2011 Mercury Mariner Other or unknown Problems
- Complaints
- 3about this part
- Share
- 3%of 87 total for the year
- Median mileage
- 172,090miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2011 Mercury Mariner, 3% of the 87 complaints for this model year. Where a mileage was given, the median is 172,090 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Front lower sub frame rust through in aria under A/C , close to point of braking . Seams to be a comin problem as my repair shop said they replace three or four a year . Some have broken while on road causing steering problems .this apparently happens when the vehicles are about ten years old .# found on inspection .”
NHTSA complaint #11372388, filed 2020-10, 172,090 miles“Just bought this vehicle 1/25/2018. It has a moldy smell. How can I tell if it is a flood vehicle? It also has a air leak in the front windshield, that I can hear, when driving. This vehicle, was from louisiana. I will contact the dealer, monday morning about the windshield.”
NHTSA complaint #11065461, filed 2018-01“This car has excessive under body rust under all the wheels wells. I was just told that my car would not pass a State Inspection because the on the front drivers side there is a bracket that holds up the engine is almost totally gone. I have read and over that this vehicle has a known rust and corrosion issue and Mercury/Ford has not been made responsible. I bought this car from a Ford Dealer in Aberdeen, MD used in 2018 and made them aware that I noticed rust on the rear wheel panels. …”
NHTSA complaint #11430629, filed 2021-08Other or unknown: other model years
Other parts of the 2011 Mercury Mariner
28 complaintsTransmission and drivetrain
24 complaintsSteering
20 complaintsVehicle speed control
15 complaintsEngine
11 complaintsElectrical system
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsEngine cooling
3 complaintsAir bags
2 complaintsEquipment
1 complaintsSuspension
1 complaints
← All problems reported for the 2011 Mercury Mariner
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology