supposed to wear out first I'm told).
If your rear pads always wear out first I'd say your rear calipers are
stuck/partly stuck and needs to be moved up/replaced.
This is very common here (Norway) due to salting of roads during winter.
Regards
Rune
"JP Roberts" <1234@yahoo.com> wrote in message
news:br7133$84s$1@news.ya.com...
> It so happened I took my car to the stealership for routinely inspection
> last year, before starting my Xmas holiday - which I meant to fit some
> skiing in. As I started driving up a winding road I could hear some kind
of
> brake noise - even without touching the brake pedal - on left bends. I
tried
> braking hard because I thought a bit of rust might have settled in, and
all
> of this was to no avail.
>
> Since the stealer'd told me everything was fine after inspection, it took
an
> enquiring mind to get a torch and check the rear pads - which funnily
enough
> always wear faster than the fronts in my car, and there the culprit was, I
> needed new rear pads. I carried on to the skiing resort making use of the
> shortest gears possible and of as much anticipation as I was capable of,
and
> the next day I had my pads replaced.
>
> When I mentioned this to the stealer and I said how appalled I was at both
> their service and the fact that no wear indicator light turned on on my
> board, he said that of course, only S's have that stock - which is not
true,
> either, as my father's A6 does have the little twinkly.
>
> What about B6's? Do they get that stock?
>
> Regards,
>
> JP Roberts
>
>
>
>
> "Hairy One Kenobi" <abuse@[127.0.0.1]> escribió en el mensaje
> news:M%sBb.560$rr3.3915@newsfep4-glfd.server.ntli.net...
> > "JP Roberts" <1234@yahoo.com> wrote in message
> > news:br5huj$787$1@news.ya.com...
> > > My '98 A4 does not warn me against pad wear, does yours?
> > >
> > > This is a clear case of underengineering!
> > >
> > > JP Roberts
> > >
> > > P.S: Even my old Citroen used to have one!
> >
> > It should do. Mandatory fit, I thought.
> >
> > Mind you, a lot depends upon how deep that little loop of wire is buried
> in
> > the material of the front pads.. how did you find out? Metal-on-metal?
> >
> > --
> >
> > Hairy One Kenobi
> >
> > Disclaimer: the opinions expressed in this opinion do not necessarily
> > reflect the opinions of the highly-opinionated person expressing the
> opinion
> > in the first place. So there!
> >
> >
>
>