One problem related to wheel bolts has been reported for the 2003 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mercury Mountaineer based on all problems reported for the 2003 Mountaineer.
While traveling about 35mph on the highway and without prior warning right front wheel fell off.
| Wheel problems | |
| Wheel Bolts problems |