2007 Mercury Mariner Hybrid Reliability: 31 Complaints, 3 Recalls

31 NHTSA Complaints

3 Recalls

0 Fire Reports

1 Crash Reports

Reliability Score

4.2 / 10

Reliability score

More owner complaints than similar compact sedans

A score of 7.0 means as many complaints as similar vehicles. Based on complaints owners filed with NHTSA about the engine, transmission or drivetrain.

Counted together with the Mercury Mariner. The maker reports the two models' production to NHTSA as one figure.

Owners filed 571 powertrain complaints. A typical compact sedan fleet of this size and age would have drawn about 215.

Scores this low have often eased: the three years after looked about 1.7 points better in the typical case.

Most of the complaints came before 2023.

Breakdown

Complaints overall571 complaints against about 215 for similar vehicles

4.2

Last three years

n/aNot enough data

Engine, transmission or drive unit failed or replaced54 complaints against about 34 for similar vehicles

5.8

Oil consumption, fuel in the oil or overheating15 complaints against about 11 for similar vehicles

6.3

Each line scores one view of the same complaints the same way, so the lines overlap. The mark on each bar is 7.0, as many complaints as similar vehicles. A line shows a number once similar vehicles would draw at least 5 of its complaints (20 for the last three years).

By model year

20056.4
20066.0
20075.8
20084.2
20093.4
20103.0
20113.1

Similar vehicles are others in the same class, compared at the same age and in the same years. The score counts complaints owners filed with NHTSA, per vehicle built, which is different from the share of vehicles that fail. How the score is worked out

By engine

3.0L 6-cyl 4.8/10

No clear difference from this generation's other engines. (278 powertrain complaints, about 144,000 built)

2.5L 4-cyl 4.3/10

No clear difference from this generation's other engines. (70 powertrain complaints, about 26,000 built)

2.3L 4-cyl 5.7/10

No clear difference from this generation's other engines. (31 powertrain complaints, about 20,000 built)

hybrid (engine not listed) 5.9/10

No clear difference from this generation's other engines. (19 powertrain complaints, about 12,000 built)

A complaint counts toward an engine only when its VIN names the engine. These are powertrain complaints only, so they are fewer than the engine-code counts further down, which take complaints of every kind. Each score is that engine on its own against similar vehicles, worked out the same way as the score above.

On the record

No serious powertrain recall covering 5% or more of this generation and no escalated investigation in NHTSA's files. Warranty extensions and settlements have not been researched.

Complaints by Engine Code

Every complaint of any kind (brakes, airbags, electrical and the rest) whose VIN names the engine, across all model years. The score above counts only engine, transmission and drivetrain complaints, so its figures for the same engine are smaller. Fire, injury and death figures count complaints that report one.

2.3-I4-Hybrid

2.3L 4-cyl / 133 hp

27 complaints 27.0 per year Gasoline

View details

Complaint Breakdown

brakes

engine

electrical

transmission

cooling

Show 1 additional engine variant with limited data

These engines appear in fewer than 10 owner complaints. A low count can mean a clean record, and it can also be a VIN-decode anomaly in NHTSA's data.

Mercury Mariner Hybrid Unidentified Engine

4 complaints 4.0 per year

View details

Complaint Breakdown

engine

cooling

electrical

Battery & Propulsion Reliability

Hybrid (HEV)

Battery & propulsion complaint analysis for the 2007 Mercury Mariner Hybrid

2 battery-related complaints 1 battery-related recall

Too few battery-related complaints to set against other hybrids yet.

What kind of battery complaint?

What the 2 battery-related complaints describe. One complaint can name more than one of these, so the shares add up to more than 100%. They describe what owners complained about, not how often the vehicle fails.

Battery & propulsion recalls (1)

14V526000 HYBRID PROPULSION SYSTEM

Ford Motor Company (Ford) is recalling certain model year 2005-2008 Ford Escape hybrid electric vehicles manufactured October 13, 2003, to June 20, 2008, and 2006-2008 Mercury Mariner hybrid electric vehicles manufactured June 10, 2005, to June 20, 2008. The coolant pump for the hybrid system may fail resulting in the hybrid electronics overheating.

Consequence: If the hybrid electronics system overheats, it may shut down the powertrain, resulting in a stall-like condition, increasing the risk of a crash.

Sample complaint excerpts

Electric Propulsion

[2007] I WAS DRIVING MY '07 MARINER HYBRID ON THE NJ TURNPIKE AT FREEWAY SPEEDS WHEN THE RED TRIANGLE & MESSAGE "STOP SAFELY NOW" APPEARED ON THE DASH. THE PROPULSION SYSTEM STOPPED AND I WAS ABLE TO NAVIGATE OFF TO THE SHOULDER AND BRING THE VEHICLE TO A SAFE STOP. HAVING AN IMMEDIATE LOSS OF POWER WHILE TRAVELING ON THE TURNPIKE WAS VERY SCARY AND I FELT UNSAFE KNOWING THAT I DIDN'T HAVE ANY OPTIONS BU
[2007] I HAVE A 2007 MERCURY MARINER HYBRID WITH 118,000 MILES. YESTERDAY, THE EXCLAMATION MARK WARNING LIGHT CAME ON 12 TIMES IN 8 MILES. I TURNED AROUND AND IT CAME ON AN ADDITIONAL 10 TIMES ON THE WAY HOME. THERE IS FIRST A LOSS OF POWER, THE LIGHT COMES ON. I SWERVE ONTO THE SHOULDER BEFORE I CAN TURN OFF THE ENGINE THERE IS A JOLT. I HAVE TAKEN MY CAR TO THE DEALERSHIP BEFORE AND THEY SAID TO "

Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. The rate divides those complaints by the electrified versions built, from the production counts makers report to NHTSA, and it is not adjusted for age. Death and injury figures count complaints that report one, not the number an owner typed in.

Owner Complaints by System

Complaints owners filed with NHTSA about the Mercury Mariner Hybrid, counted across every engine. A complaint can name more than one system.

Engine: 10 owner complaints

Brakes: 8 owner complaints

Electrical System: 7 owner complaints

Cooling System: 6 owner complaints

Recalls (3)

15V606000Sep 29, 2015serious

Powertrain

Ford Motor Company (Ford) is recalling certain model year 2001-2008 Ford Escape and Mercury Mariner vehicles manufactured March 31, 2001, to September 1, 2009. The affected vehicles are equipped with either a 2.3L or 3.0L engine and have had their CD4E transmission replaced with remanufactured one that was rebuilt between June 11, 2015 through July 15, 2015. These service repair part transmissions have a shift lever bolt that may not be properly tightened. As a result, the shift control lever could disengage from the transmission without warning.

15E045000Jun 3, 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.

14V526000Sep 3, 2014serious

Hybrid Propulsion System

All Generations

20062006 20072007 20082008 20092009 20102010

Alternatives in Compact Sedan

2 engines / 1,029 complaints

3 engines / 16 complaints

4 engines / 62 complaints

Lexus

2014-2025

9.5/10

5 engines / 177 complaints

1 engine / 285 complaints

2 engines / 132 complaints

Frequently Asked Questions

What are the most common 2007-2007 Mercury Mariner Hybrid complaints?

Owners have filed 31 complaints with NHTSA about the 2007-2007 Mercury Mariner Hybrid. The systems they name most often are the engine, the brakes and the electrical system.

Is the 2007-2007 Mercury Mariner Hybrid a good used car?

That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 31 complaints with NHTSA about the 2007-2007 Mercury Mariner Hybrid. Check which systems they name most often and whether a recall is still open on that car.

How many NHTSA complaints does the 2007-2007 Mercury Mariner Hybrid have?

NHTSA has 31 owner complaints on file for the 2007-2007 Mercury Mariner Hybrid as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.

What recalls affect the 2007-2007 Mercury Mariner Hybrid?

NHTSA lists 3 recalls covering some 2007-2007 Mercury Mariner Hybrid vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.

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

Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the engine, the brakes and the electrical system, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.

Does the Mariner Hybrid have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2007 Mercury Mariner Hybrid. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 31 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-18.