YearToAvoid

2007 Mercury Mountaineer Engine Problems

NHTSA has 16 owner complaints about engine problems in the 2007 Mercury Mountaineer, 20% of all 81 complaints for this model year. That is #3 highest engine complaint count among 6 Mountaineer model years. These complaints report 2 crashes and 1 injury. Median mileage at failure: 64,500 miles.

Engine complaints
16
20% of 81
Crashes reported
2
Fires reported
0
Injuries reported
1
Median mileage
64,500 mi
Related recalls
0

When 2007 Mercury Mountaineer engine complaints were filed

First complaint Apr 3, 2007, latest May 4, 2023.

2007 Mercury Mountaineer engine complaints: complaints filed per month2Apr 2007Aug 2010Feb 2011Apr 2012Nov 2012Apr 2014Nov 2017May 2023
16 complaints filed with NHTSA from Apr 2007 to May 2023; peak Jan 2011 (2).

Engine recalls for the 2007 Mercury Mountaineer

No safety recalls on record for this model year.

Engine complaints by Mountaineer model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200522 (27%)
  2. 200659 (50%)
  3. 200716 (20%)
  4. 200811 (11%)
  5. 20091 (17%)
  6. 20106 (46%)

Frequently asked questions

Does the 2007 Mercury Mountaineer have engine problems?
NHTSA has 16 owner complaints about the engine in the 2007 Mercury Mountaineer, 20% of all complaints for this model year, including 2 that report a crash. Median mileage at failure is 64,500 miles.
Which Mercury Mountaineer year has the most engine complaints?
The 2006 Mercury Mountaineer has the most engine complaints (59), compared with 16 for the 2007.
Is there a engine recall for the 2007 Mercury Mountaineer?
No NHTSA recall campaign for the 2007 Mercury Mountaineer is classified under engine. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.