How much brake fluid do I need for a full flush?

[Eyerate]

Is 1 liter enough?

[doublezero30]

1-2 liters. you really can start to SEARCH before posting your threads. i just saw two in 10 seconds that have been covered many times before.

oh and not to mention theyre both about brakes, so why not just make 1 post about both things if youre going to post at all?

to answer your other thread, you need a tool you can rent at autozone to turn the rear caliper pistons back into the caliper.

[Eyerate]

1-2 liters. you really can start to SEARCH before posting your threads. i just saw two in 10 seconds that have been covered many times before.

oh and not to mention theyre both about brakes, so why not just make 1 post about both things if youre going to post at all?

to answer your other thread, you need a tool you can rent at autozone to turn the rear caliper pistons back into the caliper.

thanks, champ

[jersey audi]

hey i just got a brake llight flashing, i guess that means i need more brake fluid, should i flush it or just add more fluid, and what fluid should i use just audi oem, I have dot 5 race fluid, i would need to flush to add that right?

[edge19lw]

yes the flashing brake light means you need to add some fluid. You should change the fluid if it is old with some Pentosin CHF, and yea you should flush it for sure if your going to put Dot5 in. Any reason you need Dot 5 race in the car now though?

[Burtonrider1002]

Because he already has it?

Otherwise i cant imagine why he would

[edge19lw]

Because he already has it?

Otherwise i cant imagine why he would

I'm just saying why he would want to put Dot5 in....you usually have to change Dot5 more often

[davidlizard]

did mine with 3x 500ml

[jersey audi]

yea cause i have it around, my dad has a e30 m3 that he tracks and has lots of dot5 around the garage, ill just stay oem though.

[doublezero30]

^i dont believe DOT4 nad DOT5 are compatable. DOT4 and DOT3 are, though i would still stick with DOT4 if you can get your hands on it.

[VMRWheels]

^i dont believe DOT4 nad DOT5 are compatable. DOT4 and DOT3 are, though i would still stick with DOT4 if you can get your hands on it.

+1, dot 5 is silicone based, if you mix it with dot 3/4 which is glycol based, it will damage the seals and cause brake failure. Dot 5 is also incompatible with ABS systems.

[3ohAvant]

1.5-2 liters is what i've used.

dot 5 race fluid, DO NOT mix.

And if that DOT 5 is close to a year old, flush it, don't add. Its probably absorbed lots of water by now.

I'm also assuming that you really mean DOT 5.1???

Pentosin CHF is not for your brakes, its for the power steering. and if some of you are saying but its a good hydraulic fluid, well, then i say the temps are not good enough. it will boil over at just under 300F. not nearly good enough for brakes.

[charkey]

+1, dot 5 is silicone based, if you mix it with dot 3/4 which is glycol based, it will damage the seals and cause brake failure. Dot 5 is also incompatible with ABS systems.

I read on a different thread that lots of people seem to use motul dot 5.1. I looked it up and it says that it is non-silicone based (its glycol based, also says it is good for abs). Is it ok to use this fluid? It will mix ok, right? or should i just stick with OEM fluid?

[VMRWheels]

dot 5.1 is fine to use, you won't have any issues with that

[charkey]

dot 5.1 is fine to use, you won't have any issues with that

That's good to hear, since I already ordered it, haha. Thanks

[B6JoeS4]

only took me 1.5L