Hey (again group

Well, aircon's on the back burner again due to the following:

My girlfriend was on the way to work this morning when the brake-servo
seemed to give up the ghost - there was a total loss of brake pressure, in
any case. I've taken a look at the Haynes manual, but was wondering if
there's anyone here that can point me in the direction of the most likely
failure? The warning light was on (along with three beeps) when the failure
occurred.

Thanks for any help you can offer.

--
Chris
: )

 

Chris,
Does "total loss of brake pressure" mean that the pedal went to the floor,
or does it mean that you need superhuman strength to push on the brake pedal
to make the car stop? If the pedal went to the floor, chances are you
either have a leaking brake line, or the master cylinder has failed. The
other failure can be due to the failure of the "bomb" - hydraulic pressure
accumulator. There's a test on www.sjmautotechnik.com for it - the
accumulator lists for big bucks at the "usual suspects", but there is a guy
on the Audifans quattro list that is retrofitting accumulators to make them
rechargeable at any heavy equipment shop (that can supply 2000 psi
nitrogen) - I have one on my car (different guy, but same forum) and it has
worked well, but is in need of a recharge (they all lose pressure over
time).
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)


"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:4428fb9b$0$198$edfadb0f@dread11.news.tele.dk. ..
> Hey (again group
>
> Well, aircon's on the back burner again due to the following:
>
> My girlfriend was on the way to work this morning when the brake-servo
> seemed to give up the ghost - there was a total loss of brake pressure, in
> any case. I've taken a look at the Haynes manual, but was wondering if
> there's anyone here that can point me in the direction of the most likely
> failure? The warning light was on (along with three beeps) when the
> failure occurred.
>
> Thanks for any help you can offer.
>
> --
> Chris
> : )
>

 

Chris,
Does "total loss of brake pressure" mean that the pedal went to the floor,
or does it mean that you need superhuman strength to push on the brake pedal
to make the car stop? If the pedal went to the floor, chances are you
either have a leaking brake line, or the master cylinder has failed. The
other failure can be due to the failure of the "bomb" - hydraulic pressure
accumulator. There's a test on www.sjmautotechnik.com for it - the
accumulator lists for big bucks at the "usual suspects", but there is a guy
on the Audifans quattro list that is retrofitting accumulators to make them
rechargeable at any heavy equipment shop (that can supply 2000 psi
nitrogen) - I have one on my car (different guy, but same forum) and it has
worked well, but is in need of a recharge (they all lose pressure over
time).
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)


"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:4428fb9b$0$198$edfadb0f@dread11.news.tele.dk. ..
> Hey (again group
>
> Well, aircon's on the back burner again due to the following:
>
> My girlfriend was on the way to work this morning when the brake-servo
> seemed to give up the ghost - there was a total loss of brake pressure, in
> any case. I've taken a look at the Haynes manual, but was wondering if
> there's anyone here that can point me in the direction of the most likely
> failure? The warning light was on (along with three beeps) when the
> failure occurred.
>
> Thanks for any help you can offer.
>
> --
> Chris
> : )
>

 

Chris,
Does "total loss of brake pressure" mean that the pedal went to the floor,
or does it mean that you need superhuman strength to push on the brake pedal
to make the car stop? If the pedal went to the floor, chances are you
either have a leaking brake line, or the master cylinder has failed. The
other failure can be due to the failure of the "bomb" - hydraulic pressure
accumulator. There's a test on www.sjmautotechnik.com for it - the
accumulator lists for big bucks at the "usual suspects", but there is a guy
on the Audifans quattro list that is retrofitting accumulators to make them
rechargeable at any heavy equipment shop (that can supply 2000 psi
nitrogen) - I have one on my car (different guy, but same forum) and it has
worked well, but is in need of a recharge (they all lose pressure over
time).
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)


"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:4428fb9b$0$198$edfadb0f@dread11.news.tele.dk. ..
> Hey (again group
>
> Well, aircon's on the back burner again due to the following:
>
> My girlfriend was on the way to work this morning when the brake-servo
> seemed to give up the ghost - there was a total loss of brake pressure, in
> any case. I've taken a look at the Haynes manual, but was wondering if
> there's anyone here that can point me in the direction of the most likely
> failure? The warning light was on (along with three beeps) when the
> failure occurred.
>
> Thanks for any help you can offer.
>
> --
> Chris
> : )
>

 

"Steve Sears" <steve.sears@SHOESsoil-mat.on.ca> wrote in message
news:yabWf.1179$u15.259691@news20.bellglobal.com.. .
> Chris,
> Does "total loss of brake pressure" mean that the pedal went to the floor,
> or does it mean that you need superhuman strength to push on the brake
> pedal to make the car stop? If the pedal went to the floor, chances are
> you either have a leaking brake line, or the master cylinder has failed.
> The other failure can be due to the failure of the "bomb" - hydraulic
> pressure accumulator. There's a test on www.sjmautotechnik.com for it -
> the accumulator lists for big bucks at the "usual suspects", but there is
> a guy on the Audifans quattro list that is retrofitting accumulators to
> make them rechargeable at any heavy equipment shop (that can supply 2000
> psi nitrogen) - I have one on my car (different guy, but same forum) and
> it has worked well, but is in need of a recharge (they all lose pressure
> over time).

Hey Steve - thanks for the quick reply It seems that there's a leak in
the region of the rear-left caliper - oil mist on the inner-side of the
tyre, a small drip-pool where the car's been parked up today. Doesn't seem
like it should be a prob to sort, and cheaper in any case than replacing the
pressure accumulator; every cloud has it's silver lining

--
Chris
: )

 

"Steve Sears" <steve.sears@SHOESsoil-mat.on.ca> wrote in message
news:yabWf.1179$u15.259691@news20.bellglobal.com.. .
> Chris,
> Does "total loss of brake pressure" mean that the pedal went to the floor,
> or does it mean that you need superhuman strength to push on the brake
> pedal to make the car stop? If the pedal went to the floor, chances are
> you either have a leaking brake line, or the master cylinder has failed.
> The other failure can be due to the failure of the "bomb" - hydraulic
> pressure accumulator. There's a test on www.sjmautotechnik.com for it -
> the accumulator lists for big bucks at the "usual suspects", but there is
> a guy on the Audifans quattro list that is retrofitting accumulators to
> make them rechargeable at any heavy equipment shop (that can supply 2000
> psi nitrogen) - I have one on my car (different guy, but same forum) and
> it has worked well, but is in need of a recharge (they all lose pressure
> over time).

Hey Steve - thanks for the quick reply It seems that there's a leak in
the region of the rear-left caliper - oil mist on the inner-side of the
tyre, a small drip-pool where the car's been parked up today. Doesn't seem
like it should be a prob to sort, and cheaper in any case than replacing the
pressure accumulator; every cloud has it's silver lining

--
Chris
: )

 

"Steve Sears" <steve.sears@SHOESsoil-mat.on.ca> wrote in message
news:yabWf.1179$u15.259691@news20.bellglobal.com.. .
> Chris,
> Does "total loss of brake pressure" mean that the pedal went to the floor,
> or does it mean that you need superhuman strength to push on the brake
> pedal to make the car stop? If the pedal went to the floor, chances are
> you either have a leaking brake line, or the master cylinder has failed.
> The other failure can be due to the failure of the "bomb" - hydraulic
> pressure accumulator. There's a test on www.sjmautotechnik.com for it -
> the accumulator lists for big bucks at the "usual suspects", but there is
> a guy on the Audifans quattro list that is retrofitting accumulators to
> make them rechargeable at any heavy equipment shop (that can supply 2000
> psi nitrogen) - I have one on my car (different guy, but same forum) and
> it has worked well, but is in need of a recharge (they all lose pressure
> over time).

Hey Steve - thanks for the quick reply It seems that there's a leak in
the region of the rear-left caliper - oil mist on the inner-side of the
tyre, a small drip-pool where the car's been parked up today. Doesn't seem
like it should be a prob to sort, and cheaper in any case than replacing the
pressure accumulator; every cloud has it's silver lining

--
Chris
: )

 

Chris,
You may find that it's the flex line. You should replace all 4 flex lines
instead of just the one (they're all due). Be careful when disconnecting
the hard lines, if they're as stubborn as the ones on my car you'll need to
replace some hard line as well (luckily the local FLAPS has metric bubble
flared brake lines in various lengths). Don't go for the "bling" factor
stainless steel braided lines - the rubber lines are the way to go.
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)

"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:44294767$0$159$edfadb0f@dread11.news.tele.dk. ..
> Hey Steve - thanks for the quick reply It seems that there's a leak in
> the region of the rear-left caliper - oil mist on the inner-side of the
> tyre, a small drip-pool where the car's been parked up today. Doesn't seem
> like it should be a prob to sort, and cheaper in any case than replacing
> the pressure accumulator; every cloud has it's silver lining
>
> --
> Chris
> : )
>

 

Chris,
You may find that it's the flex line. You should replace all 4 flex lines
instead of just the one (they're all due). Be careful when disconnecting
the hard lines, if they're as stubborn as the ones on my car you'll need to
replace some hard line as well (luckily the local FLAPS has metric bubble
flared brake lines in various lengths). Don't go for the "bling" factor
stainless steel braided lines - the rubber lines are the way to go.
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)

"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:44294767$0$159$edfadb0f@dread11.news.tele.dk. ..
> Hey Steve - thanks for the quick reply It seems that there's a leak in
> the region of the rear-left caliper - oil mist on the inner-side of the
> tyre, a small drip-pool where the car's been parked up today. Doesn't seem
> like it should be a prob to sort, and cheaper in any case than replacing
> the pressure accumulator; every cloud has it's silver lining
>
> --
> Chris
> : )
>

 

Chris,
You may find that it's the flex line. You should replace all 4 flex lines
instead of just the one (they're all due). Be careful when disconnecting
the hard lines, if they're as stubborn as the ones on my car you'll need to
replace some hard line as well (luckily the local FLAPS has metric bubble
flared brake lines in various lengths). Don't go for the "bling" factor
stainless steel braided lines - the rubber lines are the way to go.
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)

"Chris G." <bloodygreycat@hotmail.com> wrote in message
news:44294767$0$159$edfadb0f@dread11.news.tele.dk. ..
> Hey Steve - thanks for the quick reply It seems that there's a leak in
> the region of the rear-left caliper - oil mist on the inner-side of the
> tyre, a small drip-pool where the car's been parked up today. Doesn't seem
> like it should be a prob to sort, and cheaper in any case than replacing
> the pressure accumulator; every cloud has it's silver lining
>
> --
> Chris
> : )
>