AI DamageMercury Montego: problems, complaints, bulletins
Summary for the Mercury Montego across 5 model years: 260 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Powertrain 33% of all complaints
- 2 Vehicle speed control 20% of all complaints
- 3 Electrical system 15% of all complaints
- 4 Engine 12% of all complaints
- 5 Service brakes 10% of all complaints
- 6 Structure 6% of all complaints
- 7 Engine and cooling 6% of all complaints
- 8 Fuel system 6% of all complaints
- Powertrain: 87 complaints (33% of all), 5 of them with a crash reported by the owner.
- Vehicle speed control: 51 complaints (20% of all), 3 of them with a crash reported by the owner.
- Electrical system: 40 complaints (15% of all), 1 of them with a crash reported by the owner.
- Engine: 30 complaints (12% of all), 1 of them with a crash reported by the owner.
- Service brakes: 26 complaints (10% of all), 2 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3 L · petrol · 6 cyl 2005–2007
- automatic, 6-speed 2005–2007
- CVT 2005–2007named in 11 complaints
Drive: FWD, AWD
Symptoms owners describe
How many of the 260 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) |
|---|---|---|---|
| Powertrain | 87 | 5 | 0 |
| Vehicle speed control | 51 | 3 | 0 |
| Electrical system | 40 | 1 | 0 |
| Engine | 30 | 1 | 0 |
| Service brakes | 26 | 2 | 0 |
| Structure | 16 | 2 | 0 |
| Engine and cooling | 15 | 0 | 0 |
| Fuel system | 15 | 1 | 0 |
| Fuel/propulsion system | 11 | 0 | 0 |
| Air bags | 10 | 6 | 0 |
| Exterior lighting | 8 | 1 | 0 |
| Suspension | 7 | 0 | 0 |
| Seat belts | 6 | 0 | 0 |
| Latches, locks, linkages | 4 | 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.
While traveling down the road the lights went out in the car quit running at 60 miles per hour was almost rear-ended knocked up steering wheel ended up in the ditch.
While driving approximately 30 mph, the vehicle experienced unintended acceleration and crashed into the rear of a second vehicle. Prior to the failure, the engine rpms erroneously increased and the vehicle surged forward. The front end of the vehicle sustained severe damage, but the air bags did not deploy.
The air bags failed to deploy. There were no warning indicators illuminated prior to the collision. The contact sustained chest pains, but no medical attention was required. A police report was filed. The vehicle was towed to a tow lot and deemed a total loss.
When hitting the brakes my car had a whining noise and accelerated not responding to my efforts to stop.I avoided the cars in front of me and also to the right of me by moving to the turning lane to stop myself from hitting anyone else.
While attempting to depress the brake pedal, the vehicle began to accelerate and the traction control, check transmission, and failed safe mode warning lights illuminated. Due to the failure, the contact crashed into a bush while attempting to park the vehicle. There were no injuries and a police report was not filed.
As I backed out of a parking space, the car surged & I hit another parked car behind me. Even though I had my foot on the brake, the car accelerated for a few seconds. I then placed the other foot on top of the right foot & put the gear into park & the car stopped.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Other models of this make
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.