One problem related to brake grinding noise has been reported for the 2005 Mercury Montego. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Montego based on all problems reported for the 2005 Montego.
Rear brakes are excessively worn. The first incident of grinding noise happened at 100 miles. At 196 miles the dealer replaced the rotors and pads. Squeaking, grinding noises and excessive rear brake dust continued. Currently at 18,846 miles the grinding is extremely loud. The dealer claims I need new brake pads and one right rear rotor. After researching this incident there have been numerous reports of the same exact issue. This is abnormal brake wear and the owners of Ford five hundred and Mercury Montego should be aware of this issue. Potential buyers beware! Ford and the dealer will do nothing about this as they claim the brake system is covered for 12 months. This is clearly defective!!!!.