Mercury

Mariner Hev (2011)

2011 · Compact Sedan · 2 engines
Best Engine ⚠️ Caution (3.4)
84 NHTSA Complaints
3 Recalls
0 Fire Reports
2 Crash Reports
📋 Inspection checklist

NHTSA Safety Ratings About NHTSA ratings

Overall 3/5
Frontal Crash
3/5
Side Crash
3/5
Rollover
3/5 (20.4% risk)
ESC: Standard FCW: No LDW: No
Overall 3/5
Frontal Crash
3/5
Side Crash
3/5
Rollover
3/5 (23.7% risk)
ESC: Standard FCW: No LDW: No

Engine Reliability Ratings

Mercury Mariner Hev Unidentified Engine

⚠️ Caution (3.4)
14 complaints 14.0 per year
View details

Complaint Breakdown

transmission
5
other
4
engine
3
steering
2
fuel system
2

Known Issues

Transmission Issues (5 complaints)
Engine Issues (3 complaints)
Steering Issues (2 complaints)
Show 1 additional engine variant with limited data
These engines appear in fewer than 10 owner complaints and aren't included in the main ratings above. Low counts can mean a genuinely clean record, but they can also reflect VIN-decode anomalies in NHTSA data. Treat as informational, not as a confident rating.

Vehicle-Level Issues

These issues affect the Mercury Mariner Hev regardless of engine variant.

Fuel System Issues (25 complaints)
fuel_system serious
Transmission Issues (24 complaints)
transmission critical
Steering Issues (19 complaints)
steering cosmetic
Engine Issues (14 complaints)
engine cosmetic

Recalls (3)

16V777000Oct 25, 2016serious
Fuel System

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.

15E045000Mar 5, 2015serious
Suspension

The Timken Company (Timken) is recalling certain aftermarket front wheel bearings, part number 510072, sold from January 22, 2015, to May 21, 2015, to be used as service parts on 2001-2012 Ford Escape, 2001-2011 Mazda Tribute, and 2005-2011 Mercury Mariner vehicles. The affected wheel bearings have incorrect dimensions of a 42mm bore, 76mm outer dimension, and 39mm width, instead of a 42mm bore, 78mm outer dimension and a 45mm width.

14V284000May 28, 2014serious
Steering

Ford Motor Company (Ford) is recalling certain model year 2008-2011 Ford Escape and Mercury Mariner vehicles manufactured August 18, 2006, through September 11, 2010. The affected vehicles have a steering torque sensor that may not be able to properly detect driver steering input. As a result, the system could remove the Electric Power Steering (EPS) assist.

Alternatives in Compact Sedan

Frequently Asked Questions

What are the most common 2011-2011 Mercury Mariner Hev problems?

The 2011-2011 Mercury Mariner Hev has accumulated 84 NHTSA complaints. The most frequently reported problem areas are Fuel System, Transmission, Steering. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.

Which Mercury Mariner Hev engine is most reliable?

The 2011-2011 Mercury Mariner Hev was offered with 3 engine options. Based on NHTSA complaint data, the 3.0L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.

Is the 2011-2011 Mercury Mariner Hev a good used car?

The 2011-2011 Mercury Mariner Hev can be a sound used car depending on trim, mileage, and maintenance history. With 84 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.

How many NHTSA complaints does the 2011-2011 Mercury Mariner Hev have?

The 2011-2011 Mercury Mariner Hev has 84 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.

What recalls affect the 2011-2011 Mercury Mariner Hev?

There are 3 NHTSA recalls affecting some 2011-2011 Mercury Mariner Hev vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.

What should I check before buying a used Mercury Mariner Hev?

Before buying a used Mercury Mariner Hev, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Fuel System, Transmission, Steering, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.

What are the NHTSA crash test ratings for the Mariner Hev?

The 2011 Mercury Mariner Hev received an overall 3-star safety rating from NHTSA. Frontal crash: 3 stars. Side crash: 3 stars. Rollover: 3 stars (20.4% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: No. Lane Departure Warning: No. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.

Data from NHTSA federal complaints database. 84 complaints analyzed. Data confidence: moderate. Last updated: 2026-05-23.

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