Audi A4 2003: How to bleed breaks

Genuineguy

Hi,

I have a Audi A4 2003, Had it two years now, and i would like to change the break fluid on it, Would anyone be able to give me the correct procedure to do this.

I.e is this procedure correct below:

1. Drain old fluid from Brake fluid Reservoir

2. Top up with new break fluid,

3. Go to furthest wheel, and release breather screw and while someone in the car pressing the peddle.

4. Do this for all four wheels, And keep reservoir topped up, while bleeding

Is this correct ?

Owen

Article on Wikihow below, but there are literally dozens of guides online with photos if you Google :
http://www.wikihow.com/Bleed-Brakes

And it's Brakes, not breaks.

Neilw

You need to be careful with these, when pumping the pedal don't press it all the way to the floor, you can damage/flip the seal in the master cylinder by pressing the pedal all the way. Put a small block of timber on the floor so the pedal does not travel all the way.

I think there are also two bleed nipples on the master cylinder too.

crosstownk

Neilw wrote: »

You need to be careful with these, when pumping the pedal don't press it all the way to the floor, you can damage/flip the seal in the master cylinder by pressing the pedal all the way. Put a small block of timber on the floor so the pedal does not travel all the way.

I think there are also two bleed nipples on the master cylinder too.

Good advice.

Audi recommend that the system is bled by pressurising the system with an appropriate pressure bleeder.

Genuineguy

Would it be better to get a garage to bleed the brakes, i dont have any means of pressurising the System, or by bleeding the system as i said above, would that be sufficient enough.

Thanks guys for the advice on putting the block of timber under the pedal

Genuineguy

Guys,

Also i see from the first response to this thread in the procedure

"For ABS type brakes, you may need to use a scan tool during the bleeding process to cycle the pump and valves"

Will i need this scan tool for this guys,