Brake Fluid Change - How much to drain ...

[teeerex]

Hi,

I'm just following the DIY for changing my brake fluid - it advises removing as much old fluid as possible from the resevoir. I assume this is to avoid wastage in mixing old and new fluid ? I'm using an empty pressure bleeder to just remove the old fluid via a normal bleed nipple at the moment - I'm down to the 'min' mark but have noticed a black large diameter plastic pipe coming from the right of the resevior. Should I go below this for less wastage or will this introduce air into the clutch via this pipe ?

Many Thanks,

Richard.

[1999Porsche911]

Hi,

I'm just following the DIY for changing my brake fluid - it advises removing as much old fluid as possible from the resevoir. I assume this is to avoid wastage in mixing old and new fluid ? I'm using an empty pressure bleeder to just remove the old fluid via a normal bleed nipple at the moment - I'm down to the 'min' mark but have noticed a black large diameter plastic pipe coming from the right of the resevior. Should I go below this for less wastage or will this introduce air into the clutch via this pipe ?

Many Thanks,

Richard.

It doesn't matter. Just fill up your pressure bleeder with fuild and go for it. Don't forget the clutch bleed.

[djantlive]

don't let the resevoir go below min. otherwise, you'll suck in air into the systme. each wheel should lower the fluid level by about 100-200ml. By the second wheel bleed, the resevoir needs to be filled.

[Q-Ship986]

....Don't forget the clutch bleed.

I looked at the DIY.... Is the bleeder valve like the ones on the caliper? i.e. can you connect tubing to it?

Also, I have a G86.20 6-speed...same bleeder as shown in the DIY?

I'm planning on pulling the car out of storage and doing this first thing. Thanks for any help.

--Brian

[Loren]

Also, I have a G86.20 6-speed...same bleeder as shown in the DIY?

Yes, same bleeder It is near the top of on the transmission.