2007 Mercury Mariner Hybrid Engine Problems
- Complaints
- 4about this part
- Share
- 13%of 31 total for the year
- Median mileage
- 70,050miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2007 Mercury Mariner Hybrid, 13% of the 31 complaints for this model year. Where a mileage was given, the median is 70,050 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.
“Travelling on illinois I-55 south early in the morning. About 2 miles north of us highway 6 exit car lost power and I noticed stop safely now message. I pulled off to side of road. Car started right up. I went about a 2 miles and car did the exact same thing. I was real close to the golf course and made it there. No problems on the way home or since. Car never acted or sounded ?funny?. Car repaired by local lincoln ford dealer. They said they replaced an engine coolant pump ($695 including labor and taxes) that is unique to hybrid. …”
NHTSA complaint #10459312, filed 2012-05, 70,100 miles“The contact owns a 2007 Mercury Mariner Hybrid. The contact stated that while waiting at a traffic light, the engine stalled and the check engine warning indicator illuminated. The contact received a notification for NHTSA campaign number 14v526000 (hybrid propulsion system). However, the part needed to remedy the vehicle was unavailable. The contact believed the failure was related to the recall. The manufacturer was not notified of the failure. The approximate failure mileage was 72,000.”
NHTSA complaint #10652694, filed 2014-11, 72,000 miles“The contact owns a 2007 Mercury Mariner Hybrid. While driving approximately 60 MPH, the engine stalled and the instrument panel displayed a triangle with an exclamation point. The panel displayed that the driver needed to pull over immediately. The contact pulled over and the ignition had to be turned to the off position for a few minutes in order for the vehicle to restart. The vehicle was taken to a dealer where it was diagnosed that the motor electronic coolant pump failed and needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #10819598, filed 2016-01, 70,000 milesEngine: other model years
Other parts of the 2007 Mercury Mariner Hybrid
8 complaintsEngine cooling
6 complaintsElectrical system
4 complaintsHybrid propulsion system
3 complaintsOther or unknown
3 complaintsTransmission and drivetrain
3 complaintsFuel system
2 complaintsSteering
2 complaintsBody and structure
2 complaintsEquipment
1 complaintsSeats
1 complaintsSuspension
1 complaints
← All problems reported for the 2007 Mercury Mariner Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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