Mercury Mountaineer owners have reported 2 problems related to brake hoses, lines/piping, and fittings (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mountaineer based on all problems reported for the Mountaineer.
The contact owns a 2003 Mercury Mountaineer. While driving, the transmission failed to shift. While parked, the emergency brakes failed and caused the vehicle to roll away. The contact was able to gain control of the vehicle. In addition, the brake warning indicator illuminated. The vehicle was towed to the dealer where it was diagnosed that the brake lines and hoses needed to be replaced. The vehicle was repaired, but the issue recurred. The manufacturer was made aware of the failure. The failure mileage was 200,000.
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The contact owns a 2003 Mercury Mountaineer. The contact stated that while driving 45 mph, he applied the brakes and the brake pedal depressed to the floor. The vehicle coasted to a stop and was towed to an independent repair shop. The contact was informed that the brake lines ruptured and the vehicle lost all brake fluid. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 79,000.