← New search

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
30,000 miles · Oct 6, 2009
Power TrainVehicle Speed ControlCrash

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. IMMEDIATELY AFTER THE VEHICLE WAS TURNED ON WITHOUT WARNING, IT ACCELERATED AND CRASHED INTO A STORE. THE POLICE GAVE HER A TICKET FOR CARELESS DRIVING. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. SHE WAS NOT INFORMED OF THE REPAIRS THAT WERE MADE TO THE VEHICLE. THE CONTACT HAS…

Read full complaint

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. IMMEDIATELY AFTER THE VEHICLE WAS TURNED ON WITHOUT WARNING, IT ACCELERATED AND CRASHED INTO A STORE. THE POLICE GAVE HER A TICKET FOR CARELESS DRIVING. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. SHE WAS NOT INFORMED OF THE REPAIRS THAT WERE MADE TO THE VEHICLE. THE CONTACT HAS HAD PROBLEMS WITH THE VEHICLE SINCE SHE PURCHASED IT. PRIOR TO THE FAILURE, WHENEVER SHE ENGAGED THE BRAKE PEDAL THE VEHICLE ACCELERATED WITHOUT WARNING; HOWEVER, THE DEALER STATED THAT THERE WAS NOTHING WRONG WITH THE VEHICLE. THE VEHICLE WAS DESTROYED PER THE INSURANCE COMPANY. THE CONTACT WAS ALWAYS CONCERNED ABOUT THE SAFETY RISK AND DEFECT IN THE VEHICLE . THE FAILURE AND CURRENT MILEAGES WERE 30000. UPDATED 11/04/09.*LJ THE CONSUMER STATED THE VEHICLE MADE A NOISE WHEN THE GEAR WAS PLACED IN REVERSE. UPDATED 11/05/09

NHTSA ODI #10286494

40,000 miles · Aug 27, 2009
Power Train

VEHICLE'S TRANSMISSION "CLUNKS" OR HARD SHIFTS, WHEN SLOWING DOWN AND COMING TO A STOP, OR AT LOW SPEEDS. SURGES AT STOP LIGHTS, OR WILL HESITATE WHEN THE GAS PEDAL IS PUSHED. THIS HAS BEEN AN ONGOING PROBLEM SINCE I PURCHASED THE VEHICLE IN 1997. I HAVE TAKEN IT BACK TO THE DEALER NUMEROUS TIMES, AND THEY TELL ME THAT 1. NOTHIN…

Read full complaint

VEHICLE'S TRANSMISSION "CLUNKS" OR HARD SHIFTS, WHEN SLOWING DOWN AND COMING TO A STOP, OR AT LOW SPEEDS. SURGES AT STOP LIGHTS, OR WILL HESITATE WHEN THE GAS PEDAL IS PUSHED. THIS HAS BEEN AN ONGOING PROBLEM SINCE I PURCHASED THE VEHICLE IN 1997. I HAVE TAKEN IT BACK TO THE DEALER NUMEROUS TIMES, AND THEY TELL ME THAT 1. NOTHING IS WRONG WITH THE TRANSMISSION OR 2. THEY HAVE DOWNLOADED A NEW PROGRAM FOR THE COMPUTER. I KNOW THERE IS SOMETHING WRONG, BUT NO ONE WILL FIX THIS. NOW IT'S 4000 MILES OVER WARRANTY, AND THE PROBLEM IS GETTING WORSE. SOONER OR LATER THIS WILL CAUSE AN ACCIDENT. *TR

NHTSA ODI #10281919

19,000 miles · May 21, 2009
Power Train

TRANSMISSION HARD DOWNSHIFT WHEN STOPPING OR IN SLOW TRAFFIC. VEHICLE SURGES ALMOST "LEAPS" FORWARD WHILE AT A STOP WHEN FOOT TAKEN OFF OF BRAKE PEDAL. ALMOST HIT VEHICLE IN FRONT. ANOTHER MOUNTAINEER OWNER REFERS TO IT AS A "BUMP STOP". THIS OCCURS DAILY ALTHOUGH NOT EVERY TIME THE VEHICLE STOPS OR SLOWS. THE IS VERY UNNERVIN…

Read full complaint

TRANSMISSION HARD DOWNSHIFT WHEN STOPPING OR IN SLOW TRAFFIC. VEHICLE SURGES ALMOST "LEAPS" FORWARD WHILE AT A STOP WHEN FOOT TAKEN OFF OF BRAKE PEDAL. ALMOST HIT VEHICLE IN FRONT. ANOTHER MOUNTAINEER OWNER REFERS TO IT AS A "BUMP STOP". THIS OCCURS DAILY ALTHOUGH NOT EVERY TIME THE VEHICLE STOPS OR SLOWS. THE IS VERY UNNERVING IN STOP & GO TRAFFIC AS YOU HAVE TO KEEP YOUR FOOT ON THE BRAKE AND LEAVE A LARGE SPACE BETWEEN THE VEHICLE IN FRONT TO AVOID REAR ENDING THE OTHER VEHICLE. TOOK VEHICLE TO AAMCO AS OUR FORD DEALERSHIP IS DEPLORABLE, AAMCO COULD NOT DETECT ANY DEFECTS. VEHICLE HAS 19,000 MILES AND IS STILL UNDER FACTORY WARRANTY. *TR

NHTSA ODI #10269638

4,403 miles · Jan 2, 2009
Seat Belts

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT STATED THAT VARIOUS SEAT BELTS WOULD NOT RETRACT PROPERLY. SHE TOOK THE VEHICLE TO THE DEALER ON SEVERAL OCCASIONS AND THEY REPLACED THE FIVE RETRACTORS FOR DIFFERENT SEATS IN THE VEHICLE. THE REAR DRIVER'S SIDE SEAT BELT WAS REPLACED AGAIN SEVERAL MONTHS AFTER THE O…

Read full complaint

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT STATED THAT VARIOUS SEAT BELTS WOULD NOT RETRACT PROPERLY. SHE TOOK THE VEHICLE TO THE DEALER ON SEVERAL OCCASIONS AND THEY REPLACED THE FIVE RETRACTORS FOR DIFFERENT SEATS IN THE VEHICLE. THE REAR DRIVER'S SIDE SEAT BELT WAS REPLACED AGAIN SEVERAL MONTHS AFTER THE ORIGINAL REPAIR. CURRENTLY, THE CAUSE OF THE FAILURE WAS UNKNOWN. THE FAILURE MILEAGE WAS 4,403 AND CURRENT MILEAGE WAS 27,900. UPDATED 02-23-09 *BF UPDATED 02/24/09. *JB

NHTSA ODI #10253563

14 miles · Sep 23, 2008
Service Brakes, Hydraulic

WHEN MAKING A SUDDEN STOP, THE BRAKE PEDAL GOES TO THE FLOOR WHILE MAINTAINING PRESSURE ON THE BRAKE PEDAL. WHEN HOLDING VEHICLE ON A STEEP INCLINE (STOPPED), THE PEDAL GOES TO THE FLOOR. HAD IT BACK TO FORD DEALERS AND WAS TOLD THIS IS A NORMAL CONDITION FOR EXPLORERS AND MOUNTAINEERS EVEN THOUGH SERVICE MANAGERS AND THE MECHAN…

Read full complaint

WHEN MAKING A SUDDEN STOP, THE BRAKE PEDAL GOES TO THE FLOOR WHILE MAINTAINING PRESSURE ON THE BRAKE PEDAL. WHEN HOLDING VEHICLE ON A STEEP INCLINE (STOPPED), THE PEDAL GOES TO THE FLOOR. HAD IT BACK TO FORD DEALERS AND WAS TOLD THIS IS A NORMAL CONDITION FOR EXPLORERS AND MOUNTAINEERS EVEN THOUGH SERVICE MANAGERS AND THE MECHANICS HAVE TOLD ME THERE WAS A PROBLEM WHEN THEY INITIALLY CHECKED THE BRAKES. I HAVE STARTED THE PAPERWORK FOR THE NYS LEMON LAW PROCEDURE. I HAVE PUT THE FIRST COMPLAINT OF THIS IN THE APPROX. ACCIDENT DATE BOX. THIS HAPPENS WHENEVER YOU USE THE VEHICLE. *TR

NHTSA ODI #10243206

19,300 miles · Feb 20, 2008
Suspension

FRONT BEARINGS THAT ATTACHES TO THE AWD FAILED. IT WILL BE REPLACED AS SOON AS PARTS ARE AVAILABLE. *TR

NHTSA ODI #10218698

Mileage unknown · Jan 30, 2008
Structure

WHILE DRIVING ON FREEWAY OVER A SMALL CRACK, DASHBOARD REPORTED THAT REAR DRIVER SIDE DOOR BECAME LOOSE, HAD TO PULL OVER AND RE-CLOSE THE DOOR. I DRIVE THIS ROUTE/LANE EVERYDAY TO WORK, IT HASN' T HAPPEN FOR SIX MONTHS (THAT'S WHEN I BOUGHT MY MOUNTAINEER). DON'T KNOW IF THIS IS A RANDOM EVENT OR DUE TO SOME DESIGN PROBLEM. IT …

Read full complaint

WHILE DRIVING ON FREEWAY OVER A SMALL CRACK, DASHBOARD REPORTED THAT REAR DRIVER SIDE DOOR BECAME LOOSE, HAD TO PULL OVER AND RE-CLOSE THE DOOR. I DRIVE THIS ROUTE/LANE EVERYDAY TO WORK, IT HASN' T HAPPEN FOR SIX MONTHS (THAT'S WHEN I BOUGHT MY MOUNTAINEER). DON'T KNOW IF THIS IS A RANDOM EVENT OR DUE TO SOME DESIGN PROBLEM. IT CAN BE SCARY, WHAT IF THE DOOR BECAME WIDE OPEN WHILE DRIVING! REMEMBER THE DOOR IS CLOSED BEFORE IT BECAME LOOSE. *TR

NHTSA ODI #10216464

7,800 miles · Nov 9, 2007
Power Train

TRANSMISSION JUKES AHEAD WHILE TRAVELING ON LONG DISTANCES AND SHORT. WHEN I LET OFF OF BRAKE PEDAL IT LOUNGES FORWARD. IT HAS GOTTEN WORSE IN 2MONTHS TIME. I BROUGHT IT TO THE DEALER WHICH IN TURN TOLD ME I MUST WAIT FOR A RECALL PER FORD MOTOR CO. I FEEL THIS IS NONSENSE BEING THIS MATTER IS GETTING WORSE!!! WHAT, I HAVE…

Read full complaint

TRANSMISSION JUKES AHEAD WHILE TRAVELING ON LONG DISTANCES AND SHORT. WHEN I LET OFF OF BRAKE PEDAL IT LOUNGES FORWARD. IT HAS GOTTEN WORSE IN 2MONTHS TIME. I BROUGHT IT TO THE DEALER WHICH IN TURN TOLD ME I MUST WAIT FOR A RECALL PER FORD MOTOR CO. I FEEL THIS IS NONSENSE BEING THIS MATTER IS GETTING WORSE!!! WHAT, I HAVE TO WAIT FOR MY VEHICLE TO DIE BEFORE I CAN GET SOMETHING DONE ABOUT IT?!!! BULLCRAP! THANKS TERESA *TR

NHTSA ODI #10208534

9,000 miles · Oct 22, 2007
Power Train

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE TRANSMISSION MADE NOISES WHEN DOWNSHIFTING AT 15 MPH OR WHEN STARTING THE VEHICLE. THE DEALER REPROGRAMMED THE VEHICLE. THE CONTACT TOOK THE VEHICLE HOME, BUT THE FAILURE WORSENED. THE TRANSMISSION CONTINUED TO SLIP. SHE RETURNED TO THE DEALER AND LEFT THE VEHICLE THERE FO…

Read full complaint

TL*THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE TRANSMISSION MADE NOISES WHEN DOWNSHIFTING AT 15 MPH OR WHEN STARTING THE VEHICLE. THE DEALER REPROGRAMMED THE VEHICLE. THE CONTACT TOOK THE VEHICLE HOME, BUT THE FAILURE WORSENED. THE TRANSMISSION CONTINUED TO SLIP. SHE RETURNED TO THE DEALER AND LEFT THE VEHICLE THERE FOR A FEW DAYS. A NEW COMPUTER PART WAS PLACED IN THE VEHICLE, BUT THE FAILURE STILL PERSISTS. THERE IS NO REPAIR FOR THE FAILURE. THE FAILURE MILEAGE WAS 9,000 AND CURRENT MILEAGE WAS 9,500.

NHTSA ODI #10206491

Mileage unknown · May 17, 2007
Visibility

I WAS WASHING THE SUV IN MAY 2007, AND AFTER WASHING THE WINDSHIELD OFF I WENT TO THE BACK OF THE CAR TO WASH OFF THE BACK WHEN I CAME AROUND TO THE FRONT AND THE FRONT WINDSHIELD WAS CRACKED. THERE WAS NO EVIDENCE OF A ROCK, OR DENT HOLE, THE CAR WAS IN THE DRIVEWAY. I WAS STANDING THERE AND WASHING IT AND IT JUST SOMEHOW …

Read full complaint

I WAS WASHING THE SUV IN MAY 2007, AND AFTER WASHING THE WINDSHIELD OFF I WENT TO THE BACK OF THE CAR TO WASH OFF THE BACK WHEN I CAME AROUND TO THE FRONT AND THE FRONT WINDSHIELD WAS CRACKED. THERE WAS NO EVIDENCE OF A ROCK, OR DENT HOLE, THE CAR WAS IN THE DRIVEWAY. I WAS STANDING THERE AND WASHING IT AND IT JUST SOMEHOW GOT CRACKED ALONG THE BOTTOM OF THE WINDSHIELD. *AK

NHTSA ODI #10191085

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