here say FLUID BRAKE DOT 3 DOT4 , but.. i think that could be about ABS.. or what is it?







besides when i lower below car i see it..

it is close that axle





i found thus.



what is it?

 

The hose you are pointing to is an overflow for your carbon cannister.

As for the brake fluid thing Not sure in that area could be ABS, or could be clutch master cylinder but the clutch is usually over by the brake master cyl.

So my answer is ABS

 

abs modulator/reservoir.

 

use dot3, as far as I know. If your car is a civic, it works for both brakes and clutch as the manual instructs.

 

really? work for both? my car is a civic yeah.. thank you..

 

it says on the tag on the tank. use only dot3 or 4. brake fluid

 

but then ? there are two tank for brake fluid? (the other is that goind with brake booster)

 

use dot3 for both. No problems

 

That reservoir under the battery is for the anti-lock brakes. Use the same brake fluid as your main brakes & clutch.

 

thank you brothers