Brake fluid absorbs water
it can absorb certain amounts of water that may get in your breaking system. No, it absorbs water.
No, the fluid cannot absorb water but you can get water in your brake system and that would be bad. --Most brake fluids used today are glycol-ether based. Glycol-ether brake fluids are hygroscopic (water loving), which means they absorb moisture from the atmosphere under normal humidity levels. Racing brake fluid may be synthetic and not have this problem, but in the everyday world, brake fluid does absorb water.
Most UK vehicles, the recommendation period is two years for mineral brake fluid. Silicon fluid should not need changing as it does not absorb water.
If your brake fluid is hygroscopic then it means that is will absorb water/moisture from the air and it can effect your boiling point and your brakes may fail at high speeds.
It means that the brake fluid absorbs water. Most all brake fluids you use in you're vehicles, automotive or otherwise will absorb water from the atmosphere right through the brake systems metal and rubber parts. You should change or at the very least, inspect your brake fluids yearly. As water is absorbed into the system, the boiling point lowers and the fluid can do very nasty things to your brake lines, abs systems and master cylinder parts.
I would say any fluid could act as a coolant. Brake fluid DOT 3, 4 and 5.1 is a polyethylene glycol based fluid. DOT 5 is a silicone based fluid. DOT 3, 4 and 5.1 will absorb water, reduce its boiling point and degrade its performance.
Break fluid has the ability to absorb certain amounts of water. You do need to change it after a year or two due to electrolysis. It will eat away the metals in your breaking system and cause further damage
No. Water is insoluble in hydraulic oil.
Yes.
Generally contaminated brake fluid is very dark and grimy looking. It also may cause a spongy brake petal, but not always. If you have reason to believe that your brake fluid is contaminated, you should definitely have it changed. If there is more than 3% water in your brake fluid, you run the risk of super heating the water causing one or more of your brake lines to explode, which apart from being incredibly dangerous is also tremendously expensive to repair. Brake fluid is very hygroscopic, and when exposed to air, it readily absorbs water.
Brake fluid can corrode your water pump. If you didn't start the engine after installing the brake fluid, then pump the reservoir empty, flush it with water and refill it with proper coolant. If you DID start it, you need to flush the whole cooling system.
The brake fluid must be flushed out as soon as possible If you have to add water keep going its OK Drain and change the coolant as soon as possible.