2011 Mercury Mariner Problems

Notable Issues

Shopping for a used 2011 Mercury Mariner? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Based on 86 real NHTSA owner complaints, with Transmission / Drivetrain the most reported area.

20072 yearsnewer

Before you buy

This 2011 Mercury Mariner has 86 NHTSA complaints β€” top issue: Transmission / Drivetrain.

A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.

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86
Complaints
2
Crashes
β€”
Fires
1
Injuries
β€”
Fatalities
3
Recalls

2011 Mercury Mariner Fuel Economy

βœ“ EPA Official Data

EPA-rated fuel economy across 4 2011 Mercury Mariner trim configurations. The median figure is shown; range reflects all available trims.

20
MPG City
18–21 range
26
MPG Hwy
23–27 range
22
MPG Combined
20–23 range
404
g COβ‚‚/mile
Regular Gasoline
⚠️Costs $3,000 more than avg vehicle over 5 years

Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 4 trims analysed.

2011 Mercury Mariner Safety Ratings

NHTSA 5-Star Program2 variants tested β€” showing 2011 Mercury Mariner 4DR SUV 4x4

Official crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.

Overall

3/5

20.4% rollover risk

Frontal Crash

3/5

Side Crash

3/5

Rollover

3/5

20.4% probability

βœ“Stability Control: Standardβ—‹Forward Collision Warning: Noβ—‹Lane Departure Warning: No

Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.

Quick Answer

Based on NHTSA complaint data, the 2011 Mercury Mariner has 86 owner complaints, 2 crash-related complaints, and 3 recall campaigns on record. The most frequently reported component is Transmission / Drivetrain. NHTSA reliability signal: Notable Issues.

2011 Mercury Mariner β€” key reliability facts
Make
Mercury
Model
Mariner
Model year
2011
NHTSA owner complaints
86
Crash-related complaints
2
Safety recall campaigns
3
Top reported component
Transmission / Drivetrain
Reliability signal
Notable Issues
EPA MPG combined
22
EPA MPG city / highway
20 / 26
Fuel type
Regular Gasoline
NHTSA overall safety rating
3/5 stars
NHTSA frontal crash rating
3/5 stars
NHTSA side crash rating
3/5 stars
NHTSA rollover rating
3/5 stars
Electronic stability control
Standard

Common problems

Most common 2011 Mercury Mariner problems

Top owner-reported complaint areas and where they often appear.

#1
24
complaints

Transmission / Drivetrain

#2
22
complaints

Fuel/Propulsion System

#3
19
complaints

Steering Defects

Complaint patterns center on Transmission / Drivetrain, Fuel/Propulsion System, Steering Defects. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.

Buyer verdict

Should you buy a used 2011 Mercury Mariner?

The 2011 Mercury Mariner shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase.

Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.

Pre-purchase

What to check before buying a used 2011 Mercury Mariner

Inspection Focus

  • Inspect the transmission and drivetrain for any signs of malfunction or unusual behavior.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for transmission, fuel system, and steering components.
  • Have a mechanic inspect the vehicle thoroughly before purchase.

Before You Close the Deal

  • Inspect the transmission and drivetrain for any signs of malfunction or unusual behavior.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for transmission, fuel system, and steering components.
  • Have a mechanic inspect the vehicle thoroughly before purchase.

Check the exact car

Shortlist with model-year data. Decide with the exact VIN.

Before buying a used 2011 Mercury Mariner, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.

AI verdict

What the complaint data suggests

Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology

NHTSA complaints for the 2011 Mercury Mariner are concentrated in the transmission/drivetrain and fuel/propulsion system, with steering defects and unintended acceleration also frequently reported. The data suggests potential issues in these areas, but the low confidence level and limited model year range mean patterns should be interpreted cautiously.

Key Findings
  • Transmission/drivetrain complaints are the most numerous, with 24 reports.
  • Fuel/propulsion system complaints total 22, indicating a possible recurring issue.
  • Steering defects were reported 19 times, and unintended acceleration 15 times.
Top Concerns
  • Transmission / Drivetrain issues appear to be the most common complaint.
  • Fuel/Propulsion System problems are also frequently reported.
  • Steering Defects and Unintended Acceleration are notable concerns.
Data note: NHTSA complaints are consumer-submitted and do not confirm a manufacturing defect. The analysis covers only one model year (2011) with low confidence, limiting generalizability.

Full breakdown

All 2011 Mercury Mariner complaints by category

Every owner-reported complaint category filed with NHTSA for the 2011 Mercury Mariner. Use this as a pre-purchase inspection checklist.

ComponentComplaintsCrashesFiresAvg MileageVolume
Transmission / Drivetrain24β€”β€”β€”
Fuel/Propulsion System22β€”β€”β€”
Steering Defects19β€”β€”β€”
Unintended Acceleration151β€”β€”
Engine Problems14β€”β€”β€”
Fuel System7β€”β€”β€”
Gasoline7β€”β€”β€”
Electrical Faults6β€”β€”β€”
Uncategorized Issues3β€”β€”β€”
Visibility/Wiper3β€”β€”β€”
Visibility3β€”β€”β€”
Equipment2β€”β€”β€”
Airbag Malfunctions22β€”β€”
Suspension Failures1β€”β€”β€”

Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.

In their words

Real owner complaints

Read what owners actually reported to NHTSA for the 2011 Mercury Mariner. Type a keyword (e.g. β€œtransmission”, β€œstalling”, β€œbrakes”) to filter.

Showing 86 most recent complaints

Suspension FailuresMar 27, 2026

My dealer says my subframe needs to be replaced, and controll arm at a cost of 3600 dollars, I don't understand why my subframe needs to be replaced, I've owned cars for as long as 20 yrs and never had that problem. This sounds like a manufacturers problem.

Fuel SystemFeb 11, 2026

The contact owns a 2011 Mercury Mariner. The contact stated that while driving at an undisclosed speed, there was a strong fuel odor inside the vehicle. In addition, the contact stated that the fuel odor was noticeable all the way to the rear seat. The vehicle was taken to the de…

Steering DefectsJan 24, 2025

The contact owns a 2011 Mercury Mariner. The contact stated that while attempting to make a turn from a complete stop, the steering wheel became significantly difficult to turn. The contact was able to turn the vehicle by using physical force. The contact stated that the failure …

Fuel SystemSep 22, 2023

The contact owns a 2011 Mercury Mariner. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and failed to accelerate above 10 MPH. The contact was able to pull to the shoulder of the roadway, after which the vehicle stalled. After restart…

Steering DefectsJul 5, 2023

The contact owns a 2011 Mercury Mariner. The contact stated while entering a fast-food drive-thru, the power steering warning light illuminated, and the steering wheel became difficult to turn. The vehicle was not diagnosed or repaired. A dealer was not contacted. Upon investigat…

Steering DefectsJan 21, 2023

While my wife was driving the vehicle, the power assisted steering failed and produced a "power assist fault code" on the display. The car became too hard for a 74 year old woman to be able to steer. I took the car to the Ford dealer near me who confirmed it was the steering torq…

Steering DefectsJun 24, 2022

The contact owns a 2011 Mercury Mariner. The contact stated that the steering wheel was difficult to turn. The contact stated that the steering wheel was spinning in circles. The vehicle was taken to the local dealer where it was diagnosed that the steering column needed to be re…

Steering DefectsFeb 25, 2022

The contact owns a 2011 Mercury Mariner. The contact stated that while driving at various speeds, the steering wheel became difficult to turn in either direction. After turning off the vehicle and restarting the engine, the vehicle would operate normally. The vehicle was taken to…

Fuel/Propulsion SystemOct 13, 2021

The fuel system is not working properly.I’m scared to drive it anymore.i can’t even put gas in it.

Uncategorized IssuesAug 26, 2021

This car has excessive under body rust under all the wheels wells. I was just told that my car would not pass a State Inspection because the on the front drivers side there is a bracket that holds up the engine is almost totally gone. I have read and over that this vehicle has …

Fuel/Propulsion SystemJul 14, 2021

When I put gas in my car i smell it while driving like it’s leaking and it say on my dash board check fuel inlet

Steering DefectsDec 24, 2020

I'M VERY UPSET AND ON THE VERGE OF TEARS! MY STEERING WHEEL SUDDENLY LOCKED ON ME! I ALMOST WRECKED! THIS HAS HAPPENED A FEW TIMES & I HAVE NO WARNING LIGHT ON MY DASHBOARD

Steering DefectsOct 30, 2020

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED INTERMITTENT POWER STEERING ASSIST FAILURE WITH AN UNKNOWN WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT THA…

Uncategorized IssuesOct 30, 2020

FRONT LOWER SUB FRAME RUST THROUGH IN ARIA UNDER A/C , CLOSE TO POINT OF BRAKING . SEAMS TO BE A COMIN PROBLEM AS MY REPAIR SHOP SAID THEY REPLACE THREE OR FOUR A YEAR . SOME HAVE BROKEN WHILE ON ROAD CAUSING STEERING PROBLEMS .THIS APPARENTLY HAPPENS WHEN THE VEHICLES ARE ABOUT …

Steering DefectsJul 15, 2019

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. WHILE DRIVING 45 MPH, THE STEERING WHEEL BECAME DIFFICULT TO TURN. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 14V284000 (STEERING). THE VEHICLE WAS TAKEN TO K C MOTORSPO…

Transmission / DrivetrainMar 13, 2019

2011 MERCURY MARINER. CONSUMER WRITES IN REGARDS TO THROTTLE BODY WARRANTY EXTENSION. *LD *TR

Steering DefectsNov 16, 2018

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. WHILE DRIVING APPROXIMATELY 60 MPH, THE STEERING ABILITY BECAME VERY DIFFICULT. THE CONTACT DECREASED THE SPEED AND DROVE HOME. THE DEALER WAS NOT NOTIFIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR…

Fuel SystemMay 29, 2018

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V777000 (FUEL SYSTEM, GASOLINE); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE …

Fuel SystemMay 9, 2018

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 16V777000 (FUEL SYSTEM, GASOLINE) EXCEEDED A REASONABLE AMOUNT OF TIME FOR REPAIR. THE CONTACT RECEIVED THE RECALL NOTIFICATION IN JANUARY OF 2017. THE CONTACT SPOKE WITH OURISMAN FORD & L…

Steering DefectsMay 1, 2018

REGARDING: NHTSA RECALL NUMBER 14V-284, FORD RECALL NUMBER 14S05 ELECTRIC POWER STEERING THE RECALL INSTRUCTIONS TO DEALERS CALL FOR A SIGNAL TEST AND EITHER REPROGRAMMING A SENSOR OR REPLACING THE TORQUE SENSOR BASED ON THE RESULTS. IT ALSO CALLS FOR REPLACING THE TORQUE SE…

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Source: NHTSA Complaints Database. Real owner reports for the 2011 Mercury Mariner.

Safety recalls

2011 Mercury Mariner recalls

3 campaigns

NHTSA recall campaigns for the 2011 Mercury Mariner. 3 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.

Safety recall

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

#16V777000FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP26/10/2016
Safety recall

SUSPENSION:FRONT:WHEEL BEARING

#15E045000SUSPENSION:FRONT:WHEEL BEARINGMar 6, 2015
Safety recall

STEERING:ELECTRIC POWER ASSIST SYSTEM

#14V284000STEERING:ELECTRIC POWER ASSIST SYSTEM29/05/2014

Across model years

Compare Mercury Mariner model years

Compare complaint and recall volume across years to see whether 2011 lands in a lower-risk or higher-risk part of the model timeline.

Research more

Keep researching before you buy

Compare brands and categories, then check the exact car's history by VIN.

Questions

2011 Mercury Mariner buying FAQ

Buyer-focused answers based on real NHTSA complaint and recall data for this model year.

Is the 2011 Mercury Mariner reliable?β–Ύ

Notable Issues. NHTSA currently shows 86 owner complaints, 2 crash-related complaints, and 3 recall campaigns for this model year. The 2011 Mercury Mariner shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.

What are the most common problems with the 2011 Mercury Mariner?β–Ύ

#1: Transmission / Drivetrain (24 complaints). #2: Fuel/Propulsion System (22 complaints). #3: Steering Defects (19 complaints)

At what mileage do problems start on the 2011 Mercury Mariner?β–Ύ

Mileage data is not available or insufficient for this model year.

How safe is the 2011 Mercury Mariner?β–Ύ

Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2011 Mercury Mariner, NHTSA complaints include 2 crash-related reports and 0 fire reports out of 86 total complaints. 1 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.

Does the 2011 Mercury Mariner have any recalls?β–Ύ

Yes. 3 NHTSA recall campaigns affect the 2011 Mercury Mariner. A major recall area is FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 3 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.

Should I buy a 2011 Mercury Mariner?β–Ύ

The 2011 Mercury Mariner shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Transmission / Drivetrain during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.

Wider context: See the full Mercury Mariner reliability report with year-by-year comparison.

Owner Reliability Rating

Rate the 2011 Mercury Mariner based on your ownership experience.

Add your rating:

Ratings are based on owner experience and are separate from NHTSA data shown above.

Before you buy

Check the exact vehicle history before you buy

Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.

2011 Mercury Mariner: Is It Reliable? Problems, Recalls & Buyer Verdict | VinSpectorAI