YearToAvoid

2007 Mercury Mariner Reliability Data: Problems & Recalls

Good The 2007 Mercury Mariner has a complaint index of 0, the lowest among the seven model years with data, and ranks 7th worst (best) overall. It carries a Good verdict, though that rating is capped due to less complete records for 2005-2009.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
0/100
#7 of 7 Mariner years
Verdict
Good
vs. other years of this model
Complaints
33
unique NHTSA reports
Recalls
2
distinct NHTSA campaigns
Crashes
1
reported in complaints
Fires
0
Injuries
1
Top issue
Engine
Best nearby year
2006
rated Good
NHTSA overall rating
Not rated
EPA combined MPG
20
18 city / 23 hwy
Injuries / deaths
1 / 0

Top 2007 Mercury Mariner problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Engine12 (36%)
  2. Transmission & Powertrain11 (33%)
  3. Electrical System7 (21%)
  4. Suspension, Wheels & Tires3 (9%)
  5. Airbags2 (6%)
  6. Brakes1 (3%)
  7. Other1 (3%)
  8. Seat Belts1 (3%)
  9. Steering1 (3%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Gas pedal vibrates frequently while driving, a problem the dealer called common for this model.
  • Automatic transmission stops shifting into gear, sometimes requiring replacement of the oil cooler, valve, gaskets, and pistons.
  • Driver-side airbag failed to deploy during a rear-end crash at highway speed.
  • Passenger airbag warning light intermittently states "pass airbag off" even with a seated adult passenger.
  • High-voltage wiring harness under the passenger cabin was damaged, causing a no-crank condition on the hybrid model.
  • Lower control arm bushings and tire valve stems showed premature wear and cracking well before expected.
2007 Mercury Mariner complaints: complaints filed per month3Jul 2006Jun 2009Jan 2012Feb 2013Aug 2013Mar 2015May 2019Nov 2025
33 complaints filed with NHTSA from Jul 2006 to Nov 2025; peak Apr 2014 (3).

2007 Mercury Mariner recalls

2 NHTSA recall campaigns list this model year.

  1. NHTSA 15V606000Sep 29, 2015Transmission & Powertrain57 vehicles

    Power train:automatic transmission:lever and linkage:floor shift

    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.

    Risk: If the shift lever disengages from the transmission, a driver may be unable to shift gear positions and the indicated shift position may not represent the gear position the vehicle is in. Should a disengagement occur while the vehicle is being driven, when the driver goes to stop and park the vehicle, the gear selection indicator may show that the transmission is in the "PARK" position, but the vehicle transmission may not actually be in the "PARK" gear position. If the vehicle is not in the "PARK" position there is a risk the vehicle will roll away as the driver and other occupants exit the vehicle or anytime thereafter. A vehicle rollaway increases the risk of injury to exiting occupants and bystanders.

    Remedy: Ford will notify owners, and dealers will inspect the transmissions and either tighten the manual shift lever bolt or replace the manual shift lever assembly. These repairs will be performed free of charge. The recall began on October 23, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S28.

  2. NHTSA 14V526000Sep 3, 2014Fuel System70,209 vehicles

    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.

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

    Remedy: Ford will notify owners, and dealers will inspect and replace the original Motor Electronics Coolant (MEC) Pump with an improved brushless pump, free of charge. The recall is expected to begin on October 27, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S19.

2007 Mercury Mariner fuel economy and fuel cost

City
18 MPG
Highway
23 MPG
Combined
20 MPG
Annual fuel cost (EPA)
$3,250
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2007 compared with other Mariner years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002005200620072008200920102011
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2005Caution5067219
2006Good1763320
2007Good033220
2008Avoid83461320.5
2009Avoid100315121

All Mercury Mariner years: best and worst →

Frequently asked questions

Is the 2007 Mercury Mariner reliable?
NHTSA data shows 33 complaints for the 2007 Mariner and a complaint index of 0, the lowest of any Mariner model year, earning it a Good verdict relative to other years.
What year Mercury Mariner should I avoid?
According to NHTSA complaint data, the 2008 and 2009 Mariner both carry Avoid verdicts, with complaint indexes of 83 and 100 and 461 and 315 complaints respectively, far higher than the 2007 model's 33 complaints.
Does the 2007 Mercury Mariner have a transmission recall?
Yes. Recall 15V606000 covers certain 2001-2008 Escape and Mariner vehicles for transmission issues, and NHTSA also lists a 2014 fuel system recall covering hybrid coolant pumps on 2006-2008 Mariner hybrids.
Why is the 2007 Mariner's verdict capped instead of Best?
NHTSA notes that complaint records for model years 2005-2009 are less complete, so the verdict is capped at Good even though the complaint index of 0 is the best among Mariner years.
What is the top problem area for the 2007 Mercury Mariner?
Engine complaints are the largest category, accounting for 12 of 33 complaints (36%), followed by Transmission & Powertrain at 11 complaints (33%).

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.