83 ur quattro brakes

Jayboy · 20-05-10, 03:39 PM

Hi everybody my quattro brakes are really soft, nearly going to the floor, Ive replace the bomb, master cylinder and all brake hoses pressure bled the syatem with a gunstons easy bleed, my next option seems to be the hi and low pressure switches on the assist regulator unit. (oh yes power steering is fine so I presume I have enough pressure)
Has anyone got any other ideas or where I can get these pesky pressure switches from
Cheers jay

swiggett · 20-05-10, 06:27 PM

you could try peter at quattro corner or Adam at AM Cars

kerker21 · 20-05-10, 07:00 PM

it will be air , i used an easy bleed on mine and had the same result check the presure on the side of the easy bleed bottle to bleed it properly its quite low , the first time i just hooked up to the tyre and set about bleeding but it caurses micro bubbles in the fluid hence no presure , in the end i got a seely vacume bleeder from my local motor factors which works of a compresor and fits on the nipples and sucks the fluid through instead of forcing it i think it was £12 a couple of years back and i got a small compresor from b&q for £25 it works a treat and i ended up with the best break pedal i have ever had . here you go this is the one i have on ebay http://cgi.ebay.co.uk/Sealey-Vacuum-...item2a0632a809

john...

Darron Edwards · 20-05-10, 10:41 PM

I may have a switch that you can have...I'll have a root around my shed next week matey. Daz

Jayboy · 25-05-10, 04:10 AM

Thankyou I am going to give the brakes another bleed and see what happens

Jayboy · 16-06-10, 09:42 PM

Finallly found the fault the brake compensator valve (front/rear) had a tiny leak drawing in air got a second hand one from Vaudi that one leaked as well, does anyone know where I can get a new/second hand one from or even a overhaul kit? I only need this for the mot are they used on other Audi's?

steveb · 17-06-10, 07:02 AM

Pete at quattro corner, i think you have to fit the later one now as the original is NLA

20-05-10, 07:00 PM	#3
kerker21 Senior Member Classic Audi Club Member Join Date: Jul 2007 Posts: 1,412	it will be air , i used an easy bleed on mine and had the same result check the presure on the side of the easy bleed bottle to bleed it properly its quite low , the first time i just hooked up to the tyre and set about bleeding but it caurses micro bubbles in the fluid hence no presure , in the end i got a seely vacume bleeder from my local motor factors which works of a compresor and fits on the nipples and sucks the fluid through instead of forcing it i think it was £12 a couple of years back and i got a small compresor from b&q for £25 it works a treat and i ended up with the best break pedal i have ever had . here you go this is the one i have on ebay http://cgi.ebay.co.uk/Sealey-Vacuum-...item2a0632a809 john... __________________ chairman of the quattro owners club 85 UR WR Quattro 52 ford transit faf specialised big hit mtb ex Z1000R owner ex KTM Duke owner

20-05-10, 10:41 PM	#4
Darron Edwards Senior Member Classic Audi Club Member Join Date: Jul 2008 Location: Shropshire Posts: 1,855	I may have a switch that you can have...I'll have a root around my shed next week matey. Daz __________________ 1981 ur quattro CA chassis LHD 1982 ur quattro CA chassis RHD 1986 ur quattro GA chassis - Alpine White 1986 ur quattro GA chassis - Graphite Black

17-06-10, 07:02 AM	#7
steveb Senior Member Classic Audi Club Member Join Date: Jul 2008 Location: West Berkshire Posts: 1,155	Pete at quattro corner, i think you have to fit the later one now as the original is NLA __________________ [FONT] '76 Leyland Princess 2200 HLS '79 Scirocco storm '84 WR '89 coupe quattro '01 A2 1.4 TDI SE '14 A3 1.4 TFSI COD [/color][/size][/font]

20-05-10, 06:27 PM	#2
swiggett Grown up member Join Date: Dec 2009 Posts: 83	you could try peter at quattro corner or Adam at AM Cars

25-05-10, 04:10 AM	#5
Jayboy Newbie! Join Date: May 2009 Location: Bridgend south Wales Posts: 11	Thankyou I am going to give the brakes another bleed and see what happens

16-06-10, 09:42 PM	#6
Jayboy Newbie! Join Date: May 2009 Location: Bridgend south Wales Posts: 11	Finallly found the fault the brake compensator valve (front/rear) had a tiny leak drawing in air got a second hand one from Vaudi that one leaked as well, does anyone know where I can get a new/second hand one from or even a overhaul kit? I only need this for the mot are they used on other Audi's?