user 72902

Absolutely.

Ptech1

This. Never mind old vs new fluid intermixing, which completely changes it to an unknown amount of fluid required at each corner to fully flush.

malahhaor

Thanks for the info. Much appreciated.

door2416

I don't put any brake fluid in the motive canister I just use it to pressurize the brake reservoir. It works just as good and there is no clean up necessary. Just keep an eye on the fluid level in the reservoir and don't let it get empty.

mike9186

in my 964 I never touched the clutch or brake pedals when bleeding the system. I was told the Motive bleeder did all the work of pushing the old fluid out and the new fluid in. The Porsche shop manual description is confusing because it reads like the clutch needs to be actuated slowly 10-15 times? Wouldn't that dump a ton of fluid out of the slave bleed nipple.

Can't I just crack the slave bleed nut and let the Motive work its magic?

Devil Boy

I used to do this but constantly refilling the reservoir and re-pressurizing the Motive canister was tedious. I just put fluid in the Motive and pump it up once. It really doesn't make a mess and the fluid level actually stays the same in the reservoir throughout the entire process since your pressurizing both the fluid and the ullage portion at the top. At least it did for me. I'm sure there is science and magic involved.

Lvt19672

Seems like there is no definitive answer on this subject if we have to pump the clutch 10-15 times while the bleeder is open.