Brake hoses provide the connection from the master cylinder to the calipers. Brake hoses must be strong, intact and leak free. A leaky brake hose will not allow proper pressure to transfer from the master cylinder to the calipers. This is very dangerous for you as the driver and everyone else on the road around you.
Though brake hoses should last about six years, they’re under a lot of stress. It’s important to inspect them on a regular basis, so you can catch potential problems before the entire system fails. If there’s a leak or crack in a brake hose, the loss of fluid will cause a drop in pressure (in other words, the brakes won’t be there when you need them). Another danger of leaky hoses is that brake fluid is corrosive, so drips can cause damage elsewhere on your car.