Brake bleeding order?

Gmac · 17-12-16, 08:23 AM

Morning all!

Following on from my fluid question... Does anyone happen to know what order I should be be bleeding the brakes? (I could do with picking up a Haynes manual!)

TIA

cjp0349 · 17-12-16, 09:46 AM

Quote:

Originally Posted by Gmac

Morning all!

(I could do with picking up a Haynes manual!)

TIA

So could we all...But there isn't one!

In the Haynes manuals I have for the B1 and B2 and the early 90s Polo the sequence is right hand rear, left hand rear, rh front, lh front. Can't see any reason it shouldn't be the same for the B4

I think the theory is start with the wheel furthest from the reservoir and work to the closest

Ben · 17-12-16, 10:42 AM

Bleed the master cylinder first and don't forget to do the clutch slave cylinder too.

Hanuman · 17-12-16, 11:36 AM

I'm curious if it matters that much, even though they suggest a bleeding order.

If it's anything like other models, then front left and right are separate feeds from the master cylinder anyway. Looking at the parts catalog, 7zap, the rears also are separate feeds, then possibly through a pressure regulator/reducer to the rear.
Push fluid through, bleed the cylinder, then the lines, so that fresh fluid and any locked air ends up at the bleeds progressively further from the cylinder.

Just make sure the pressure reducer is working!

John. · 17-12-16, 01:42 PM

Quote:

Originally Posted by cjp0349

So could we all...But there isn't one!

I think the theory is start with the wheel furthest from the reservoir and work to the closest

There is a Haynes manual

As you say theory is furthest wheel first etc.

I'd agree changing the fluid in the clutch line as also mentioned

cjp0349 · 17-12-16, 03:02 PM

Quote:

Originally Posted by John.

There is a Haynes manual

As it's panto season John, I'll start it off

OH NO THERE ISN'T!!

John. · 17-12-16, 04:50 PM

Quote:

Originally Posted by cjp0349

As it's panto season John, I'll start it off

OH NO THERE ISN'T!!

Ok B3.......close enough. For the likes of brakes the basics are the same.

On the subject of panto, where's Cinderella?

Gmac · 18-12-16, 09:05 AM

Got the brakes bled!

Can't believe there's no b4 Haynes manual!!

17-12-16, 10:42 AM	#3
Ben 4 ring whore! Classic Audi Club Member Join Date: Mar 2008 Location: Stockport Posts: 2,348	Bleed the master cylinder first and don't forget to do the clutch slave cylinder too. __________________ 1992 80 quattro 20vt

17-12-16, 11:36 AM	#4
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	I'm curious if it matters that much, even though they suggest a bleeding order. If it's anything like other models, then front left and right are separate feeds from the master cylinder anyway. Looking at the parts catalog, 7zap, the rears also are separate feeds, then possibly through a pressure regulator/reducer to the rear. Push fluid through, bleed the cylinder, then the lines, so that fresh fluid and any locked air ends up at the bleeds progressively further from the cylinder. Just make sure the pressure reducer is working! __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor Last edited by Hanuman; 17-12-16 at 04:36 PM.

18-12-16, 09:05 AM	#8
Gmac Grown up member Classic Audi Club Member Join Date: Feb 2015 Location: Aberdeenshire Posts: 686	Got the brakes bled! Can't believe there's no b4 Haynes manual!!