Mercury Villager 1993-2000
Nissan Quest 1993-2000
Observe the fluid level indicators on the master cylinder; the fluid level should be between the MIN and MAX lines.
Before removing the master cylinder reservoir cap, make sure the vehicle is resting on level ground and clean all dirt away from the top of the master cylinder. Unscrew the cap and fill the master cylinder until the level is between the MIN and MAX lines with the appropriate brake fluid.
If the level of the brake fluid is less than half the volume of the reservoir, it is advised that you check the brake system for leaks. Leaks in a hydraulic brake system most commonly occur at the wheel cylinder and brake line junction points.