WHILE DRIVING AT ANY SPEED THE SEAT WILL GO BACK TO ITS PARKED POSITION AND THE INTERIOR LIGHT COMES ON AS IF THE CAR WAS SHUT OFF. YOU TOUCH THE KEY IGNITION AND THE SEAT GOES BACK TO DRIVING POSITION AND THE LIGHT GOES OUT. *KB
2007 Mercury Mountaineer
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2007 Mercury Mountaineer do not stand out strongly from the model-year median of 117.
About this comparison →How this year compares
Owner complaints by model year
Compare all Mountaineer years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
67 reports with mileage · 14 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Seats. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
81 reportsTL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT WAS DRIVING APPROXIMATELY 50 MPH WHEN A VIBRATION WAS FELT AND THE TRANSMISSION BEGAN TO SLIP GEARS. THE FAILURE APPEARED TO OCCUR MORE FREQUENTLY IN WARM WEATHER TEMPERATURES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER BUT THE TECHNICIAN WAS UNABLE TO DUPLICATE THE…
Read full complaint
TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT WAS DRIVING APPROXIMATELY 50 MPH WHEN A VIBRATION WAS FELT AND THE TRANSMISSION BEGAN TO SLIP GEARS. THE FAILURE APPEARED TO OCCUR MORE FREQUENTLY IN WARM WEATHER TEMPERATURES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER BUT THE TECHNICIAN WAS UNABLE TO DUPLICATE THE PROBLEM. IN ADDITION, THE INSTRUMENT PANEL AND GAUGES WOULD ILLUMINATE INTERMITTENTLY AS A RESULT OF DEFECTIVE PIXELS. THE FRONT DRIVER'S SIDE POWER SEAT WOULD MOVE BACKWARD AND FORWARD FREELY WHILE THE VEHICLE WAS IN MOTION. THE CONTACT WOULD SHUT OFF THE VEHICLE AND ONCE RESTARTED, THE FAILURES WOULD CORRECT INDEPENDENTLY UNTIL LATER RECURRING WITHOUT WARNING. IN ADDITION, THE HEADLIGHTS FAILED INTERMITTENTLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED FOR THE FAILURES. THE MANUFACTURER WAS NOTIFIED OF THE DEFECTS. THE APPROXIMATE FAILURE MILEAGE WAS 46,000.
IN REGARDS TO FITTING TWO BACKLESS BOOSTER SEATS IN THE MIDDLE ROW OF A 60-40 FOLD BENCH: ON THE PASSENGER SIDE- THE SEAT DOES NOT SLOPE ON THE SIDES AND THE BUCKLE HAS A CLOTH STRAP AND IT IS FLEXIBLE AND MOVES OUT OF THE SLOT TO FIT TO HIS BUCKLE. THE SEAT IS SLIGHTLY WIDER THAN THE DRIVERS SIDE. DRIVER'S SIDE- THE SEAT IS MO…
Read full complaint
IN REGARDS TO FITTING TWO BACKLESS BOOSTER SEATS IN THE MIDDLE ROW OF A 60-40 FOLD BENCH: ON THE PASSENGER SIDE- THE SEAT DOES NOT SLOPE ON THE SIDES AND THE BUCKLE HAS A CLOTH STRAP AND IT IS FLEXIBLE AND MOVES OUT OF THE SLOT TO FIT TO HIS BUCKLE. THE SEAT IS SLIGHTLY WIDER THAN THE DRIVERS SIDE. DRIVER'S SIDE- THE SEAT IS MORE CONTOURED AND THE BUCKLE IS AFFIXED TO THE SEAT AND DOES NOT MOVE OR COME UP BECAUSE OF THE 60-40 SPLIT. WHEN THE BOOSTER SEAT IS PLACED OUT OF THE EDGE OF THE CONTOUR ON THE DRIVERS SIDE- IT COMPLETELY COVERS THE BUCKLE. THEREFORE, ONE MUST SIT THE BOOSTER UNSAFELY AT AN ANGLE WHERE ONE SIDE IS HIGHER THAN THE OTHER TO GET THE BUCKLE TO FIT IN. I AM CERTAIN IN THE EVENT I SLAM ON MY BRAKES OR GET REARENDED, ONE CHILD'S SEAT WOULD GO FLYING, WHEREAS THE OTHER SEAT FITS SAFE AND SECURE (PASSENGER SIDE). *TR
TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE DEALER INFORMED THE CONTACT THE RADIATOR NEEDED TO REPLACED. THE VEHICLE WAS TAKEN TO THE DEALER WHO WILL REPAIR THE FAILURE AT THE CONTACTS EXPENSE. THE DEALER INFORMED HER THERE WAS NO RECALLS OR WARRANTY ON THE VEHICLE. THE MANUFACTURER WAS CONTACTED AND OFFERED NO ASSISTA…
Read full complaint
TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE DEALER INFORMED THE CONTACT THE RADIATOR NEEDED TO REPLACED. THE VEHICLE WAS TAKEN TO THE DEALER WHO WILL REPAIR THE FAILURE AT THE CONTACTS EXPENSE. THE DEALER INFORMED HER THERE WAS NO RECALLS OR WARRANTY ON THE VEHICLE. THE MANUFACTURER WAS CONTACTED AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS 61,000. UPDATED 06/03/11 *BF THE CONSUMER STATED ONE MONTH LATER, THE POWER STEERING PUMP HAD TO BE REPLACED. UPDATED 07/08/11
I TURN MY 2007 MOUNTAINEER AWD ON AND IT ACCELERATES, SO I LET IT STOP IDLING HIGH AND IF IT DOESN'T TOTALLY SHUT OFF I THEN PROCEED TO PUT MY TRUCK EITHER IN DRIVE OR REVERSE AND IT JERKS VERY HARD. I HAVE ALREADY HIT MY GARAGE BECAUSE I WAS NOT ABLE TO STOP THE VEHICLE. I ALREADY TOOK IT TO FORD AND THEY TOLD ME THAT THE ENGI…
Read full complaint
I TURN MY 2007 MOUNTAINEER AWD ON AND IT ACCELERATES, SO I LET IT STOP IDLING HIGH AND IF IT DOESN'T TOTALLY SHUT OFF I THEN PROCEED TO PUT MY TRUCK EITHER IN DRIVE OR REVERSE AND IT JERKS VERY HARD. I HAVE ALREADY HIT MY GARAGE BECAUSE I WAS NOT ABLE TO STOP THE VEHICLE. I ALREADY TOOK IT TO FORD AND THEY TOLD ME THAT THE ENGINE LIGHT IS NOT ON SO THEY CAN'T DO ANYTHING ABOUT IT. THEY LITTLE WRENCH SYMBOL IS ON THOUGH. I AM SO SCARED THAT I AM GOING TO END UP KILLING SOMEONE. I WISH I COULD AFFORD TO NOT DRIVE MY TRUCK AROUND BUT IT IS MY ONLY TRANSPORTATION. I HAVE TO DRIVE MY 4 KIDS WITH ME AND IT CONCERNS ME. SOME ONE PLEASE HELP, FROM WHAT I SEE IS ANOTHER TOYOTA DISASTER WAITING TO HAPPEN. *TR
TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING 12-14 MPH AND ATTEMPTING TO SLOW DOWN TO A STOP, THE VEHICLE LUNGED FORWARD. THE CONTACT DEPRESSED THE BRAKE PEDAL MORE FIRMLY TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO COULD NOT DUPLICATE THE FAILURE. ONCE WHILE DRIVING IN REVERSE, THE VEHICL…
Read full complaint
TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING 12-14 MPH AND ATTEMPTING TO SLOW DOWN TO A STOP, THE VEHICLE LUNGED FORWARD. THE CONTACT DEPRESSED THE BRAKE PEDAL MORE FIRMLY TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO COULD NOT DUPLICATE THE FAILURE. ONCE WHILE DRIVING IN REVERSE, THE VEHICLE LUNGED FORWARD AND PINNED HIS SON BETWEEN HIS VEHICLE AND ANOTHER. THE CHILD SUSTAINED ARM INJURIES. NO POLICE REPORT WAS FILED. THE FAILURE HAD BEEN OCCURRING SINCE 2008. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE CONTACT WAS UNSURE OF WHAT THE DEALER DID TO REMEDY THE PROBLEM. THE FAILURE CONTINUED AND PROGRESSED TO A MORE CONSISTENT PROBLEM. THE VEHICLE HAD NOT BEEN REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 50 AND THE CURRENT MILEAGE WAS 50,000.
I AM THE OWNER OF A 2007 MERCURY MOUNTAINEER. IT HAS ABOUT 64,000 MILES ON IT, MOST OF THEM HIGHWAY MILES. I HAVE A LEAK IN MY RADIATOR. THE DEALER SAYS IT IS A DEFECT IN THE RADIATOR, AND NO CORROSION IS PRESENT. IT IS OUT OF WARRANTY, SO I MUST BEAR THE COST OF REPLACEMENT OF THE RADIATOR. COST ~$700. I DO NOT DRIVE OFF …
Read full complaint
I AM THE OWNER OF A 2007 MERCURY MOUNTAINEER. IT HAS ABOUT 64,000 MILES ON IT, MOST OF THEM HIGHWAY MILES. I HAVE A LEAK IN MY RADIATOR. THE DEALER SAYS IT IS A DEFECT IN THE RADIATOR, AND NO CORROSION IS PRESENT. IT IS OUT OF WARRANTY, SO I MUST BEAR THE COST OF REPLACEMENT OF THE RADIATOR. COST ~$700. I DO NOT DRIVE OFF ROAD, SO THERE IS NO VALID REASON THE RADIATOR SHOULD HAVE FAILED. DURING AN INTERNET SEARCH, I DISCOVERED THIS IS A COMMON PROBLEM WITH 2006 AND 2007 MERCURY MOUNTAINEERS AND FORD EXPLORERS. THIS ISSUE SHOULD BE INVESTIGATED, AND FORD HELD ACCOUNTABLE FOR PUTTING DEFECTIVE PARTS IN THEIR VEHICLES. *TR
I HAVE A 2007 MERCURY MOUNTAINEER WITH 42,000 MILES ON IT AND WAS NOTIFIED BY MY DEALERSHIP THAT THERE IS A LEAK IN THE RADIATOR AND IT NEEDS TO BE REPLACED. MY DEALERSHIP TOLD ME THIS WAS COMMON PROBLEM WITH MOUNTAINEERS BUT FORD WILL NOT STAND BEHIND THE EQUIPMENT. *TR
WHEN COMING TO SLOW STOP, THE VEHICLE WILL LUNGE FORWARD BEFORE COMPLETELY STOPPING. THIS BEHAVIOR STARTED SEVERAL MONTHS AGO AND WAS VERY RANDOM IN THE BEGINNING, BUT HAS BECOME MORE AND MORE FREQUENT - ALMOST EVERY TIME I COME TO COMPLETE STOP. VEHICLE ALSO HESITATES WHEN GAS IS PRESSED AND THEN SURGES FORWARD. THAT BEHAVIO…
Read full complaint
WHEN COMING TO SLOW STOP, THE VEHICLE WILL LUNGE FORWARD BEFORE COMPLETELY STOPPING. THIS BEHAVIOR STARTED SEVERAL MONTHS AGO AND WAS VERY RANDOM IN THE BEGINNING, BUT HAS BECOME MORE AND MORE FREQUENT - ALMOST EVERY TIME I COME TO COMPLETE STOP. VEHICLE ALSO HESITATES WHEN GAS IS PRESSED AND THEN SURGES FORWARD. THAT BEHAVIOR IS VERY RANDOM AT THIS STAGE, BUT CAR HAS DONE THAT OVER THE PAST YEAR. BECAUSE OF THE "LUNGING" AT STOPS, I HAVE TAKEN VEHICLE TO REPAIR SHOP AND THEY INDICATE THE VEHICLE'S COMPUTER NEEDS TO BE UPDATED. THIS APPEARS TO BE A COMMON PROBLEM WITH THIS MAKE/MODEL/YEAR. *TR
TRANSMISSION JERKS AHEAD WHILE TRAVELING ON LONG DISTANCES AND SHORT. IT HAS GOTTEN WORSE. WHEN I APPLY GAS AND USE THE PASSING GEAR TO ACCELERATE IT SHAKES VIOLENTLY. GOING IN AND OUT OF NEUTRAL IT WOULD SEEM. VEHICLE IS 2007 53,000 MILES. CURRENTLY AT DEALER WITH TRANSMISSION SPECIALIST. THEY ARE TALKING TO FORD HQ FOR DIRECTI…
Read full complaint
TRANSMISSION JERKS AHEAD WHILE TRAVELING ON LONG DISTANCES AND SHORT. IT HAS GOTTEN WORSE. WHEN I APPLY GAS AND USE THE PASSING GEAR TO ACCELERATE IT SHAKES VIOLENTLY. GOING IN AND OUT OF NEUTRAL IT WOULD SEEM. VEHICLE IS 2007 53,000 MILES. CURRENTLY AT DEALER WITH TRANSMISSION SPECIALIST. THEY ARE TALKING TO FORD HQ FOR DIRECTION AND HAVE TRIED UNSUCCESSFULLY TO FIX IT SO FAR. THEY ARE NOW LOOKING AT MEGATRONICS. INTERNET BLOGS SHOW THIS IS VERY COMMON IN FORD SUV'S AND NOT A NEW PROBLEM BUT OVERLOOKED FOR SURE. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE08060 · Tire Valve Cracking
Opened Oct 14, 2008 · Closed Apr 9, 2009
Status: closed (inferred from source dates) · Tires:valve
ON OCTOBER 14, 2008, ODI OPENED PE08-060 TO INVESTIGATE ALLEGATIONS OF CRACKED AND LEAKING SNAP-IN TIRE VALVES IN MODEL YEAR (MY) 2007 VEHICLES MANUFACTURED BY FORD MOTOR COMPANY.THE VALVES WERE SUPPLIED TO FORD BY TOPSEAL AUTO-PARTS, A SUBSIDIARY OF THE SHANGHAI BAOLONG AUTOMOTIVE CORPORATION IN CHINA.VALVES MADE BY TOPSEAL FOR AFTERMARKET SALE WERE THE SUBJECT OF TWO RECENT SAFETY RECALLS BY TECH INTERNATIONAL (08T-018) AND DILL AIR CONTROLS (08T-028), THE LATTER OF WHICH WAS INVESTIGATED BY ODI IN PE08-036 AND EA08-022.THE DEFECT CONDITIONS ADDRESSED BY THE AFTERMARKET TIRE VALVE RECALLS BOTH INVOLVED INADEQUATE RESISTANCE TO OZONE CRACKING DUE TO ISSUES WITH THE SUPPLY OF ANTI-OZONANT CHEMICALS TO TOPSEAL FOR A PERIOD FROM JULY TO MID-NOVEMBER 2006.THE AFTERMARKET VALVES WERE COMPOUNDED WITH A BLEND OF EPDM AND NATURAL RUBBER, USING A RELATIVELY LOW PERCENTAGE OF EPDM (EPDM PROVIDES INHERENT RESISTANCE TO OZONE CRACKING).HENCE, THE NEED FOR ANTI-OZONANT CHEMICALS AND THE PROBLEMS WITH CRACKING WHEN THOSE CHEMICALS WERE MISSING OR OUT OF SPECIFICATION IN SOME LOTS OF VALVES.BOTH RECALL CAMPAIGNS INVOLVED INSPECTION PROGRAMS TO IDENTIFY AND REPLACE VALVES WITH VISIBLE SURFACE CRACKING.ALTHOUGH THE TOPSEAL VALVES SUPPLIED TO FORD ALSO APPEAR TO HAVE BEEN AFFECTED BY THE ANTI-OZONANT SUPPLY ISSUES IN MID TO LATE-2006, FORD INDICATED THAT ITS VALVES WERE MADE AT A DIFFERENT TOPSEAL PRODUCTION LINE AND WERE COMPOUNDED WITH A HIGHER PERCENTAGE OF EPDM RUBBER TO MEET MORE STRINGENT SPECIFICATIONS FROM FORD.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA PROVIDED BY FORD SHOWED THAT PROBLEMS WITH CRACKED TIRE VALVES WERE SIGNIFICANTLY HIGHER FOR MY 2007 VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007.FORD RESPONDED BY IMPLEMENTING CHANGES IN ITS MATERIAL SPECIFICATIONS FOR SNAP-IN RUBBER TIRE VALVES AND ALSO INCREASING THE QUALITY AND ACCEPTANCE STANDARDS FOR VALVES IMPORTED FOR USE IN ITS VEHICLES.WHILE THE COMPLAINT AND WARRANTY CLAIM RATES ARE ELEVATED FOR SUBJECT VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007, THE RATES OF LEAKING VALVES ARE WELL BELOW ONE PERCENT OF PRODUCTION FOR EACH OF THE PEAK MONTHS FOR ALL OF THE AFFECTED MODELS.A SUBSTANTIAL MAJORITY OF THE SUBJECT VEHICLES ARE EQUIPPED WITH TIRE PRESSURE MONITORING SYSTEMS (TPMS) WHICH WARN THE DRIVER WHEN ANY TIRE PRESSURES DROPS BELOW 25 PERCENT OF RECOMMENDED INFLATION PRESSURE. AS OUTLINED IN A LETTER TO ODI DATED APRIL 6, 2009, FORD HAS AGREED TO SEND LETTERS TO OWNERS OF CERTAIN MY 2007 AND 2008 FORD, LINCOLN AND MERCURY VEHICLES TO PROVIDE INFORMATION ABOUT THE CRACKING CONCERN. LETTERS WILL BE SENT TO OWNERS OF VEHICLES BUILT FROM NOVEMBER 2006 THROUGH MAY 2007.OWNERS CAN OPT FOR A FREE DEALER INSPECTION.VALVES EXHIBITING SURFACE CRACKS OR AIR LEAKAGE RELATED TO OZONE ATTACK WILL BE REPLACED BY FORD UNDER ITS NORMAL WARRANTY TERMS.FORD EXPECTS TO SEND THE LETTER BY APPROXIMATELY MID-MAY 2009. BASED ON THE USE OF TPMS IN THE MAJORITY OF SUBJECT VEHICLES AND THE RELATIVELY LOW RATES OF REPAIRS ASSOCIATED WITH LEAKING VALVES AND RESULTANT TIRE DAMAGE, ODI BELIEVES THAT THE ACTIONS FORD HAS AGREED TO TAKE WILL PROVIDE EFFECTIVE AND EXPEDITIOUS RESOLUTION FOR VEHICLES THAT WERE BUILT DURING THE PERIOD WHEN VALVES WITH INADEQUATE RESISTANCE TO OZONE CRACKING WERE MOST LIKELY TO HAVE BEEN USED IN VEHICLE PRODUCTION.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO
Illustration