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Fuel systemPart report

2007 Mercury Mariner Hybrid Fuel system Problems

Complaints
2about this part
Share
6%of 31 total for the year
Median mileage
62,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 2007 Mercury Mariner Hybrid, 6% of the 31 complaints for this model year. Where a mileage was given, the median is 62,000 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.

“Car engine sudden went dead in the middle of highway and message appeared that pull over now for safety. No power to wheels ect. Barely found safe place to pull over. Dealership said it was caused by leaky water pump. Vehicle was repaired at folsom lake ford. No note was on the display saying water pump, just the above message. Had to wait and restart engine. This could have caused a serious accident in high speed traffic on a freeway, ect.”

NHTSA complaint #10507344, filed 2013-04, 59,000 miles

Fuel system: other model years

YearComplaintsShare of year
2010111%
2009314%
20081816%
200726%
200639%

Other parts of the 2007 Mercury Mariner Hybrid

Brakes
8 complaints
Engine cooling
6 complaints
Electrical system
4 complaints
Engine
4 complaints
Hybrid propulsion system
3 complaints
Other or unknown
3 complaints
Transmission and drivetrain
3 complaints
Steering
2 complaints
Body and structure
2 complaints
Equipment
1 complaints
Seats
1 complaints
Suspension
1 complaints

← All problems reported for the 2007 Mercury Mariner Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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