TL* THE CONTACT OWNS A 2007 MERCURY MONTEGO. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE FUEL GAUGE AND SPEEDOMETER BACKLIGHTS FAILED TO ILLUMINATE. THE VEHICLE WAS NOT TAKEN TO A MECHANIC FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.
2007 Mercury Montego electrical problems
moderate 5 complaints filed with NHTSA · avg repair $850
Complaints
5
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 4 most recent
AN ELECTRONIC DEVICE KNOWN AS THE SMART JUNCTION BOX HAS FAILED 3 TIMES SINCE NEW.THE FIRST TWO TIMES IT WAS REPLACED UNDER THE ORIGINAL MANUFACTURER"S WARRANTY. THE WARRANTY HAS EXPIRED AND IT FAILED AGAIN. THIS PART IS VERY EXPENSIVE COSTING IN EXCESS OF $500.00 PLUS LABOR CHARGES WHICH I MUST PAY. WHEN THIS PART FAILS, THE SIGNAL LIGHTS, BRAKE STOP LIGHTS AND OTHER DEVICES DO NOT WORK WHICH …
The contact owns a 2007 Mercury Montego. The contact stated that while driving at 25 MPH, the vehicle lost automotive power. There were several unknown warning lights illuminated. The vehicle was towed to an independent mechanic to be diagnosed, and the contact was informed that the failure was due to an electrical shortage in the taillight because of an accumulation of moisture inside the taillig…
WE HAVE HAD INTERMITTENT ELECTRICAL ISSUES FOR SEVERAL YEARS.THE CAR SUDDENLY LOOSES ALL ELECTRICAL POWER. THE BATTERY IS COMPLETELY DEPLETED. ONCE JUMP STARTED THE CAR WILL THEN OPERATE PROPERLY. I HAVE HAD THE ALTERNATOR REPLACED ONCE AND THE CAR HAS BEEN CHECKED BY MECHANICS SEVERAL TIMES, NO ONE CAN FIND THE PROBLEM. WE OFTEN TIMES SMELL A BURNT PLASTIC ODOR JUST BEFORE THE FAILURES. THIS FAIL…
Common questions
How serious is the electrical problem on the 2007 Mercury Montego?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical 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 $850 for electrical 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 electrical?
No active recalls currently cover electrical 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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