There are 9 owner-reported engine complaints for the 2008 Mercury Marinerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
FRONT MAIN SEAL IS LEAKING VEHICAL IS DRIPPING OIL ON MUFFLER WHEN SITTING STILL
TL* THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING 45 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT WAS UNABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 125,000.
TL* THE CONTACT OWNS A 2008 MERCURY MARINER. THE CONTACT STATED THE VEHICLE INTERMITTENTLY STALLED WHILE DRIVING VARIOUS SPEEDS AND AFTER STARTING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER HAD NOT BEEN MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000. UPDATED 06/17/14*LJ UPDATED 8/21/2017*CN
I WAS ATTEMPTING TO EXIT A PARKING LOT AND VEHICLE STALLED AND WOULD NOT ACCELERATE. I COASTED BACK INTO A PARKING SPACE, SHUT OFF ENGINE AND MADE A FEW MORE ATTEMPTS WITH THE SAME RESULT EACH TIME. I SHUT VEHICLE OFF AND WAITED FOR ROUGHLY TWENTY MINUTES AND TRIED AGAIN. VEHICLE DID ENGAGE AND I WAS ABLE TO EXIT PARKING STRUCTURE HOWEVER, VEHICLE STALLED IN THE MIDDLE OF THE ROAD. FORTUNATELY, THERE WAS LIGHT TRAFFIC AND I WAS ABLE TO COAST BACK INTO PARKING LOT. PROBLEM WAS SUBSEQUENTLY DIAGNOSED AS BAD BINDING THROTTLE CABLE. THE CABLE WAS REPLACED AT MY EXPENSE. FEBRUARY 24 AND 25 OF 2014, VEHICLE STALLED WHILE IN TRAFFIC, LOST POWER AND AGAIN PEDAL STUCK AND VEHICLE WOULD NOT ENGAGE. SUBSEQUENT DIAGNOSIS IS REPLACEMENT OF THROTTLE BODY AT MY EXPENSE. THIS IS EXTREMELY EXPENSIVE AND POTENTIALLY DANGEROUS.
2008 MARINER JUST SERVICED FOR OIL CHANGE, SAFETY, AND NEW AIR FILTER. NOT MORE THAN TWELVE MILES, VEHICLE LOST POWER ON FREEWAY. WAS ABLE TO COAST OFF HIGHWAY ONTO OFF RAMP. VEHICLE WOULD START, BUT FAILED TO STAY RUNNING. VEHICLE HAS GAS AND TOWED TO SOUTH POINTE LINCOLN MERCURY. *TR
2008 MERCURY MARINER WITH 40,000 MILES ON IT HAS TRANSMISSION LEAK CAUSED BY A FAULTY COOLING CONDENSER. I HAVE HEARD OF HUNDREDS IF NOT THOUSANDS OF COMPLAINTS SUCH AS THIS ONE IN THE MARINER AND THE SISTER CAR FORD ESCAPE. THIS REPAIR IS AROUND 800 DOLLARS AND APPARENTLY THERE IS NO SIGN OF A RECALL. I BELIEVE THE PART WAS MODIFIED IN THE 2009 MODELS BUT THIS DOES LITTLE FOR ME AND THOSE LIKE ME. NEW PART CAN EASILY BE DEFECTIVE DOWN THE ROAD AS WELL. NOT REPAIRED YET BUT IF DRIVEN CONTINUALLY CAN ME DANGEROUS TO CAR NOT TO MENTION PERSONS IN VEHICLE. *TR
THERE IS AN OPEN SPACE IN THE FRONT GRILL MEASURING 30-1/2' LONG X 4' HIGH X 2-1/2 ' 3-1/2' DEEP THAT IS 15' FROM THE ROAD, WHICH HAS NO GUARD OR SHIELD TO PROTECT IT FROM SOMETHING LIKE ROCKS FLYING OFF OF THE ROAD. THERE IS ALSO ANOTHER GAP ABOVE THIS WHERE DEBRIS CAN HIT THE A/C CONDENSER THAT IS 28' LONG X 1-1/2' HIGH. DEALER CLAIMED A ROCK FLEW OFF THE ROAD AN PUT A HOLE IN THE A/C CONDENSER. THE VEHICLE ONLY HAD 3,000 MILES AND WAS A COUPLE MONTHS OLD. DEALER WOULD NOT REPLACE OR REPAIR CONDENSER. CLAIMED IT WAS NOT A COVERED UNDER WARRANTY. *TR
TL*THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING APPROXIMATELY 10 MPH ON NORMAL ROAD CONDITIONS AND PROCEEDING TO A STOP, THE ENGINE STALLED UNEXPECTEDLY. THE VEHICLE RESTARTED AFTER SEVERAL ATTEMPTS WITH A LOUD NOISE COMING FROM THE TRANSMISSION. THERE WERE NO WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. IN ADDITION, THERE WAS EXCESSIVE OIL LEAKAGE FROM THE GASKET. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON FOUR OCCASIONS, BUT THEY WERE UNABLE TO DUPLICATE THE FAILURES. THE VEHICLE HAS NOT BEEN REPAIRED. THE CONTACT WAS CONCERNED OF THE SAFETY RISK INVOLVED. THE FAILURE MILEAGE WAS 1,094 AND CURRENT MILEAGE WAS 7,000. UPDATED 12/1/08 *CN UPDATED 12/05/08.*JB
TL*THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING APPROXIMATELY 10 MPH ON NORMAL ROAD CONDITIONS, THE VEHICLE CAME TO A COMPLETE STOP AND STALLED WHEN ATTEMPTING TO ACCELERATE. THE VEHICLE RESTARTED AFTER SEVERAL ATTEMPTS AND THE TRANSMISSION MADE A LOUD NOISE. THERE WERE NO WARNING INDICATORS ILLUMINATING ON THE INSTRUMENT PANEL. IN ADDITION, THERE WAS AN EXCESSIVE OIL LEAKAGE COMING FROM THE GASKET. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON FOUR OCCASIONS, BUT THEY COULD NOT DUPLICATE THE FAILURE. THE VEHICLE HAS NOT BEEN REPAIRED. THE CONTACT WAS CONCERNED OF THE SAFETY RISK INVOLVED. THE FAILURE MILEAGE WAS 1,094 AND CURRENT MILEAGE WAS 7,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026