HAD TO REPLACE RADIATOR AT 36,500 MILES. PURCHASED VEHICLE ON SEPT 9, 2009 AS A CERTIFIED MERCURY VEHICLE AND WITHIN 3 MONTHS HAD A LEAK IN THE RADIATOR THAT NEEDED TO BE REPLACED. *TR
2006 Mercury Mountaineer engine problems
moderate 50 complaints filed with NHTSA · avg repair $3,100
Complaints
50
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 7 most recent
The contact owns a 2006 Mercury Mountaineer. The contact stated that her husband informed her that the vehicle had experienced an unknown radiator failure. The vehicle was taken to an independent mechanic, where the radiator was replaced; however, the failure reoccurred. The vehicle was repaired for a second time by an independent mechanic; however, the failure persisted. The local dealer was made…
THE RADIATOR COOLANT SYSTEM IS JUNK. BUSTED SEALS AND HOSES ALL THE TIME. I AM BEGINNING TO THINK THIS CAR IS A LEMON. I REPLACED MY RADIATOR LESS THAN 1 YEAR AGO, HAD THE PART REPLACED WITH THE FACTORY PART FORD SUPPLIES AND ONCE AGAIN I HAVE A BUSTED SEAL AND HAVE TO REPLACE THE RADIATOR AGAIN. WHEN ARE THEY GOING TO RECALL THIS PART? SERIOUSLY I'VE DONE MY RESEARCH AND THE RADIATORS ON THESE VE…
MY 2006 MERCURY MOUNTAINEER WAS LEAKING COOLANT DUE TO A CRACK IN THE RADIATOR. AFTER SEARCHING ONLINE FORUMS, I HAVE LEARNED THAT HAS BEEN A LONG STANDING ISSUE WITH MANY OF THIS VEHICLES OWNERS. UNFORTUNATELY FOR OWNERS, FORD ISSUED A TBS IN 2009 JUST IN TIME FOR MOST OF THE AFFECTED VEHICLES' WARRANTIES TO EXPIRE. SOME OWNERS ARE ON THEIR 3RD OR MORE RADIATOR REPLACEMENT, I AM ONLY ON MY F…
RADIATOR BEGAN LEAKING IN MY 2006 MERCURY MOUNTAINEER AT 51,500 MILES. *TR
"TAKATA RECALL" ENGINE ALWAYS TURNS OFF WHILE DRIVING. I FIXED IT AT 3 DIFFERENT WORKSHOPS AND STILL THE SAME.
THE RADIATOR KEEPS LEAKING, FIRST DEALER SAID THERE WAS NOTHING WRONG WITH THE VEHICLE, I AM ALWAYS PUTTING COOLANT IN THE VEHICLE. YOU CAN SMELL THE COOLANT AS SOON AS YOU OPEN THE HOOD. THIS HAS BEEN AN ONGOING PROBLEM SINCE I HAD 53,000 MILES AND NOW THAT I HAVE 122,000 MILES IT IS GETTING WORSE AND HAS TO BE REPAIRED AGAIN. *TR
Common questions
How serious is the engine problem on the 2006 Mercury Mountaineer?
It's a documented issue but not catastrophic. 50 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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