RoadVitals

2007 Mercury Mariner Hybrid Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
31
Latest Sep 29, 2023
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
10
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2007 Mercury Mariner Hybrid, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine1026.3%
  • Brakes821.1%
  • Other / unspecified513.2%
  • Electrical410.5%
  • Powertrain (other)37.9%
  • Fuel system25.3%
  • Body & structure25.3%
  • Steering25.3%
  • Suspension12.6%
  • Interior & seats12.6%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

10
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. WHILE DRIVING APPROXIMATELY 60 MPH, THE ENGINE STALLED AND THE INSTRUMENT PANEL DISPLAYED A TRIANGLE WITH AN EXCLAMATION POINT. THE PANEL DISPLAYED THAT THE DRIVER NEEDED TO PULL OVER IMMEDIATELY. THE CONTACT PULLED OVER AND THE IGNITION HAD TO BE TURNED TO THE OFF POSITION FOR A FEW MINUTES IN ORDER FOR THE VEHICLE TO RESTART. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE MOTOR ELECTRONIC COOLANT PUMP FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THE VEHICLE WAS NO LONGER INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V526000 (ELECTRICAL SYSTEM). THE FAILURE MILEAGE WAS APPROXIMATELY 70,000.

NHTSA ID 10819598 · filed Jan 12, 2016

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. THE CONTACT STATED THAT WHILE WAITING AT A TRAFFIC LIGHT, THE ENGINE STALLED AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT RECEIVED A NOTIFICATION FOR NHTSA CAMPAIGN NUMBER 14V526000 (HYBRID PROPULSION SYSTEM). HOWEVER, THE PART NEEDED TO REMEDY THE VEHICLE WAS UNAVAILABLE. THE CONTACT BELIEVED THE FAILURE WAS RELATED TO THE RECALL. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 72,000.

NHTSA ID 10652694 · filed Nov 5, 2014
All 10 reports naming engine

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

8
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. WHILE DRIVING APPROXIMATELY 60 MPH, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD BEFORE THE VEHICLE STOPPED. THE ANTI-LOCK BRAKE SYSTEM AND THE BRAKE INDICATORS ILLUMINATED. THE CONTACT STATED THAT THE FAILURE OCCURRED FIVE OTHER TIMES INTERMITTENTLY. ONCE THE VEHICLE WAS TURNED OFF AND RESTARTED, THE FAILURE WOULD STOP. THE VEHICLE WAS TAKEN TO THE DEALER (ED WHITTMEIER FORD IN CHICO, CALIFORNIA) FOR DIAGNOSTIC TESTING, BUT THE FAILURE COULD NOT BE DUPLICATED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 84,000. *TT CONSUMER STATED BRAKES FAIL INTERMITTENTLY WHEN THEY FAIL THE ABS AND BRAKE LIGHT ON THE DASH ARE LIT UP. UPDATED 7/31/18*JB

NHTSA ID 11034106 · filed Oct 17, 2017

THE BRAKE SYSTEM'S HYDRAULIC CONTROL UNIT ("HCU"). ON SEVERAL OCCASIONS WHILE DRIVING, THE BRAKE PEDAL WILL TRAVEL TO THE FLOOR WHILE TRYING TO BRAKE RESULTING IN NO BRAKING ACTION (IE., VEHICLE NOT SLOWING). THIS MIGHT HAPPEN FOR ONE OR TWO PEDAL DEPRESSIONS BEFORE THERE IS ANY SLOWING OF THE VEHICLE. THIS PROBLEM HAS PLACED ME IN SITUATIONS WHERE I HAVE TO TAKE EVASIVE ACTION TO NOT HIT A VEHICLE IN FRONT OF ME, OR TRAVELING INTO A CONTROLLED (WITH STOP SIGNS) INTERSECTION. BELOW THERE IS A SPACE TO SPECIFY 'WHEN DID THIS HAPPEN.' I AM INPUTTING THE MOST RECENT DATE OF THIS PROBLEM, BUT IT HAS HAPPENED AT LEAST TEN TIMES BEFORE THIS.

NHTSA ID 10891719 · filed Jul 29, 2016
All 8 reports naming brakes

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

5
reports

From owner reports, verbatim

The contact owns a 2007 Mercury Mariner. The contact stated while driving 50 MPH, the engine started to overheat, after which the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway to let the engine cool down. After restarting the vehicle, the vehicle returned to normal functionality; however, the failure had since become a regular occurrence. The engine overheated warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 14V526000 (Hybrid Propulsion System) but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 247,000.

NHTSA ID 11547303 · filed Sep 29, 2023

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE STALLED AND THE CHECK FOUR BY FOUR, SERVICE BRAKES, AND PULL OVER SAFELY WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE CONTACT MENTIONED THAT WHEN THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE JERKED FORWARD AND THE TRACTION CONTROL WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT THE FAILURE WAS UNABLE TO BE DIAGNOSED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 65,000.

NHTSA ID 10750027 · filed Aug 20, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

4
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. THE CONTACT STATED THAT THE ALARM SYSTEM SOUNDED INDEPENDENTLY. THE VEHICLE WAS NOT DIAGNOSED AND THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.

NHTSA ID 10882656 · filed Jul 5, 2016

TL*THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V526000 (HYBRID PROPULSION SYSTEM) HOWEVER, THE PART NEEDED TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA ID 10682197 · filed Feb 9, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

3
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE STALLED AND THE CHECK FOUR BY FOUR, SERVICE BRAKES, AND PULL OVER SAFELY WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE CONTACT MENTIONED THAT WHEN THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE JERKED FORWARD AND THE TRACTION CONTROL WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT THE FAILURE WAS UNABLE TO BE DIAGNOSED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 65,000.

NHTSA ID 10750027 · filed Aug 20, 2015

I WAS DRIVING MY '07 MARINER HYBRID ON THE NJ TURNPIKE AT FREEWAY SPEEDS WHEN THE RED TRIANGLE & MESSAGE "STOP SAFELY NOW" APPEARED ON THE DASH. THE PROPULSION SYSTEM STOPPED AND I WAS ABLE TO NAVIGATE OFF TO THE SHOULDER AND BRING THE VEHICLE TO A SAFE STOP. HAVING AN IMMEDIATE LOSS OF POWER WHILE TRAVELING ON THE TURNPIKE WAS VERY SCARY AND I FELT UNSAFE KNOWING THAT I DIDN'T HAVE ANY OPTIONS BUT TO EXIT THE FREEWAY IMMEDIATELY. THIS COULD HAVE RESULTED IN AN ACCIDENT. AFTER LETTING THE SYSTEM SIT FOR ABOUT 20-MINUTES I STARTED THE VEHICLE AND RESUMED MY TRAVEL. SAME ERROR MESSAGE AND LOSS OF PROPULSION HAPPENED AGAIN, AND THIS TIME I NAVIGATED THE HYBRID TO A FORD DEALER IN NJ. IT'S VERY SCARY TO BE TRAVELING AT HIGHWAY SPEEDS AND THEN A SECOND LATER NOT HAVE ANY PROPULSION. THIS COULD BE HANDLED MUCH BETTER AND I RECOMMEND THE ENGINE CONTINUE TO PERFORM SO THAT I CAN SAFELY EXIT THE FREEWAY WITH MORE TIME. *JS

NHTSA ID 10608718 · filed Jul 7, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

2
reports

From owner reports, verbatim

I WAS DRIVING MY '07 MARINER HYBRID ON THE NJ TURNPIKE AT FREEWAY SPEEDS WHEN THE RED TRIANGLE & MESSAGE "STOP SAFELY NOW" APPEARED ON THE DASH. THE PROPULSION SYSTEM STOPPED AND I WAS ABLE TO NAVIGATE OFF TO THE SHOULDER AND BRING THE VEHICLE TO A SAFE STOP. HAVING AN IMMEDIATE LOSS OF POWER WHILE TRAVELING ON THE TURNPIKE WAS VERY SCARY AND I FELT UNSAFE KNOWING THAT I DIDN'T HAVE ANY OPTIONS BUT TO EXIT THE FREEWAY IMMEDIATELY. THIS COULD HAVE RESULTED IN AN ACCIDENT. AFTER LETTING THE SYSTEM SIT FOR ABOUT 20-MINUTES I STARTED THE VEHICLE AND RESUMED MY TRAVEL. SAME ERROR MESSAGE AND LOSS OF PROPULSION HAPPENED AGAIN, AND THIS TIME I NAVIGATED THE HYBRID TO A FORD DEALER IN NJ. IT'S VERY SCARY TO BE TRAVELING AT HIGHWAY SPEEDS AND THEN A SECOND LATER NOT HAVE ANY PROPULSION. THIS COULD BE HANDLED MUCH BETTER AND I RECOMMEND THE ENGINE CONTINUE TO PERFORM SO THAT I CAN SAFELY EXIT THE FREEWAY WITH MORE TIME. *JS

NHTSA ID 10608718 · filed Jul 7, 2014

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. *TR

NHTSA ID 10507344 · filed Apr 6, 2013

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

2
reports

From owner reports, verbatim

PASSENGER SIDE REAR INNER FENDER WELL RUSTED COMPLETELY THROUGH ABOVE THE REAR SHOCK CAUSING THE SHOCK TO POTENTIALLY BREAK THROUGH AND DROP THE WHOLE SUSPENSION AND CAUSE AND ACCIDENT OR FLIP OVER IF IT BROKE THROUGH DURING A TURN. THE REST OF THE VEHICLE HARDLY HAS ANY RUST ON IT. THE MARINER SHARES THE SAME INNER SHEET METAL AS THE FORD ESCAPE AND THERE HAVE BEEN MANY COMPLAINTS OF THIS HAPPENING TO ESCAPES. MY VEHICLE WAS STUDIED AT A FORD INVESTIGATION ABOUT 4 YEARS AGO FOR THIS PROBLEM. I WAS TOLD THEY WERE WORKING ON A SOLUTION AND NOTHING EVER HAPPENED. THE EMPLOYEE TOLD ME THAT THE UNDERCOATING THEY USED OF THESE YEARS OF ESCAPE/MARINERS WAS FAULTY AND BROKE DOWN PREMATURELY CAUSING THE INNER FENDER EXPOSED TO THE ELEMENTS. THIS IS ALSO HAPPENING ON THE DRIVER'S SIDE WHERE THE UNDERCOATING IS START TO BREAK DOWN. THIS IS NOT A CASE OF MISUSE BY THE OWNER BUT AN ACTUAL DESIGN FLAW AND A BIG SAFETY ISSUE AS THIS COULD CAUSE A LOT OF HARM. LUCKILY I HEARD THE LOUD KNOCKING FROM THE REAR END AND STOPPED DRIVING IT.

NHTSA ID 11004011 · filed Jul 10, 2017

TL* THE CONTACT OWNS A 2007 MERCURY MARINER HYBRID WITH 80,688 MILES. THE CONTACT OWNS A BRITAX BOULEVARD CT REAR FACING CHILD SEAT. THE CHILD SEAT WOULD NOT PROPERLY FIT IN THE VEHICLE UNLESS A NOODLE OR TOWEL WAS BEING USED. THE OWNERS MANUAL STATED THAT NO OBJECT COULD BE USED BETWEEN THE CHILD SEAT AND THE VEHICLE. THE MANUFACTURE WAS CONTACTED IN REGARDS TO THE FAILURE AND THEY INFORMED THE CONTACT THAT THE WHEELBASE OF THE VEHICLE WAS TOO SHORT FOR THE CHILD SEAT TO FIT PROPERLY. THE MANUFACTURER ALSO INFORMED THE CONTACT THAT THE SEAT WAS NOT TESTED TO DETERMINE IF IT WOULD FIT PROPERLY IN THE VEHICLE. THE CONTACT STATED THAT VIN LISTED ON THE DRIVER SIDE DOOR PANEL WAS DIFFERENT FROM THE VIN LISTED UNDER THE FRONT WINDSHIELD. THE VEHICLE WAS NEVER INVOLVED IN A CRASH.

NHTSA ID 10349651 · filed Aug 16, 2010

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

2
reports

From owner reports, verbatim

THE POWER STEERING WENT OUT IN MY MOTHER'S 2007 MARINER HYBRID WITH 72,000 MILES DUE TO FAILURE OF THE POWER STEERING CONTROL MODULE. AFTER SEARCHING ONLINE FORUMS, I FOUND THIS TO BE A RATHER COMMON ISSUE ON THE 05-07 MARINER AND ESCAPE HYBRIDS. THE REPAIR WILL COST JUST UNDER A THOUSAND DOLLARS ONCE YOU LOCATE THE PART. AFTER HAVING IT DIAGNOSED AT MY FORD DEALER, I CONTACTED FORD CUSTOMER CARE TO SEE IF THEY COULD RESOLVE THE ISSUE, AND THEY ACTED LIKE IT WAS SOMETHING THEY WERE UNAWARE OF EVEN THOUGH IT DOES NOT TAKE MUCH SEARCHING TO SEE IT'S A COMMON PROBLEM. ALSO IT'S A SAFETY ISSUE. THE SAME PART WAS RECALLED ON THE 08-11 ESCAPE AND MARINER HYBRIDS, AND THE RECALL SHOULD HAVE INCLUDED THE 05-07 AS WELL. FORUMS: HTTP://COMMUNITY.CARTALK.COM/DISCUSSION/2161203/2006-FORD-ESCAPE-HYBRID-POWER-STEERING-FAILURE HTTP://WWW.HYBRIDCARS.COM/FORUMS/SHOWTHREAD.PHP?100317-POWER-STEERING-FAILURE HTTP://WWW.CARCOMPLAINTS.COM/FORD/ESCAPE_HYBRID/2006/STEERING/STEERING.SHTML HTTP://WWW.GREENHYBRID.COM/FORUMS/F26/SERVICE-POWER-STEERING-MODULE-GONE-BAD-20550/INDEX2.HTML HTTP://FORUMS.EDMUNDS.COM/DISCUSSION/6206/FORD/ESCAPE-HYBRID/FORD-ESCAPE-HYBRID-SUSPENSION-STEERING-PROBLEMS. *TR

NHTSA ID 10714681 · filed May 5, 2015

MY WIFE WAS DRIVING APPROX. 50 MPH. ENTERED A CURVE AND THE POWER STEERING FAILED, MAKING IT VERY DIFFICULT FOR HER TO STEER SAFELY. *TR

NHTSA ID 10533386 · filed Aug 3, 2013

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

1
report

From owner reports, verbatim

PASSENGER SIDE REAR INNER FENDER WELL RUSTED COMPLETELY THROUGH ABOVE THE REAR SHOCK CAUSING THE SHOCK TO POTENTIALLY BREAK THROUGH AND DROP THE WHOLE SUSPENSION AND CAUSE AND ACCIDENT OR FLIP OVER IF IT BROKE THROUGH DURING A TURN. THE REST OF THE VEHICLE HARDLY HAS ANY RUST ON IT. THE MARINER SHARES THE SAME INNER SHEET METAL AS THE FORD ESCAPE AND THERE HAVE BEEN MANY COMPLAINTS OF THIS HAPPENING TO ESCAPES. MY VEHICLE WAS STUDIED AT A FORD INVESTIGATION ABOUT 4 YEARS AGO FOR THIS PROBLEM. I WAS TOLD THEY WERE WORKING ON A SOLUTION AND NOTHING EVER HAPPENED. THE EMPLOYEE TOLD ME THAT THE UNDERCOATING THEY USED OF THESE YEARS OF ESCAPE/MARINERS WAS FAULTY AND BROKE DOWN PREMATURELY CAUSING THE INNER FENDER EXPOSED TO THE ELEMENTS. THIS IS ALSO HAPPENING ON THE DRIVER'S SIDE WHERE THE UNDERCOATING IS START TO BREAK DOWN. THIS IS NOT A CASE OF MISUSE BY THE OWNER BUT AN ACTUAL DESIGN FLAW AND A BIG SAFETY ISSUE AS THIS COULD CAUSE A LOT OF HARM. LUCKILY I HEARD THE LOUD KNOCKING FROM THE REAR END AND STOPPED DRIVING IT.

NHTSA ID 11004011 · filed Jul 10, 2017

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

1
report

From owner reports, verbatim

DRIVING HOME LATE AT NIGHT, FROM BABYSITTING MY GRANDKIDS, WAS HIT IN THE REAR END BY A DRUNK DRIVER (ARRESTED BY THE STATE POLICE), GOING A HIGH RATE OF SPEED. THE DRIVERS SEATBACK BROKE FROM THE IMPACT AND I WAS UNABLE TO MAINTAIN CONTROL. SUV ROLLED 3 TIMES ACROSS THE EXPRESSWAY. SIDE CURTAIN AIRBAGS DEPLOYED. I SUFFERED POST CONCUSSIVE SYNDROME, WHIPLASH, GROIN INJURY, BOTH THUMBS (FROM TRYING TO HOLD MYSELF UP THRU THE ROLL) AND A CLOSED HEAD INJURY. BOTH CARS WERE TOTALED. I'M STILL IN TREATMENT. *TR

NHTSA ID 10327344 · filed Apr 25, 2010

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .