IllustrationVEHICLE NEEDED A RADIATOR. THE DEALERSHIP REPLACED THE RADIATOR AND CONTINUES TO LEAK ANTIFREEZE CAUSING VEHICLE TO OVER HEAT. *TR
2006 Mercury Mountaineer
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2006 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
140–25K
1825–50K
3150–75K
1475–100K
13100–150K
4150K+
94 reports with mileage · 23 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.
- Engine And Engine Cooling. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports2 fire reports6 injury reports
What owners actually said
117 reportsTL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE RADIATOR WAS CRACKED AND HAD TO BE REPLACED TWICE. THE DEALER REPLACED THE RADIATOR SIX YEARS AGO AND ALSO NEEDED REPLACING RECENTLY. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 95,000. UPDATED 9/12/12 *CN
TRUCK COOLING SYSTEM DIED WHICH CAUSED THE TRUCK TO CATCH FIRE WHILE DRIVING DOWN THE HIGHWAY, SMOKE PORING OUT, STATE TROOPERS HAD TO ASSIST US. MY DAUGHTER WAS SCARED TO DEATH AND NOW REFUSES TO GET BACK IN THE TRUCK EVEN THOUGH WE GOT A NEW ENGINE. TO MAKE MATTERS WORSE WE SPENT 3000 ON AND ENGINE...500 ON COOLING SYSTEM AND …
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TRUCK COOLING SYSTEM DIED WHICH CAUSED THE TRUCK TO CATCH FIRE WHILE DRIVING DOWN THE HIGHWAY, SMOKE PORING OUT, STATE TROOPERS HAD TO ASSIST US. MY DAUGHTER WAS SCARED TO DEATH AND NOW REFUSES TO GET BACK IN THE TRUCK EVEN THOUGH WE GOT A NEW ENGINE. TO MAKE MATTERS WORSE WE SPENT 3000 ON AND ENGINE...500 ON COOLING SYSTEM AND HAD THE TRANSMISSION REPROGRAMMED. THE TRUCK IS STILL HAVE MAJOR PROBLEMS AND NOW FOR SAYS IT NEEDS THE TRANSMISSION REBUILT OR REPLACED. ALL OF THIS IS OUT OF POCKET. WE CANT EVEN TRADE IT IN BC THEY WILL ONLY GIVE US 1/2 OF WHAT WE PAID FOR IT 2 YRS AGO. NIGHTMARE AND MAKES ME SICK THAT FORD DOESN'T CARE. *TR
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THERE WAS A LEAK IN THE RADIATOR. THE VEHICLE WAS TAKEN TO A REPAIR SHOP WHERE THE VEHICLE WAS REPAIRED BY REPLACING THE RADIATOR. THE FAILURE RECURRED AND THE CONTACT NEEDED A SECOND REPLACEMENT HOWEVER THE VEHICLE WAS NOT REPAIRED A SECOND TIME. THE MANUF…
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TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THERE WAS A LEAK IN THE RADIATOR. THE VEHICLE WAS TAKEN TO A REPAIR SHOP WHERE THE VEHICLE WAS REPAIRED BY REPLACING THE RADIATOR. THE FAILURE RECURRED AND THE CONTACT NEEDED A SECOND REPLACEMENT HOWEVER THE VEHICLE WAS NOT REPAIRED A SECOND TIME. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE CURRENT MILEAGE WAS 100,000. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.
VEHICLE STARTING MISSING, THEN SHAKING. HAD SPARK PLUGS REPLACED AND 3 BROKE OFF AND STUCK. NEEDED SPECIAL TOOL/EQUIPMENT TO GET OUT. VERY COSTLY. *TR
IN JULY 2009 AT 40000 MILES THE RADIATOR HAD A HAIRLINE FRACTURE AND THE RADIATOR HAD TO BE REPLACED, PAID OUT OF POCKET BY OWNER. IN MARCH 2010, AT 60000 MILES, ANOTHER RADIATOR IS BEING PUT IN THIS VEHICLE, AGAIN OUT OF POCKET EXPENSE FOR OWNER. THERE SHOULD NOT BE A NEED FOR A VEHICLE TO HAVE HAD 3 RADIATORS AT 60000 MILES. T…
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IN JULY 2009 AT 40000 MILES THE RADIATOR HAD A HAIRLINE FRACTURE AND THE RADIATOR HAD TO BE REPLACED, PAID OUT OF POCKET BY OWNER. IN MARCH 2010, AT 60000 MILES, ANOTHER RADIATOR IS BEING PUT IN THIS VEHICLE, AGAIN OUT OF POCKET EXPENSE FOR OWNER. THERE SHOULD NOT BE A NEED FOR A VEHICLE TO HAVE HAD 3 RADIATORS AT 60000 MILES. THE DEALERSHIP STATES THIS IS A KNOWN ISSUE WITH THIS MODEL AND THAT THESE ARE POORLY PLACED AND MANUFACTURED RADIATORS. FORD/MERCURY SHOULD RECALL THESE VEHICLES AND REIMBURSE OUT OF POCKET EXPENSES FOR ANYONE THAT HAS PROOF OF RADIATORS BEING REPLACED. *TR
THE MERCURY MOUNTAINEER WILL NO LONGER TAKE IN FUEL PROPERLY. CAN NOT PUT IN MORE THAN A HALF A GALLON OF GAS AT A TIME. TOOK IT TO A MECHANIC AND THEY SAID THERE WAS NOTHING BLOCKING THE GAS FROM ENTERING THE TANK. HE SAID IT WAS THE AUTOMATIC FUEL SHUT OFF THAT WAS INSTALLED IN THE VEHICLE. HAVE NOT REPLACED IT YET. *TR
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE AUTOMATIC FUEL PUMP SHUT OFF WOULD ACTIVATE WHENEVER FUEL WAS DISPENSED INTO THE FUEL TANK AT ANY FUEL LEVEL CAPACITY. IN 2009, THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE FUEL VALVE WAS REPLACED. THE SIMILAR FAILURE RECURRED AND THE VEHICL…
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TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE AUTOMATIC FUEL PUMP SHUT OFF WOULD ACTIVATE WHENEVER FUEL WAS DISPENSED INTO THE FUEL TANK AT ANY FUEL LEVEL CAPACITY. IN 2009, THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE FUEL VALVE WAS REPLACED. THE SIMILAR FAILURE RECURRED AND THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 50,000. UPDATED 03/16/12 *BF THE CONSUMER STATED THE VEHICLE WOULD ONLY TAKE A GALLON OF GAS. UPDATED 05/11/12
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT SHE WAS UNABLE TO REFUEL THE VEHICLE. THE DEALER INFORMED THE CONTACT THAT THE FILLER NECK ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. NO REPAIRS WERE PERFORMED. THE CURRENT MILEAGE WAS 101,000 AND THE FAILURE MILEAGE WAS 60,…
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TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT SHE WAS UNABLE TO REFUEL THE VEHICLE. THE DEALER INFORMED THE CONTACT THAT THE FILLER NECK ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. NO REPAIRS WERE PERFORMED. THE CURRENT MILEAGE WAS 101,000 AND THE FAILURE MILEAGE WAS 60,000.
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED ANTI-FREEZE FUMES WERE INSIDE OF THE VEHICLE AND A PREGNANT PASSENGER BECAME ILL FROM THE FUMES. THE CONTACT LATER DISCOVERED THAT THE ANTI-FREEZE WAS LEAKING. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACT…
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TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED ANTI-FREEZE FUMES WERE INSIDE OF THE VEHICLE AND A PREGNANT PASSENGER BECAME ILL FROM THE FUMES. THE CONTACT LATER DISCOVERED THAT THE ANTI-FREEZE WAS LEAKING. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER HAD NOT BEEN NOTIFIED OF THE FAILURE NOR WAS THE VEHICLE REPAIRED. THE CURRENT MILEAGE WAS 55,000 AND THE FAILURE MILEAGE WAS 42,000. THE VIN WAS UNAVAILABLE.
Official recalls
105V520000 · Visibility:windshield Wiper/washer:motor
Nov 9, 2005
ON CERTAIN TRUCKS, PASSENGER CARS AND SPORT UTILITY VEHICLES, THE WINDSHIELD WIPER MOTOR MAY HAVE BEEN PRODUCED WITHOUT GREASE BEING APPLIED TO THE OUTPUT SHAFT GEAR.
Consequence & remedy
Consequence: AFTER A PERIOD OF CONTINUOUS USE ON THE HIGH SPEED SETTING, LACK OF GREASE ON THE OUTPUT SHAFT GEAR MAY CAUSE THE GEAR TO DISTORT OR FRACTURE DURING OPERATION RESULTING IN A LOSS OF WIPER FUNCTION. INOPERATIVE WIPERS UNDER INCLEMENT WEATHER CONDITIONS COULD CAUSE A CRASH DUE TO IMPAIRED VISIBILITY.
Remedy: DEALERS WILL INSPECT THE WIPER MOTOR FOR THE PRESENCE OF GREASE AND GREASE THE WIPER MOTOR GEARS IF NECESSARY. THE RECALL BEGAN ON NOVEMBER 22, 2005. OWNERS MAY CONTACT FORD AT 1-800-392-3673 OR LINCOLN/MERCURY AT 1-800-521-4140.
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
0No exact-year investigations in this snapshot.