2011 Mercury Mariner problems and complaints
Owners have filed 87 complaints with NHTSA about the 2011 Mercury Mariner. The most-reported areas: Power Train (24), Fuel/Propulsion System (22), Steering (20).
Key takeaways
- 87 owner complaints on file with NHTSA.
- 2 involve a crash, 0 a fire, 1 reported injury.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Power Train | 24 | 28% |
| Fuel/Propulsion System | 22 | 25% |
| Steering | 20 | 23% |
| Vehicle Speed Control | 15 | 17% |
| Engine | 11 | 13% |
| Fuel System | 7 | 8% |
| Gasoline | 7 | 8% |
| Electrical System | 6 | 7% |
| Unknown Or Other | 3 | 3% |
| Visibility/Wiper | 3 | 3% |
| Visibility | 3 | 3% |
| Engine And Engine Cooling | 3 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2011 Mercury Mariner 4DR SUV 4x4 | 3/5 | 3/5 | 3/5 | 3/5 |
| 2011 Mercury Mariner 4DR SUV 4x2 | 3/5 | 3/5 | 3/5 | 3/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Steering - filed 2026-05-19
The contact owns a 2011 Mercury Mariner. The contact stated that while driving at an undisclosed speed, the power steering became inoperable with no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the steering shaft port sensor had failed and needed to be replaced. The vehicl...
Suspension - filed 2026-03-27
My dealer says my subframe needs to be replaced, and controll arm at a cost of 3600 dollars, I don't understand why my subframe needs to be replaced, I've owned cars for as long as 20 yrs and never had that problem. This sounds like a manufacturers problem.
Fuel System, Gasoline - filed 2026-02-11
The contact owns a 2011 Mercury Mariner. The contact stated that while driving at an undisclosed speed, there was a strong fuel odor inside the vehicle. In addition, the contact stated that the fuel odor was noticeable all the way to the rear seat. The vehicle was taken to the dealer; however, the contact was informed ...
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More for the 2011 Mercury Mariner
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.