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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 →

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.

3 crash reports0 fire reports1 injury reports

What owners actually said

81 reports
35,000 miles · Apr 29, 2013
Seats

I WAS DRIVING ON THE EXPRESSWAY AT 55 MPH. I HIT A SLIGHT BUMP IN THE ROAD. THE DOME LIGHTS CAME ON AND THE SEAT MOVED BACKWARDS, AS IF I HAD JUST REMOVED THE KEY FROM THE IGNITION. I THANKFULLY THOUGHT QUICKLY AND PUSHED ON THE KEY, WHICH MADE THE SEAT MOVE BACK INTO POSITION. IT WAS JUST A MIRACLE THAT THE FIRST THING I THOUGH…

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I WAS DRIVING ON THE EXPRESSWAY AT 55 MPH. I HIT A SLIGHT BUMP IN THE ROAD. THE DOME LIGHTS CAME ON AND THE SEAT MOVED BACKWARDS, AS IF I HAD JUST REMOVED THE KEY FROM THE IGNITION. I THANKFULLY THOUGHT QUICKLY AND PUSHED ON THE KEY, WHICH MADE THE SEAT MOVE BACK INTO POSITION. IT WAS JUST A MIRACLE THAT THE FIRST THING I THOUGHT TO DO TO FIX THE PROBLEM ACTUALLY DID. THAT COULD HAVE BEEN A VERY SERIOUS INCIDENT, AS MY FEET WERE TOO FAR FROM THE BRAKE PEDAL AND I COULD HARDLY REACH IT. I WOULD NOT HAVE BEEN ABLE TO STOP IF I NEEDED TO STOP QUICKLY. THAT WAS THE FIRST OF MANY OCCURRENCES. IT HAS HAPPENED TO ME TURNING CORNERS, DRIVING ON BUMPY ROADS, HAVING TO BRAKE SUDDENLY (I JUST BARELY MISSED HITTING THE CAR IN FRONT OF ME), AND EVEN PULLING IN AND OUT OF MY DRIVEWAY. *TR

NHTSA ODI #10509976

100,000 miles · Apr 12, 2013
Seats

TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE FRONT DRIVER'S SIDE SEAT MOVED BACK INADVERTENTLY. THE MANUFACTURER WAS NOT MADE AWARE OF FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. *TR

NHTSA ODI #10506065

90,000 miles · Mar 19, 2013
Power Train

WHEN TRAVELING IN "OVERDRIVE", UPON ACCELERATION, THE TRANSMISSION WILL BUCK, VIOLENTLY DEPENDING HOW HARD YOU PRESS ON THE PEDAL. THE ONLY TIME THIS WILL NOT HAPPEN IS IF YOU CONTROL THE VEHICLE SPEED WITH THE CRUISE CONTROL. I HAVEN,T HAD IT GO TO THE DEALER AS OF YET FOR INSPECTION, SO THERE ARE NO CONCLUSIONS AS OF YET AS TO…

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WHEN TRAVELING IN "OVERDRIVE", UPON ACCELERATION, THE TRANSMISSION WILL BUCK, VIOLENTLY DEPENDING HOW HARD YOU PRESS ON THE PEDAL. THE ONLY TIME THIS WILL NOT HAPPEN IS IF YOU CONTROL THE VEHICLE SPEED WITH THE CRUISE CONTROL. I HAVEN,T HAD IT GO TO THE DEALER AS OF YET FOR INSPECTION, SO THERE ARE NO CONCLUSIONS AS OF YET AS TO WHAT MAY BE WRONG. *TR

NHTSA ODI #10503575

56,114 miles · Dec 28, 2012
Wheels

DISCOUNT TIRE COMPANY INFORMED ME THAT THEY HAD A TECHNICAL BULLETIN - WHEEL ADVISORY THAT SAID; "DO SERVICE THE MERCURY MOUNTAINEER 18" OE WHEELS (2005 AND NEWER) THEY FOUND IN TESTING THAT THE FRONT BEAD HUMP HAS A RIDGE ON THE BALCONY LEDGE WHICH CAN CAUSE BEAD DAMAGE WHEN MOUNTING. TESTS WERE CONDUCTED WHERE SEVERAL TYPES …

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DISCOUNT TIRE COMPANY INFORMED ME THAT THEY HAD A TECHNICAL BULLETIN - WHEEL ADVISORY THAT SAID; "DO SERVICE THE MERCURY MOUNTAINEER 18" OE WHEELS (2005 AND NEWER) THEY FOUND IN TESTING THAT THE FRONT BEAD HUMP HAS A RIDGE ON THE BALCONY LEDGE WHICH CAN CAUSE BEAD DAMAGE WHEN MOUNTING. TESTS WERE CONDUCTED WHERE SEVERAL TYPES OF TIRES WERE MOUNTED AND INFLATED ON THE OE WHEELS. THE ONLY TIRE THEY WERE ABLE TO SEAT AT (50PSI) WAS THE ORIGINAL EQUIPMENT MICHELIN. AFTER MOUNTING AND FOUND THAT IT HAD A DAMAGED BEAD. DURING THE TEST, THEY WERE NOT ABLE TO GET A TIRE TO SEAT WITHOUT DAMAGING THE BEAD. THE RECOMMENDATION: DO NOT SERVICE THESE WHEELS. CENTRAL FLORIDA LINCOLN DEALER (FORMERLY CENTRAL FLORIDA LINCOLN MERCURY) DID NOT HAVE ANY SERVICE BULLETIN ON THIS PROBLEM. THE ONLY WAY I COULD GET NEW TIRES FOR MY MERCURY MOUNTAINEER WAS TO BUY NEW 17" WHEELS AND HAVE NEW TIRES MOUNTED ON THEM. *TR

NHTSA ODI #10490407

52,000 miles · Dec 17, 2012
Electrical SystemSeats

TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING APPROXIMATELY 40 MPH, THE FRONT DRIVER'S SIDE SEAT MOVED BACKWARD AND FORWARD INDEPENDENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN WAS ABLE TO DUPLICATE THE FAILURE AND RECOMMENDED REPLACING THE IGNITION. THE TECHNICIAN ADVISED TH…

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TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING APPROXIMATELY 40 MPH, THE FRONT DRIVER'S SIDE SEAT MOVED BACKWARD AND FORWARD INDEPENDENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN WAS ABLE TO DUPLICATE THE FAILURE AND RECOMMENDED REPLACING THE IGNITION. THE TECHNICIAN ADVISED THAT IF THE FAILURE CONTINUED, THEN THE SEATING HARNESS WOULD HAVE TO BE REPLACED. THE CONTACT HAD THE TECHNICIAN DISCONNECT THE SEAT. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 52,000.

NHTSA ODI #10489013

97,700 miles · Nov 25, 2012
Vehicle Speed Control

WHEN BRAKING THE VEHICLE ACCELERATES, WHEN SLOWING DOWN TO A STOP SIGN OR A RED LIGHT AND IT HAPPENS WHEN PARKING FORWARD OR REVERSE. I RECENTLY PURCHASED THE VEHICLE 8/2012. I AM VERY DISPOINTED BECAUSE I REALLY LIKE THIS SUV. I HOPE THE DEALER WILL FIX THIS SPEED CONTROL PROBLEM FREE OF CHARGE BECAUSE THIS SITUATION COULD GET…

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WHEN BRAKING THE VEHICLE ACCELERATES, WHEN SLOWING DOWN TO A STOP SIGN OR A RED LIGHT AND IT HAPPENS WHEN PARKING FORWARD OR REVERSE. I RECENTLY PURCHASED THE VEHICLE 8/2012. I AM VERY DISPOINTED BECAUSE I REALLY LIKE THIS SUV. I HOPE THE DEALER WILL FIX THIS SPEED CONTROL PROBLEM FREE OF CHARGE BECAUSE THIS SITUATION COULD GET DANGEROUS. *TR

NHTSA ODI #10485935

Mileage unknown · Sep 4, 2012
Power TrainUnknown Or Other

WE BOUGHT THE CAR 2 YEARS AGO AND A FEW MONTHS AFTER WE HAVE PURCHASED IT, IT STARTED TO ACT UP. WHEN WE PULL THE SHIFT GEAR TO REVERSED, IT JERKS REAL BAD AS IF WE WERE REAR ENDED. A FEW TIMES, THE SHIFT GEAR WOULD BE STUCK. WE COULD NOT PULL THE SHIFTER DOWN TO REVERSE FROM PARK. IT NORMALLY TAKES US AN HOUR SO TO DO IT BUT TO…

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WE BOUGHT THE CAR 2 YEARS AGO AND A FEW MONTHS AFTER WE HAVE PURCHASED IT, IT STARTED TO ACT UP. WHEN WE PULL THE SHIFT GEAR TO REVERSED, IT JERKS REAL BAD AS IF WE WERE REAR ENDED. A FEW TIMES, THE SHIFT GEAR WOULD BE STUCK. WE COULD NOT PULL THE SHIFTER DOWN TO REVERSE FROM PARK. IT NORMALLY TAKES US AN HOUR SO TO DO IT BUT TONIGHT, IT WAS WORST. WE WERE STUCK ON PARK...FINALLY AFTER AN HOUR, WE WERE ABLE TO PULL IT FROM PARK AND ONTO REVERSE FROM THE GARAGE. ONLY THIS TIME REVERSE WAS PARK, NEUTRAL WAS REVERSE, DRIVE WAS NEUTRAL AND 3 WAS DRIVE. IT WAS SO FRUSTRATING....AND TO TOP THAT OFF, MY HUSBAND AND I BOTH GOT INTO A HEATED ARGUMENT OVER THIS STUPID CAR!! WE STILL CANNOT GET IT FIXED BECAUSE WE DON'T HAVE THE MONEY!!! *TR

NHTSA ODI #10473683

60,000 miles · Aug 28, 2012
EngineSteering

I WAS DRIVING ON THE HIGHWAY AND NOTICED THAT MY STEERING WAS NOT WORKING WELL. MY ENGINE WAS OVERHEATING AND EVENTUALLY SHUT OFF. I HAD TO PULL OVER ON THE SIDE OF THE HIGHWAY. WHEN I GOT SOMEONE TO LOOK AT THE CAR, WE REALIZED IT HAD NO COOLANT. WE FILLED UP THE COOLANT AND EVERYTHING SEEMED FINE. ABOUT A MONTH LATER I NOTICED…

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I WAS DRIVING ON THE HIGHWAY AND NOTICED THAT MY STEERING WAS NOT WORKING WELL. MY ENGINE WAS OVERHEATING AND EVENTUALLY SHUT OFF. I HAD TO PULL OVER ON THE SIDE OF THE HIGHWAY. WHEN I GOT SOMEONE TO LOOK AT THE CAR, WE REALIZED IT HAD NO COOLANT. WE FILLED UP THE COOLANT AND EVERYTHING SEEMED FINE. ABOUT A MONTH LATER I NOTICED THAT THE ENGINE WAS MAKING THE SAME NOISE AS IT HAD BEFORE AS IF IT WERE WORKING TOO HARD. I CHECKED THE COOLANT AND IT WAS COMPLETELY EMPTY AGAIN. I HAVE A FRIEND WHO ALSO OWNS THE MM AND HAD THE SAME PROBLEM. THE REPAIR AND COST OF A NEW RADIATOR WAS 1500. FORD/MERUCY NEEDS TO DO A RECALL ON THIS PRODUCT AND GET IT TAKEN CARE OF. I JUST PURCHASED THIS CAR IN JANUARY AND SHOULD NOT HAVE TO BE SPENDING SO MUCH MONEY ON A REPAIR. *TR

NHTSA ODI #10472722

67,000 miles · Apr 8, 2012
Engine And Engine CoolingPower Train

MY TRANSMISSION JERKS AS I ACCELERATE DURING TRAVEL. TO ME IT'S GETTING WORSE. I HAVE HAD IT LOOKED AT. NO CODES ARE SHOWING THAT I HAVE A PROBLEM. BUT CLEARLY SOMETHING IS WRONG. I HAVE DONE THIS SEVERAL TIMES, STILL NO CODES TO INDICATE ANYTHING IS WRONG WITH MY VEHICLE. ALSO MY GAS SENSORS ARE SHOT. ENGINE LIGHT GOES IN AND O…

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MY TRANSMISSION JERKS AS I ACCELERATE DURING TRAVEL. TO ME IT'S GETTING WORSE. I HAVE HAD IT LOOKED AT. NO CODES ARE SHOWING THAT I HAVE A PROBLEM. BUT CLEARLY SOMETHING IS WRONG. I HAVE DONE THIS SEVERAL TIMES, STILL NO CODES TO INDICATE ANYTHING IS WRONG WITH MY VEHICLE. ALSO MY GAS SENSORS ARE SHOT. ENGINE LIGHT GOES IN AND OUT. MY VEHICLE HAS STOPPED IN THE MIDDLE OF ATLANTA TRAFFIC, CAUSING PROBLEMS OF OTHER VEHICLES TRAVELING IN THE DIRECTION THAT I AM WITH CHILDREN. I ALSO HAVE THE PROBLEM WITH BACKING MY VEHICLE, IT JERKS BEFORE BACKING. *TR

NHTSA ODI #10454453

42,356 miles · Feb 15, 2012
Seats

WHILE DRIVING ON A FEW DIFFERENT OCCASIONS NOW, MY DRIVER'S SEAT WHICH IS POWER OPERATED MOVED BACKWARDS ON ITS OWN AND THE INTERIOR LIGHTS CAME ON. I HAD TO READJUST THE SEAT MYSELF AND THEN THE INTERIOR LIGHTS WENT OUT ONCE THE SEAT WAS READJUSTED. THE FIRST TIME IT HAPPENED I THOUGHT IT WAS JUST A FLUKE AS I HAVE ONLY OWNED…

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WHILE DRIVING ON A FEW DIFFERENT OCCASIONS NOW, MY DRIVER'S SEAT WHICH IS POWER OPERATED MOVED BACKWARDS ON ITS OWN AND THE INTERIOR LIGHTS CAME ON. I HAD TO READJUST THE SEAT MYSELF AND THEN THE INTERIOR LIGHTS WENT OUT ONCE THE SEAT WAS READJUSTED. THE FIRST TIME IT HAPPENED I THOUGHT IT WAS JUST A FLUKE AS I HAVE ONLY OWNED THIS VEHICLE A LITTLE OVER A MONTH. IT HAS HAPPENED MAYBE 4-5 TIMES NOW. TODAY I WAS GOING AROUND A CURVE IN THE ROAD AND IT HAPPENED. IT REALLY COULD HAVE CAUSED AN ACCIDENT BECAUSE IT WAS ON THE INTERSTATE AND I WAS TRAVELING 55-60 MPH. *TR

NHTSA ODI #10448098

Official recalls

0

No 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

1

PE08060 · 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