One problem related to catalytic convertor has been reported for the 2005 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Mariner based on all problems reported for the 2005 Mariner.
Car began to make a pop like noise, it has been taken to dealer 3 times and the catalytic converter was replaced the 2nd time in. On the 3rd time they said they could do nothing about the noise as I start the car when cold. Who is liable when my warranty is over?.