Worst 2003 Mercury Mountaineer Problems
Top 3 most-reported issues with average mileage at failure.
Body Structure
Automatic Transmission
Transmission / Drivetrain
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All Problems by Category
Every NHTSA complaint category for the 2003 Mercury Mountaineer.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Body Structure | 26 | — | — | 87,128 mi | |
| Automatic Transmission | 19 | 3 | — | 57,356 mi | |
| Transmission / Drivetrain | 15 | 1 | 1 | 127,280 mi | |
| Structure:Body:Hatchback/Liftgate | 15 | — | — | 61,686 mi | |
| Electrical Faults | 10 | — | — | 75,825 mi | |
| Structural Problems | 9 | — | — | 79,886 mi | |
| Unintended Acceleration | 7 | — | 1 | 94,850 mi | |
| Engine & Cooling | 6 | — | — | 78,531 mi | |
| Airbags | 5 | — | — | 129,922 mi | |
| Hydraulic Brakes | 5 | — | 1 | 75,250 mi | |
| Steering Defects | 5 | — | — | 96,419 mi | |
| Structure:Body:Hatchback/Liftgate:Hinge And Attachments | 5 | — | — | 60,374 mi | |
| Suspension Failures | 5 | — | — | 83,226 mi | |
| Suspension:Rear | 4 | — | — | — | |
| Fuel System | 3 | — | — | — | |
| Latches / Locks | 3 | — | — | — | |
| Air Bags:Frontal:Sensor/Control Module | 2 | — | — | — | |
| Air Bags:Side/Window | 2 | — | — | — | |
| Engine And Engine Cooling:Cooling System | 2 | — | — | — | |
| Other Equipment | 2 | — | — | — | |
| Fuel System, Other:Storage:Fuel Gauge System | 2 | — | — | — | |
| Power Train:Automatic Transmission:Gear Position Indication (Prndl) | 2 | 1 | — | — | |
| Power Train:Automatic Transmission:Torque Converter | 2 | — | — | — | |
| Power Train:Driveline:Differential Unit | 2 | — | 2 | — | |
| Seat-Related Issues | 2 | 1 | — | — | |
| Brakes | 2 | — | — | — | |
| Service Brakes, Hydraulic:Pedals And Linkages | 2 | — | — | — | |
| Vehicle Speed Control:Accelerator Pedal | 2 | — | — | — | |
| Visibility | 2 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2003 Mercury Mountaineer. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Other Mercury Mountaineer Years
2003 Mercury Mountaineer — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2003 Mercury Mountaineer reliable?
What are common problems with the 2003 Mercury Mountaineer?
At what mileage do problems start on the 2003 Mercury Mountaineer?
How safe is the 2003 Mercury Mountaineer?
Does the 2003 Mercury Mountaineer have any recalls?
Should I buy a 2003 Mercury Mountaineer?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full Mercury Mountaineer reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2003 Mercury Mountaineer
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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