YearToAvoid

2011 Mercury Mariner Engine Problems

NHTSA has 28 owner complaints about engine problems in the 2011 Mercury Mariner, 32% of all 87 complaints for this model year. That is #4 highest engine complaint count among 7 Mariner model years. These complaints report 1 crash and 1 injury. Median mileage at failure: 43,000 miles.

Engine complaints
28
32% of 87
Crashes reported
1
Fires reported
0
Injuries reported
1
Median mileage
43,000 mi
Related recalls
0

When 2011 Mercury Mariner engine complaints were filed

First complaint Feb 25, 2013, latest Dec 15, 2014.

2011 Mercury Mariner engine complaints: complaints filed per month6Feb 2013Jun 2013Aug 2013Dec 2013May 2014Jul 2014Dec 2014
28 complaints filed with NHTSA from Feb 2013 to Dec 2014; peak Jul 2013 (6).

Engine recalls for the 2011 Mercury Mariner

No safety recalls on record for this model year.

Engine complaints by Mariner model year

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

  1. 200524 (36%)
  2. 200621 (33%)
  3. 200712 (36%)
  4. 200846 (10%)
  5. 200984 (27%)
  6. 2010104 (39%)
  7. 201128 (32%)

Frequently asked questions

Does the 2011 Mercury Mariner have engine problems?
NHTSA has 28 owner complaints about the engine in the 2011 Mercury Mariner, 32% of all complaints for this model year, including 1 that report a crash. Median mileage at failure is 43,000 miles.
Which Mercury Mariner year has the most engine complaints?
The 2010 Mercury Mariner has the most engine complaints (104), compared with 28 for the 2011.
Is there a engine recall for the 2011 Mercury Mariner?
No NHTSA recall campaign for the 2011 Mercury Mariner 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.