One problem related to brake hoses, lines/piping, and fittings has been reported for the 1997 Mercury Mystique. The most recently reported issues are listed below.
While approaching stop sign, the consumer applied the brakes and the pedal went all the way to the floor. Dealership is aware of problem. The consumer stated that the reason that the pedal went to the floor is because the hose that carries the brake fluid to the brakes was severed by fault of the design of the manufacturer. The hose rests against the rear shocks and over time was dug into by the metal shocks and eventually cut the hose. Causing complete brake failure.