One problem related to brakes failed has been reported for the 2006 Mercury Montego. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mercury Montego based on all problems reported for the 2006 Montego.
Recently had to pay a Ford dealer $385 to replace the rear brake assemblies at 27,000 miles on my 2006 Mercury Montego purchased new in July 2006. Front brakes in fine shape. Evidently the designed rear brake assemblies are substandard for this vehicle. The rear brakes had not failed yet but were within a few miles of doing so, according to a Ford service representative.