AI Damage2007 Mercury Mountaineer: common problems
Owners of the 2007 Mercury Mountaineer filed 81 complaints with NHTSA, most often about seats and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 81
- involving a crash
- 3
What fails most often
- 1 Seats 32% of all complaints
- 2 Powertrain 31% of all complaints
- 3 Electrical system 20% of all complaints
- 4 Vehicle speed control 9% of all complaints
- 5 Engine 6% of all complaints
- 6 Steering 6% of all complaints
- 7 Structure 6% of all complaints
- 8 Engine and cooling 5% of all complaints
- Seats: 26 complaints (32% of all).
- Powertrain: 25 complaints (31% of all), 3 of them with a crash reported by the owner.
- Electrical system: 16 complaints (20% of all).
- Vehicle speed control: 7 complaints (9% of all), 2 of them with a crash reported by the owner.
- Engine: 5 complaints (6% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 4 L · petrol · 6 cyl
- 4.6 L · petrol · 8 cyl
- automatic, 5-speed
- automatic, 6-speed
Drive: RWD, AWD
Symptoms owners describe
How many of the 81 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Seats | 26 | 0 | 0 |
| Powertrain | 25 | 3 | 0 |
| Electrical system | 16 | 0 | 0 |
| Vehicle speed control | 7 | 2 | 0 |
| Engine | 5 | 0 | 0 |
| Steering | 5 | 0 | 0 |
| Structure | 5 | 1 | 0 |
| Engine and cooling | 4 | 0 | 0 |
| Seat belts | 3 | 0 | 0 |
| Visibility | 3 | 0 | 0 |
| Wheels | 3 | 0 | 0 |
| Exterior lighting | 2 | 0 | 0 |
| Tires | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
I turn my 2007 mountaineer awd on and it accelerates, so I let it stop idling high and if it doesn't totally shut off I then proceed to put my truck either in drive or reverse and it jerks very hard. I have already hit my garage because I was not able to stop the vehicle.
The police gave her a ticket for careless driving. The vehicle was towed to an authorized dealer. She was not informed of the repairs that were made to the vehicle. The contact has had problems with the vehicle since she purchased it.
I buckle the seat belt and it just comes unbuckled spontaneously when Iâm driving. I check to see if the seat belt is secure by pulling on it. It seems secure but still unbuckles. I usually have to redo my seatbelt every 5 minutes. I do not feel like it will keep me safe in a collision
We will not be able to warranty your tires for you......we need a sales receipt......" I had my good friend take my vehicle to a local tire dealer and installer recommended by COOPER TIRES and this tire dealer found that: (1) all 4 COOPER TIRES on my vehicle look and are brand new (2) tire tread depth on all 4 COOPER…
The ignition is lose, so the key jiggles and if their is too much bumping or shaking the key slightly moves and the seat and interior lights come on now Iâve tried Combat the issue with keeping the lights off on the interior and thought maybe I could turn off the seat function still havenât figured that out yet
When I went to accelerate my mercury mountaineer when in to limp mode. As I inspected the suv for problems I noticed the my engine/transmission wire harness was brittle and exposing bare wire and that the wires were touching each others cause them to short off the vehicle computer system and frying electrical…
I am receiving false readings as to the activation of the air bags. This happens when I am starting the vehicle and also when I am operating the vehicle on the highway. I can turn the vehicle off and restart it, and sometimes the indicator works properly and sometimes it does not.
Car ran rough & hesitated/surged upon acceleration. Apparently this is a common ford problem involving premature spark plug break down in the ford triton engine see ford spark plug class action settlement.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 4,046 of 36,656 model years in the NHTSA data (top 11% most complained about).
On average one model year of the Mountaineer has 125 complaints (16 years in the data). This year has 81, below average.
What to check before buying
- Seats. Occupant sensor, power adjustment, seat mounts.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
Other years of this model
- Mountaineer 19963 sources
- Mountaineer 1997328 sources
- Mountaineer 1998236 sources
- Mountaineer 1999151 sources
- Mountaineer 2000123 sources
- Mountaineer 200122 sources
- Mountaineer 2002372 sources
- Mountaineer 2003152 sources
- Mountaineer 2004210 sources
- Mountaineer 200582 sources
- Mountaineer 2006117 sources
- Mountaineer 200896 sources
- Mountaineer 20096 sources
- Mountaineer 201013 sources
- Mountaineer 99999 sources
Questions and answers
What are the most common problems with the 2007 Mercury Mountaineer?
Owner complaints to NHTSA most often mention: seats, powertrain, electrical system. Total complaints: 81. The most frequent symptoms in complaint texts: warning lights, check engine (15%), jerking, harsh shifts (9%), unintended acceleration (6%).
How many service bulletins (TSB) were issued for the 2007 Mercury Mountaineer?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2007 Mercury Mountaineer from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2007 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.