VehicleVerdict

2008 Mercury Mariner problems

Verdict · NHTSA data

One of the years to avoid

With 554 complaints filed to NHTSA — about 6.1 times the median Mariner year — the 2008 model ranks #1 of 11 Mariner years for complaint volume. It lands on the years-to-avoid list.

The trouble concentrates in one system: steering issues account for 54% of all reports (300 of 554), far ahead of transmission at 68.

554

NHTSA complaints

4

Recalls

2

Investigations

11

Crash-involved

0

Fires reported

5

Injuries

0

Deaths

NCAP overall

How does 2008 compare to other Mariner years?

Mariner NHTSA complaints by model year, 2008 highlighted554 complaints2001: 0 complaints2002: 0 complaints2003: 0 complaints2004: 0 complaints2005: 100 complaints2006: 91 complaints2007: 40 complaints2008: 554 complaints2009: 422 complaints2010: 393 complaints2011: 121 complaints
Mariner NHTSA complaints by model year, 2008 highlighted. Red bars are years to avoid.

See all Mariner years to avoid →

What are the most common 2008 Mercury Mariner problems?

ComponentComplaintsShare
Steering30054%
Transmission6812%
Brakes366%
Electrical System336%
Speed Control316%
Engine204%
Other193%
Fuel System112%
Tires & Wheels92%
Airbags81%
Body & Structure61%
Suspension51%
Visibility & Wipers31%
Latches & Locks20%
Lighting10%
Seat Belts10%
Driver Assistance10%

Does the 2008 Mercury Mariner have recalls?

4 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

15V606000TransmissionSeptember 29, 2015 · 57 units

Defect

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.

Consequence

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.

15E045000SuspensionJune 3, 2015 · 576 units

Defect

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.

Consequence

Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehicle, increasing the risk of a crash.

Remedy

Timken has begun notifying distributors who will offer purchasers replacement wheel bearings, free of charge. The recall began on May 21, 2015. Owners may contact Timken customer service at 1-866-984-6536.

14V526000Fuel SystemSeptember 3, 2014 · 70,209 units

Defect

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.

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.

14V284000SteeringMay 29, 2014 · 740,878 units

Defect

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.

Consequence

If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash.

Remedy

Ford will notify owners, and dealers will update the software for the power steering control module (PSCM) and the instrument cluster module, free of charge. If a vehicle shows a history of a loss of the torque sensor signal or fault codes relating to the PSCM when the vehicle is brought in for the recall remedy, the affected components will be replaced, free of charge. The recall began on July 18, 2014. Owners may contact Ford customer service at 1-800-392-3673. Ford's number for this recall is 14S05.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE POWER STEERING FAILED CAUSING HER TO LOSE CONTROL OF THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT SUSTAINED UNKNOWN INJURIES. A POLICE REPORT WAS NOT…

Complaint filed with NHTSA · Steering · May 30, 2014 · crash

MY POWER STEERING WENT OUT WHILE I WAS DRIVING. I TOOK THIS VEHICLE TO MY MECHANIC AND HE SAID THAT IT WAS RELATED TO THE POWER STEERING RECALL THEY DID ON THIS TYPE OF CAR. BUT WHEN I PUT IN MY VIN IT SAID THIS CAR WAS NOT RECALLED. SO I AM WONDERING IF YOU GUYS SKIPPED OVER MY VEHICLE. I WOULD…

Complaint filed with NHTSA · Transmission · March 15, 2020

THIS HAD BEEN A GREAT CAR FOR ME UNTIL TODAY. I LEARNED THE HYDRAULIC CONTROL UNIT IS BAD AND WILL REQUIRE NEARLY $5000 TO REPLACE. IT IS NOT SAFE TO DRIVE. IT HAD 105000 MILES. IT IS NOT WORTH MUCH MORE THAN $5K. I HAVE NO CHOICE BUT TO TRY AND TRADE THE CAR IN. I LATERALLY JUST GAVE IT TO MY…

Complaint filed with NHTSA · Brakes · July 21, 2016

POWER STEERING COMPLETELY FAILED WHILE OPERATING THE CAR, POSING A DANGER. TRANSMISSION LURCHES ON UPSHIFT BETWEEN 1 - 2 GEAR WHILE ACCELERATING. ELECTRICAL SYSTEM WILL NOT CHARGE BATTERY AND COMPLETELY FAILS WHILE THE VEHICLE IS IN OPERATION ON THE HIGHWAY, POSING A DANGER. VEHICLE MAY OR MAY NOT…

Complaint filed with NHTSA · Electrical System · August 9, 2017

I REALIZED SOMETIME LAST YEAR THAT MY THROTTLE WAS STICKING WHEN I WOULD START THE CAR AND BEGIN TO TAKE OFF. IT WAS HERE AND THERE AND THEN I MUST HAVE GOTTEN USE TO IT BUT NOW IT DOES IT EVEN WHEN I'M DRIVING, IT STICKS ALL THE TIME. NOW IT DOESN'T WANT TO SHIFT AT THE RIGHT TIMES AND IT ACTS…

Complaint filed with NHTSA · Speed Control · June 21, 2020

2008 Mercury Mariner — common questions

Is the 2008 Mercury Mariner reliable?

NHTSA data argues against it: 554 complaints put the 2008 model at #1 of 11 Mariner years. It is one of the Mariner years to avoid.

What are the most common 2008 Mariner problems?

According to NHTSA complaint data, the leading problem areas are steering (300 complaints), transmission (68 complaints), brakes (36 complaints).

Does the 2008 Mercury Mariner have recalls?

Yes — NHTSA lists 4 recall campaigns affecting the 2008 Mercury Mariner. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2008 Mercury Mariner under NHTSA investigation?

NHTSA opened 2 investigations into this model year; all are now closed.

Which Mercury Mariner years should you avoid?

Based on complaint rates and open investigations, the Mariner years to avoid are 2008, 2009, 2010. The cleanest record among Mariner years belongs to 2004.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.