2007 Mercury Mountaineer

Reliability, what owners report, and what it costs to keep.

69/100

Be careful

AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.

What owners actually report

Owners have filed 81 complaints with NHTSA about the 2007 Mercury Mountaineer, and it carries 1 recall. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.

Complaints by area, from NHTSA records for this model-year
Area	Complaints	Share
Power train	15	19%
Seats	15	19%
Electrical system	7	9%
Engine	4	5%
Vehicle speed control	4	5%
Seat belts	2	2%
Unknown or other	2	2%
Electrical system	2	2%
Structure	2	2%
Power train	2	2%

In owners' own words

Verbatim from NHTSA complaint records, trimmed for length.

The contact owns a 2007 Mercury Mountaineer. The contact stated that after shifting the transmission from park(P) to reverse(R), the vehicle failed to respond. The contact removed and reinserted the fob key in the igniti
NHTSA complaint: Power train

I buckle the seat belt and it just comes unbuckled spontaneously when I’m driving. I check to see if the seat belt is secure by pulling on it. It seems secure but still unbuckles. I usually have to redo my seatbelt every
NHTSA complaint: Seat belts

My husband had purchased 4 brand new COOPER TIRES EVOLUTION H/T M+S size P235 / 65 R 18 a number of years ago. My husband has since passed away. I cannot find my sales receipt due to the fact my husband had paid for th
NHTSA complaint: Tires

If you set cruise control while driving under 45 mph the engine shuts off.
NHTSA complaint: Engine

It happens every time I drive this vehicle. The ignition is lose, so the key jiggles and if their is too much bumping or shaking the key slightly moves and the seat and interior lights come on now I’ve tried Combat the i
NHTSA complaint: Electrical system

I was driving on the expressway and my truck just shut off. The car panel Illuminati to a check engine light and a wrench. I had to put on my caution light and make it to the shoulder. That was scary. I sat for 10 minute
NHTSA complaint: Unknown or other

HAD TO REPLACE TRANSMISSION COMPLETELY AT 137,000 MILES. THERE'S BEEN A LOT OF COMPLAINTS ABOUT THESE TRANSMISSIONS AT THIS MILEAGE AND FORD SHOULD BE RESPONSIBLE FOR SOME OF THE COST. THIS IS RIDICULOUS.
NHTSA complaint: Power train

I HAD TO REPLACE THE TRANSMISSION AND SOME OTHER RELATED PARTS IN MY VEHICLE AND I WAS INFORMED BY A DEALERSHIP THAT THERE WAS A "SILENT RECALL" ON THIS TRANSMISSION AND THAT EVEN THOUGH FORD MOTOR COMPANY WAS AWARE OF T
NHTSA complaint: Power train

Recalls on record

NHTSA lists 1 recall campaign for the 2007 Mercury Mountaineer. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.

Visibility:glass 07E104000

CERTAIN CURVED TEMPERED REPLACEMENT GLASS MANUFACTURED BY HANGZHOU SAFETY GLASS LTD AND SUPPLIED TO SAFELITE BY AUTO TEMP INC., IDENTIFIED AS DOT-430, AND SOLD FOR USE ON CERTAIN DOMESTIC AND FOREIGN VEHICLES MAY NOT BREAK INTO SMALL PIECES AS EXPECTED OF TEMPERED GLASS AND FAILS TO CONFORM TO FEDER

Risk: IN THE EVENT OF A VEHICLE CRASH, THE OCCUPANT(S) MAY BE SERIOUSLY INJURED BY SHATTERED GLASS.

Fix: SAFELITE WILL NOTIFY ITS RETAIL CUSTOMERS AND REPLACE THE GLASS FREE OF CHARGE. RETAIL CUSTOMERS CAN CONTACT SAFELITE TOLL FREE AT 1-888-843-2906. SAFELITE WILL NOTIFY ITS WHOLESALE CUSTOMERS AND REIM

The seven scores

Reliability raw	78	good
Longevity est.	77	good
Maintenance	71	good
Depreciation	67	good
Performance	65	good
Efficiency	29	below average

How it compares in its class

Percentile ranks against other SUVs in the catalog.

Reliability: better than 57% of SUVs
Longevity: better than 67% of SUVs
Running costs: better than 48% of SUVs
Value retention: better than 69% of SUVs

Which of these numbers are measured

What stands behind each score for this car:

Reliability 78: from NHTSA recalls and complaints. This one is a raw count: we do not have a sales figure for this model, so a high-volume car looks worse here than it should.
Longevity 77: an estimate from powertrain and brand record. No 200,000-mile population exists for a 2007 car yet, so this is a prior, not evidence.
Maintenance 71: repair-cost data where we have it for this model, otherwise a mechanical-complexity estimate from engine size, cylinder count and drivetrain.
Safety: no score. NHTSA crash testing thins out for older vehicles and we would rather show nothing than guess.

Common questions

What goes wrong with the 2007 Mercury Mountaineer?

Owners have filed 81 complaints with NHTSA for this model-year, and power train is the most reported area with 15 of them (19%). There is 1 recall on record. Check any specific car against its VIN before buying.

Is the 2007 Mercury Mountaineer reliable?

AVOIR scores its reliability 78/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.

How long will a 2007 Mercury Mountaineer last?

AVOIR scores its longevity 77/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2007 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.

Should I buy a 2007 Mercury Mountaineer?

AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 69/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.

Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.