Reliability
Mercury

Montego (2005)

2005 · Compact Sedan · 2 engines
135 NHTSA Complaints
2 Recalls
2 Fire Reports
10 Crash Reports
View all 3 generations of the Mercury Montego → Inspection checklist

Reliability Score

4.7 / 10

Reliability score

More owner complaints than similar compact sedans

A score of 7.0 means as many complaints as similar vehicles. Based on complaints owners filed with NHTSA about the engine, transmission or drivetrain.

Owners filed 66 powertrain complaints. A typical compact sedan fleet of this size and age would have drawn about 28.

Scores this low have often eased: the three years after looked about 1.7 points better in the typical case.

Breakdown
Complaints overall66 complaints against about 28 for similar vehicles
4.7
Last three years
n/aNot enough data
Engine, transmission or drive unit failed or replaced
n/aNot enough data
Oil consumption, fuel in the oil or overheating
n/aNot enough data

Each line scores one view of the same complaints the same way, so the lines overlap. The mark on each bar is 7.0, as many complaints as similar vehicles. A line shows a number once similar vehicles would draw at least 5 of its complaints (20 for the last three years).

Similar vehicles are others in the same class, compared at the same age and in the same years. The score counts complaints owners filed with NHTSA, per vehicle built, which is different from the share of vehicles that fail. How the score is worked out

On the record

No serious powertrain recall covering 5% or more of this generation and no escalated investigation in NHTSA's files. Warranty extensions and settlements have not been researched.

Complaints by Engine Code

Every complaint of any kind (brakes, airbags, electrical and the rest) whose VIN names the engine, across all model years. The score above counts only engine, transmission and drivetrain complaints, so its figures for the same engine are smaller. Fire, injury and death figures count complaints that report one.

3.0-V6-Gas

3.0L 6-cyl / 203 hp
111 complaints 111.0 per year Gasoline
1 fire report
View details

Complaint Breakdown

transmission
42
electrical
24
brakes
15
engine
14
fuel system
12

Mercury Montego Unidentified Engine

24 complaints 24.0 per year
1 fire report
View details

Complaint Breakdown

transmission
7
other
5
brakes
3
electrical
3
engine
3

Owner Complaints by System

Complaints owners filed with NHTSA about the Mercury Montego, counted across every engine. A complaint can name more than one system.

Transmission: 49 owner complaints
Electrical System: 27 owner complaints
Brakes: 18 owner complaints
Engine: 17 owner complaints
Fuel System: 12 owner complaints

What to check on a used 2005 Mercury Montego

On a used 2005 Mercury Montego, the systems with the most NHTSA owner complaints are the transmission and drivetrain (49), the electrical system (27) and the brakes (18). Each one has an inspection step below, with counts as of 2026-10-09. A complaint is an owner report, not a confirmed defect, and counts rise with sales.

  1. Accelerate gently through every gear, then once at full throttle. Shift into Reverse and back to Drive.Costly repair. NHTSA has 49 owner complaints on the 2005 Mercury Montego about the transmission and drivetrain.
  2. Switch on every electrical item in turn: lights, windows, locks, wipers, climate fan, screen and power outlets.Costly repair. NHTSA has 27 owner complaints on the 2005 Mercury Montego about the electrical system.
  3. On an empty road, brake firmly from 40 mph with a light grip on the wheel.Safety. NHTSA has 18 owner complaints on the 2005 Mercury Montego about the brakes.
  4. Start the engine cold and listen for the first 30 seconds, then again at idle once it is warm.Costly repair. NHTSA has 17 owner complaints on the 2005 Mercury Montego about the engine.
  5. Let the engine idle for five minutes, walk around the car and smell for fuel.Safety. NHTSA has 12 owner complaints on the 2005 Mercury Montego about the fuel system.
Open the full inspection checklist for the 2005 Mercury Montego

Recalls (2)

06V383000Oct 5, 2006cosmetic
Latches/Locks/Linkages

ON CERTAIN PASSENGER VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, COLORADO, CONNECTICUT, DELAWARE, IDAHO, ILLINOIS, INDIANA, IOWA, KANSAS, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, MONTANA, NEBRASKA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, NORTH DAKOTA, OHIO, PENNSYLVANIA, RHODE ISLAND, SOUTH DAKOTA, UTAH, VERMONT, WEST VIRGINIA, WISCONSIN, AND WYOMING. THE SIDE DOOR LATCH MECHANISMS MAY EXPERIENCE WATER INTRUSION ALLOWING THE LATCH MECHANISM TO FREEZE IN COLD WEATHER.

05V515000Nov 9, 2005serious
Fuel System

ON CERTAIN PASSENGER VEHICLES, THE STRAPS THAT SECURE THE FUEL TANK TO THE VEHICLE BODY MAY BREAK, CAUSING THE FUEL TANK AND FUEL TANK HEAT SHIELD TO DROP ON THE DRIVESHAFT (ALL WHEEL DRIVE VEHICLES) OR EXHAUST SYSTEM (FRONT WHEEL DRIVE VEHICLES).

Alternatives in Compact Sedan

Frequently Asked Questions

What are the most common 2005-2005 Mercury Montego complaints?

Owners have filed 135 complaints with NHTSA about the 2005-2005 Mercury Montego. The systems they name most often are the transmission, the electrical system and the brakes.

Is the 2005-2005 Mercury Montego a good used car?

That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 135 complaints with NHTSA about the 2005-2005 Mercury Montego. Check which systems they name most often and whether a recall is still open on that car.

How many NHTSA complaints does the 2005-2005 Mercury Montego have?

NHTSA has 135 owner complaints on file for the 2005-2005 Mercury Montego as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.

What recalls affect the 2005-2005 Mercury Montego?

NHTSA lists 2 recalls covering some 2005-2005 Mercury Montego vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.

What should I check before buying a used Mercury Montego?

Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the transmission, the electrical system and the brakes, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.

Does the Montego have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2005 Mercury Montego. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 135 complaints analyzed. Data confidence: high. Last updated: 2026-10-18.

© 2026 The Weekly Driver