YearToAvoid

2010 Mercury Mariner Fuel System Problems

NHTSA has 63 owner complaints about fuel system problems in the 2010 Mercury Mariner, 23% of all 270 complaints for this model year. That is the highest fuel system complaint count among 7 Mariner model years. Median mileage at failure: 47,881 miles.

Fuel System complaints
63
23% of 270
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
47,881 mi
Related recalls
1

When 2010 Mercury Mariner fuel system complaints were filed

First complaint Mar 2, 2013, latest May 11, 2025.

2010 Mercury Mariner fuel system complaints: complaints filed per month11Mar 2013Sep 2013Jul 2014Mar 2016Jan 2018Oct 2018Jun 2023
63 complaints filed with NHTSA from Mar 2013 to May 2025; peak Jul 2013 (11).

Fuel System recalls for the 2010 Mercury Mariner

  1. NHTSA 16V777000Oct 26, 2016Fuel System329,265 vehicles

    Fuel system, gasoline:delivery:fuel pump

    Ford Motor Company (Ford) is recalling certain model year 2010-2012 Ford Escape vehicles manufactured February 26, 2009, to April 29, 2012, and 2010-2011 Mercury Mariner vehicles manufactured February 25, 2009, to December 12, 2010. On vehicles with a 3.0L engine, the Fuel Delivery Module (FDM) may crack, causing a fuel leak.

    Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.

    Remedy: Ford will notify owners, and dealers will replace the FDM flange with one that has a redesigned fuel supply port, free of charge. Remedy parts are currently unavailable. Interim notices were mailed to owners on December 13, 2016. Owners will receive a second notice when remedy parts become available. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S41.

Fuel System complaints by Mariner model year

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

  1. 20057 (10%)
  2. 20066 (10%)
  3. 20070 (0%)
  4. 200811 (2%)
  5. 200930 (10%)
  6. 201063 (23%)
  7. 201128 (32%)

Frequently asked questions

Does the 2010 Mercury Mariner have fuel system problems?
NHTSA has 63 owner complaints about the fuel system in the 2010 Mercury Mariner, 23% of all complaints for this model year. Median mileage at failure is 47,881 miles.
Which Mercury Mariner year has the most fuel system complaints?
The 2010 Mercury Mariner has the most fuel system complaints (63), compared with 63 for the 2010.
Is there a fuel system recall for the 2010 Mercury Mariner?
Yes — 1 NHTSA recall campaign for the 2010 Mercury Mariner concerns the fuel system: 16V777000.

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.