One problem related to defogger has been reported for the 2000 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Mercury Mountaineer based on all problems reported for the 2000 Mountaineer.
When climate control is set to heat it begins to get warm then starts blowing cold air, dealer has tried to repair but the problem still exist. Nlm.