Author Topic: Bleed Brakes in what order  (Read 3581 times)

November 20, 2006, 03:40:37 pm

shwartzbewithyou

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Bleed Brakes in what order
« on: November 20, 2006, 03:40:37 pm »
I know this question has probably been asked 100 times but i searched and can't find any posts regarding it.  Is there an order in which you should bleed the brakes on a VW?  Most cars have a recommended pattern.

Thanks



Reply #1November 21, 2006, 02:21:13 am

LeeG

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Bleed Brakes in what order
« Reply #1 on: November 21, 2006, 02:21:13 am »
I used to do brakes for a living and I never saw a car that had to be bled in a certain order.  If the system was drained dry, I'd blead master, then work from lowest bleader to highest, then check for air at master again.  Keep going until all the air is gone.  

If you have trouble, you have to get the fluid flowing in the lines fast enough that the air doesn't keep bubbling up the line to a high spot.  Easiest way to do that is to have a friend slowly (say 5 seconds per stroke) stroke the pedal 3/4 the way to floor repeatedly while you hold a finger loosly over a bleader as a check valve  to let fluid and air out, but not back in.  

Another trick to flush air out of a stubborn high spot is to have helper put pressure on the system while you momemtarily open and close a bleader.  Don't let your helper get th epedal right to the floor.   This procedure will likely trip brake bias warning switches on cars so equipped, reset by opening a bleader at opposite end of car a tiny bit, have a bit of pressure put on brake until you hear/feel the switch snap back, then close bleader.
'97 Passat TDI

Reply #2November 21, 2006, 10:02:10 am

saurkraut

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Bleed Brakes in what order
« Reply #2 on: November 21, 2006, 10:02:10 am »
See the DIY pressure bleeder in the FAQ,
'79 1.6TD RABBIT
'84 1.5TD RABBIT
'83 Diesel Westy
'86 Audi 5000 Turbo Quatro Wagon
92 Audi 100
'93 Eurovan
'82 Porsche 930