What are the most common problems with the 2011 Mercury Mariner?

Critical recalls for the Electric Power Steering (EPS) system and fuel delivery module require verification of completion.

How many recalls does the 2011 Mercury Mariner have?

The 2011 Mercury Mariner currently has 3 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2011 Mercury Mariner a good buy used?

Verdict: Proceed with caution. Critical recalls for the Electric Power Steering (EPS) system and fuel delivery module require verification of completion. The 3.0L V6 engine provides adequate power, but fuel economy is average for the segment. NHTSA ratings show a consistent 3-star score across frontal, side, and rollover crash tests. Despite no reported complaints, the high TSB count suggests potential for common, albeit non-recallable, issues. All-wheel drive offers enhanced traction but may add complexity to long-term maintenance. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2011 Mercury Mariner?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2011 Mercury Mariner.

2011 Mercury Mariner Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jun 12, 2026Ryan Davis2 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

Critical recalls for the Electric Power Steering (EPS) system and fuel delivery module require verification of completion.
The 3.0L V6 engine provides adequate power, but fuel economy is average for the segment.
NHTSA ratings show a consistent 3-star score across frontal, side, and rollover crash tests.
Despite no reported complaints, the high TSB count suggests potential for common, albeit non-recallable, issues.

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Overview

2011 Mercury Mariner

The 2011 Mercury Mariner, a compact SUV, offers a practical if unremarkable package for used car shoppers. Its all-wheel-drive capability and decent fuel economy for its class make it a plausible choice for varied conditions. However, a history of significant recalls, especially concerning steering and fuel leaks, alongside a substantial number of Technical Service Bulletins (TSBs), warrants a cautious approach. Buyers should prioritize vehicles with documented recall completion and a solid maintenance history.

Critical Failure Risk

A faulty torque sensor or module in the electric power steering system can lead to a loss of steering assist. This issue was addressed by NHTSA recall 14V284000, but residual risk remains if repairs were incomplete or components fail prematurely.

Early detection can help you avoid a $800-$1,500 repair.

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns3

Service Bulletins25

Campaign counts apply to this model year, not your VIN's repair status. Check your VIN with NHTSA.

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Buyers seeking an affordable all-wheel-drive SUV for general use.

+2 more buyer-fit notes in the full report

Avoid if

Drivers who demand top-tier reliability and minimal risk of unexpected mechanical failures.

+2 more buyer-fit warnings in the full report

2011 Mercury Mariner Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Gasoline or E85
Transmission: Automatic 6-spd
Drivetrain: All-Wheel Drive
Body Style: Suv
EPA Combined MPG: 20

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Most Common Issues

1. Electric Power Steering (EPS) Failure

Most reported

Usage data observed

2. Fuel Leak from Fuel Delivery Module (FDM)

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes

Est. shop cost: $80 - $150

5,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (4 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

3 recall campaign details & remedy notes

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FAQ

Is the 2011 Mercury Mariner reliable?

The CarFocal Reliability Score for the 2011 Mercury Mariner is 8.2/10. Reliability score is 8.2/10. NHTSA recalls: 3. Owner complaints: 0.

How practical is the 2011 Mercury Mariner for daily use?

Practicality score is 5.0/10. The score is mainly limited by high fuel consumption. EPA combined economy is 20 MPG.

What is the overall score for the 2011 Mercury Mariner?

The CarFocal Overall Score for the 2011 Mercury Mariner is 6.1/10. Overall score is 6.1/10 (Mixed). Confidence 85%. Maintenance 8.0/10. Practicality 5.0/10.

What does it cost to own and maintain a 2011 Mercury Mariner?

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes at 5,000 miles. Estimated first-year maintenance: $400 - $700. Repair prediction highlight: Electric Power Steering System (typical at 75,000 miles, estimated cost Min: $800 • Max: $1,500).

What engine is in the 2011 Mercury Mariner?

Engine specs list 6 • 3.0.

What transmission does the 2011 Mercury Mariner use?

According to CarFocal's specs for the 2011 Mercury Mariner, transmission is Automatic 6-spd. The paired drivetrain is All-Wheel Drive.

Does the 2011 Mariner require Gasoline or E85 gas?

Manufacturer fuel recommendation: Gasoline or E85.

What is the combined EPA MPG for the 2011 Mercury Mariner?

EPA combined estimate is 20 MPG.

What driver assistance and safety features are available on the 2011 Mercury Mariner?

1 standard driver assistance features. Key features include Tire Pressure Monitoring System.

What body style is the 2011 Mercury Mariner?

According to CarFocal's specs for the 2011 Mercury Mariner, body style is suv.

What drivetrain does the 2011 Mercury Mariner use?

According to CarFocal's specs for the 2011 Mercury Mariner, drivetrain is All-Wheel Drive. Transmission is Automatic 6-spd.

What are the NHTSA safety ratings for the 2011 Mercury Mariner?

NHTSA ratings: Overall 3/5 • Frontal 3/5 • Side 3/5 • Rollover 3/5.

Are there open safety recalls on the 2011 Mercury Mariner?

This model year has 3 official safety campaigns listed.