2008 Mercury MarinerProblems, recalls & complaints

NHTSA has logged 461 owner complaints about the 2008 Mercury Mariner, most often about the steering. It is covered by 3 safety recalls, and for recall 15V-606 the manufacturer reports only 21% of affected cars repaired.

2008 Mercury Mariner

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through March 4, 2025. Updated daily. Photo: Kevauto, CC BY-SA 4.0.

Complaints by system

Where the 2008 Mercury Mariner has problems

461 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Steering2977
Power train660
Vehicle speed control310
Service brakes290
Electrical system270
Engine141
Fuel/propulsion system80
Air bags83
Engine and engine cooling60
15 other systems420

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

3 recalls

2008 Mercury Mariner recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

21%repaired · 2017 Q1

Automatic transmission: gear position indication (prndl)

Recall 15V-606 · Sep 29, 2015 · 57 vehicles · 12 repaired

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…

Problem, fix and repair progress →

54%repaired · 2016 Q1

Hybrid propulsion system

Recall 14V-526 · Sep 3, 2014 · 70,209 vehicles · 38,064 repaired

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.

Problem, fix and repair progress →

72%repaired · 2015 Q4

Steering: electric power assist system

Recall 14V-284 · May 29, 2014 · 740,878 vehicles · 534,179 repaired

Risk. 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.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercury.

Mileage at failure

When do steering problems start?

120kmiles, median

Based on the odometer reading in 257 steering complaints. 31% were reported before 100,000 miles.

median0k50k100k150k200k+
6under 30k miles79under 100k miles178100k miles or more
Owner-reported costs

What owners say repairs cost

Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.

Steering

29 owners mentioned a cost

$1,300median

Middle half: $700 – $2,000

Power train

11 owners mentioned a cost

$2,000median

Middle half: $913 – $3,831

Service brakes

9 owners mentioned a cost

$5,000median

Middle half: $4,000 – $5,000

If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.

Best & worst years

2008 vs. every other Mariner year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Mariner median. How we score

'01'02'03'04'05'06'07'08'09'10'11
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2008 Mercury Mariner safety ratings

2008 Mercury Mariner 4-DR. w/SAB (Later release) in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

  • Rollover: 3 stars (20.4% risk)
  • Stability control: Standard
  • Forward collision warning: No
  • Lane departure warning: No
2 investigations

NHTSA defect investigations

Federal investigations that included the 2008 Mercury Mariner, and the recalls they led to.

  1. Loss of power steering while drivingDP15001 · closed Jun 14, 2018
    No recall
  2. TIRE VALVE CRACKINGPE08060 · closed Apr 9, 2009
    No recall
In owners' words

What Mariner owners report

Recent steering complaints filed with NHTSA, shortened. Personal details are removed.

The contact owns a 2008 Mercury Mariner. The contact stated that while driving at 55 -60 MPH, the power steering failed. The steering wheel became increasingly difficult to maneuver. The vehicle was turned off while the contact inspected the vehicle. The vehicle was restarted but a short distance…
Complaint 11632456 · Dec 26, 2024 · 220,000 miles
The contact owns a 2008 Mercury Mariner. The contact stated upon starting the vehicle, the steering wheel was significantly difficult to turn. There was no warning light illuminated. The vehicle was towed to an independent mechanic, where the contact was informed that the electric power steering…
Complaint 11621199 · Oct 22, 2024 · 104,392 miles
The steering wheel does not return to center when making turns. It is more pronounced during left turns. This is a dangerous condition that could result in the vehicle going left or right of center and striking pedestrians, bicyclists, oncoming traffic, fixed objects. An independent service center…
Complaint 11590127 · May 22, 2024

Own a 2008 Mariner?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.