2007 Mercury Mariner problems & reliability
33 owner complaints filed with NHTSA for the 2007 Mercury Mariner, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
1 complaint report injuries (1 injured).
Federal crash records (FARS 2020–2023): 2007 Mercury Mariner vehicles were involved in 10 fatal crashes with 7 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Power Train → | 11 | 33% |
| Electrical System | 7 | 21% |
| Engine | 7 | 21% |
| Vehicle Speed Control | 4 | 12% |
| Air Bags | 2 | 6% |
| Engine and Engine Cooling | 2 | 6% |
| Suspension | 2 | 6% |
| Seat Belts | 1 | 3% |
| Service Brakes, Hydraulic | 1 | 3% |
| Steering | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 80,000 miles (middle 50% between 49,845 and 100,757 miles), based on 29 complaints that included mileage.
Complaints by incident year
What owners report
“90sWhile driving, the vehicle will suddenly display a warning message that says “Stop Safely Now”. When this message appears, the hybrid system overheats and the vehicle immediately loses power. The gasoline engine and electric motor both shut down without warning, even at highway speeds. I am forced to coast to the…”
Engine · filed Nov 29, 2025
“Rear-ended a snow plow going 30-35 mph when I was going 60 mph and the driver-side airbag failed to deploy resulting in serious injury.*dt*jb*dt*jb*dt*dt*jb*jb*dt*jb*jb*dt*jb*dt”
Air Bags · filed Mar 2, 2021
“When shifting into gear the vehicles wrench light comes on and regen disabled show up and the vehicle won't accelerate. I can shut it off and back on and the wrench light will go away for a couple miles then back on with the same problems”
Unknown OR Other · filed Sep 17, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- TIRE VALVE CRACKING
Preliminary Evaluation PE08060 · opened Oct 14, 2008 · closed Apr 9, 2009
Technical service bulletins
15 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2007 Mercury Mariner. The 10 most recent:
The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a…
SSM 46085 · Service Bulletin/Repair Instructions · issued Sep 21, 2016
Ford: there is excessive engine or exhaust noise, or an exhaust odor due to an exhaust leak. There will be no warning codes or lights. 2007-2008 escape/mariner. *rm
AS-21534 · Service Bulletin/Repair Instructions · issued Oct 1, 2010
Ford/mercury: new service kit available for accelerator cable to pedal connection. Some vehicles may require the accelerator cable to accelerator pedal connection repaired. A new service clip has been released for use…
TSB-09-21-9 · Service Bulletin/Repair Instructions · issued Sep 1, 2010
2005-08 escape/escape hybrid/mariner - 2006-08 mariner hybrid - wheel speed sensor ring replacement procedure update to workshop manual. *nj
20213 · Service Bulletin/Repair Instructions · issued Apr 1, 2008
Slow fuel fill and/or dtc p0451. *nj
08-5-5 · Service Bulletin/Repair Instructions · issued Mar 1, 2008
Multiple vehicle lines - intermittent pcm, fuel pump, ign. Coil, a/c, abs or fog lamp operation. *nj
20144 · Service Bulletin/Repair Instructions · issued Feb 1, 2008
Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) u2062 (hybrid only). *nj
08-3-1 · Service Bulletin/Repair Instructions · issued Feb 1, 2008
Service harness installation - corrosion of a resistor in the battery power unit. Also have an owner's letter. *nj
0748 · Service Bulletin/Repair Instructions · issued Aug 22, 2007
Multiple vehicle lines - intermittent pcm, fuel pump, ign, coil, a/c, abs or fog lamp operation. *nj
19865 · Service Bulletin/Repair Instructions · issued Jul 1, 2007
Slow fuel fill due to clogged vent. *kb
19536 · Service Bulletin/Repair Instructions · issued Dec 1, 2006
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2007 Mercury Mariner has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2007 Mercury Mariner?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 80,000 miles — budget accordingly if the car is approaching that mileage.