2007 Mercury Mountaineer: Reliability Data

Source: NHTSA — 119 complaints
119
Total Complaints
78,000mi
Median Mileage
SEATS
Top Issue
6
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

44,618 25th Percentile
78,000 Median Mileage
116,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SEATS
24
POWER TRAIN
21
ELECTRICAL SYSTEM
16
VEHICLE SPEED CONTROL
7
UNKNOWN OR OTHER
6
ENGINE
5
POWER TRAIN:AUTOMATIC TRANSMISSION
4
STEERING
4
WHEELS
3
SEAT BELTS
3

Severity Assessment

6
Crashes
0
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"2007 MERCURY MOUNTAINEER CUSTOMER STATES THAT THE CAR SUDDENLY SURGED AND WOULD NOT STOP UNTIL SHE PUT THE CAR IN PARK**CC *JB"
"I WAS WASHING THE SUV IN MAY 2007, AND AFTER WASHING THE WINDSHIELD OFF I WENT TO THE BACK OF THE CAR TO WASH OFF THE BACK WHEN I CAME AROUND TO THE FRONT AND THE FRONT WINDSHIELD WAS CRACKED. THERE WAS NO EVIDENCE OF A ROCK, OR DENT HOLE, THE CAR WAS IN THE DRIVEWAY. I WAS STANDING THERE AND W..."
"TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE TRANSMISSION MADE NOISES WHEN DOWNSHIFTING AT 15 MPH OR WHEN STARTING THE VEHICLE. THE DEALER REPROGRAMMED THE VEHICLE. THE CONTACT TOOK THE VEHICLE HOME, BUT THE FAILURE WORSENED. THE TRANSMISSION CONTINUED TO SLIP. SHE RETURNED TO THE DEALER..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28