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Mercury MontegoModel year report

2005 Mercury Montego Problems

Complaints
135filed with NHTSA
Median mileage
69,590miles, 122 complaints with mileage
Recalls
2campaigns on record
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
21 mpgcombined, 3.0L 6-cyl FWD · 19 city / 26 hwy

Sources: NHTSA records for the 2005 Mercury Montego (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

What owners report

Owners of this model year most often describe transmission problems: harsh or delayed shifting, jerking, momentary loss of engagement and, in some cases, a transmission that must be replaced. A second recurring theme is the instrument cluster going dead or resetting, sometimes together with erratic throttle behavior, and rear brakes wearing unusually fast. Reports are spread across the mileage range, with transmission and cluster complaints appearing from roughly 40,000 miles upward.

  1. Transmission and drivetrain

    Harsh, jerking or slipping transmission

    • 51 complaints (38%)
    • median 58,650 mi at 6.5 yrs old (48 state mileage)
    • 4 mention a crash, fire or injury
    • owner-quoted repair $3,947 (median of 11 quotes)
    • filed 2005–2020

    Owners describe the transmission jerking, banging or slamming into gear, hesitating before engaging, and occasionally dropping out of gear so engine speed spikes while the car slows. Several report that it happens more once the car is warm or on longer trips, and some were told by the dealer that the transmission or the valve body needed replacement. A few describe the vehicle refusing to move at all, with warning lights and a wrench symbol on the dash. Mostly reported between roughly 40,000 and 100,000 miles, with some complaints under 40,000 and several past 130,000 miles.

    7 related service bulletins

    What to check: Ask for transmission service records and whether fluid changes were done; on a test drive, note any clunk or delay when shifting from park to drive and any shudder under light acceleration when warm.

    2 excerpts from owner complaints in NHTSA records

    “I purchased a new 2005 Mercury Montego in may 2005. The car now has 85k miles with the 6 speed transmission.the transmission has been fine on short trips (35 miles or less) but anything over that and it starts doing really crazy stuff. It will downshift 3-4 gears at highway speeds...slam into gear... Then immediately upshift. This happens so hard that the whole car shakes. One time it was so bad, we felt we had been hit. …”

    NHTSA complaint #10284885, filed 2009-09, 78,000 miles

    “On june 22, 2010 I noticed the engine warning light come on. About 1/2 mile further the transmission starts bucking and jumping. The 2005 Mercury Montego was having a difficult time pulling a 15% grade, once to the top everything smoothed out. Then 2 miles further another hill came. The 2005 Mercury Montego started to buck and jump once again. I made it home that evening. The next day I called the dealership and explained the situation. It was decided to take the vehicle in to be looked at. …”

    NHTSA complaint #10341051, filed 2010-07, 50,327 miles
  2. Vehicle speed control

    Engine surges or drops into failsafe mode

    • 54 complaints (40%)
    • median 83,155 mi at 6.9 yrs old (50 state mileage)
    • 5 mention a crash, fire or injury
    • owner-quoted repair $950 (median of 8 quotes)
    • filed 2008–2018

    Owners describe the engine speed rising on its own while idling or at low speed, the car lunging forward, and random loss of acceleration with a failsafe engine mode message or wrench light that often clears after a restart. Many say the dealer cleaned or replaced the throttle body, and some report the symptom returned after the repair. A few describe the engine stalling while driving at speed. Reported from about 27,000 miles upward, appearing unpredictably and sometimes intermittently over years.

    3 related service bulletins

    What to check: On a test drive, watch for idle speed wandering when stopped and for any wrench or failsafe message; ask whether the throttle body has been cleaned or replaced and whether the PCM has been reprogrammed.

    2 excerpts from owner complaints in NHTSA records

    “I was in the meddle lane of a four lane highway when I lost all my acceleration. The motor was still running but I could not go anywhere. When I got off the highway I restarted the car but every few miles it would do the same thing. Am told that it is a bad throttle body and ford has known about it for years but is not doing anything about it. It is going to get people killed ! My part cost over 600.00 so it sets in the drive.”

    NHTSA complaint #10544569, filed 2013-09, 133,000 miles

    “I just bought this car from a used car dealer with 108k, got way overcharged because I don't have any credit. The second day that I had the car I was taking my baby to day care. The car shut off in the middle of the highway and we almost got hit. The engine fail safe mode came on. The car did this again on the way home. Took it back to the dealer and they had the throttle body replaced. I just got the car back today and it did it again! I'm about to loose it!”

    NHTSA complaint #10474170, filed 2012-09, 108,485 miles
  3. Electrical system

    Instrument cluster goes dead or resets

    • 20 complaints (15%)
    • median 87,000 mi at 7.9 yrs old (20 state mileage)
    • filed 2010–2021

    Owners report that all gauges drop to zero and dash lights go out, sometimes with reverse lights staying on in every gear, warning chimes, radio static and loss of wipers or climate control. Several say restarting the car sometimes restores the gauges and sometimes does not, and that the problem grew more frequent over time. Dealers reportedly replaced the instrument cluster in some cases, and some owners said the fault could not be reproduced at the shop. Reported from about 45,000 to over 200,000 miles, often intermittent at first and becoming more frequent.

    5 related service bulletins

    What to check: Check that all gauges sweep normally at startup and that warning lights behave as expected; ask whether the cluster or its connector has ever been replaced, and watch for reverse lights staying on.

    2 excerpts from owner complaints in NHTSA records

    “Started 2005 Montego to pick up fianc from work, got back inside after brushing snow off the car and I pressed the throttle to drop the idle speed, all of the gauges on my instrument panel went black (tach,speed,fuel,water temp,AC/heater), my reverse lights came on, my stereo had really loud static coming through it and my wipers/heater stopped working. Came back a few hours later and gauges worked but check engine, transmission and charging systems lights were on. …”

    NHTSA complaint #10811285, filed 2015-12, 223,000 miles

    “Car runs great for about 20 minutes then I get a surge in the engine, dash cluster goes dead, car jerks and I lose power randomly. Everything comes back on but will go out multiple times getting worse everytime. I have lost power to transmission once, no forward or reverse. Replaced the dash cluster and car ran great for 2 days then started all again. This happens mainly while in the city, hasn't happened on highway yet thank goodness. Car just sits in driveway, afraid to drive it. …”

    NHTSA complaint #10882183, filed 2016-07, 147,000 miles
  4. Body and structure

    Door latches freeze and won't close

    • 11 complaints (8%)
    • median 79,500 mi at 12.2 yrs old (10 state mileage)
    • filed 2013–2025

    Owners report that in freezing weather a front door will not latch, so the door will not stay shut until the mechanism warms up. Some cite the door latch recall and say they were told their vehicle's VIN was not covered. Others describe the door ajar message taking over the instrument panel display. Reported in cold, below-freezing conditions, typically on higher-mileage vehicles.

    Recall 06V383000

    What to check: Ask whether the door latch recall was completed under this VIN, and test that each door latches firmly; in cold climates, check latch operation on a cold morning.

    2 excerpts from owner complaints in NHTSA records

    “Latches/locks recall recall #06v383000 ford reference #06s45 the latch on my driver side door keeps freezing, keeping the door from staying closed. It has already bounced open once while I was in motion on ny state route 434. I also have spent a great amount of time trying to shut my door for the past 4 days before and after every trip once I am parked. Even so, I have been unable to shut my door for the past day. …”

    NHTSA complaint #11063432, filed 2018-01, 113,707 miles

    “In freezing weather, door latches will not latch and the door remains open. This only happens when the car is left outside and is not fixed until the door mechanisms warm up from being in the sun. Due to this issue we are unable to drive the vehicle until the doors latch again. I've been told my car was not affected by the recall (#06s45), but I feel that I have the exact problem described and would like to get the issue fixed so I don't have to worry about it the rest of winter.”

    NHTSA complaint #10936037, filed 2016-12, 140,000 miles
  5. Brakes

    Rear brakes wear quickly or drag

    • 12 complaints (9%)
    • median 26,500 mi at 2.5 yrs old (10 state mileage)
    • filed 2006–2011

    Owners report rear brake pads and rotors needing replacement at low mileage, heavy brake dust on the rear wheels, and noise or roughness from the rear brakes. Some mention moisture-related rust on rotors and increased stopping distance noticed before the wear was found. Dealers reportedly replaced pads and turned or replaced rotors, with some owners offered ceramic pads. Reported mostly between about 15,000 and 40,000 miles, with some later reports.

    3 related service bulletins

    What to check: Inspect rear pad thickness and rotor condition before buying, and ask for brake service receipts; a service bulletin covers rear brake wear and a related service campaign for this symptom.

    2 excerpts from owner complaints in NHTSA records

    “Rear bakes wearing out extremely fast. Required replacement at 17k miles and at 12k miles. Brakes wearing out at rates faster than customary may lead to unreasonable expectation of timely repair in time, and brake failure in service. Dealer service is offering to install ceramic brake pads.”

    NHTSA complaint #10177931, filed 2007-01, 29,000 miles

    “Mercury Montego with brake problems. Consumer states that the rear brakes were replaced after 16,000 miles, and the front brakes were replaced after 26,000 miles. She believes there is a defect with the type of metal that is being used.”

    NHTSA complaint #10228416, filed 2008-05, 16,113 miles

Buying note. A pre-purchase inspection focused on the transmission and the instrument cluster is worthwhile on this model year, since those two areas account for most owner complaints and repairs can be costly. Ask for service records covering transmission fluid, throttle body work, brake replacement and any completed recalls.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.

NHTSA recorded 135 consumer complaints for the 2005 Mercury Montego. 122 of the complaints include a mileage, and 25% of those were filed for vehicles with under 50,000 miles; the median is 69,590 miles. Of all complaints, 10 involved a crash, 2 a fire, 6 an injury, according to the filers. NHTSA lists 2 recall campaigns and 48 technical service bulletins for this model year.

Not compared (before 2008). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Also reported: Exterior lighting (3), Latches, locks and linkages (3), Seat belts (2), Visibility (wipers, defrost, mirrors) (2), Wheels (2), Electronic stability control (1), Equipment (1), Steering (1), Suspension (1), Tires (1).

Example complaints

Transmission and drivetrain: “I just pulled my car off the lot not even 10 minutes later there was jerking then my car stopped dead in the middle of a busy street.this has happened numerous times with the worst being on a one way and my nieces no more than 10 years old in the car my car made a kind of a loud humming noise,jerked then stopped in the street.at times I can't even reverse or go up steep hills.”

NHTSA complaint #10713200, filed 2015-04, 104,000 miles

Electrical system: “About 6 months ago all the dash indicators turned on. They went out for a few minutes then came back on and stayed on. I was told it was in the electrical harness. It would be a $700.00 plus cost to fix it. It is a common problem I would think there would be a recall on such a situation. I have to drive not knowing if there is trouble with the lights on full time.”

NHTSA complaint #10915332, filed 2016-10, 175,000 miles

Vehicle speed control: “My 2005 Mercury Montego (79,000mi.) has unexpectedly lurched on two occasions. The first time I was driving slowly in a parking lot, and the car suddenly accelerated and lunged forward. Braking helped, but the lunging occurred again each time I tried to drive forward. I was able to move into a parking space and turn the car off which stopped the lurching movement. I sat for several minutes, restarted the car and drove away without incident. This didn't happen again for several months until a similar occurrence yesterday. …”

NHTSA complaint #10357637, filed 2010-09, 79,000 miles

Brakes: “When hitting the brakes my car had a whining noise and accelerated not responding to my efforts to stop.I avoided the cars in front of me and also to the right of me by moving to the turning lane to stop myself from hitting anyone else. However to possibly avoid another accident, I crossed over to the other traffic lanes on order to get off the highway where I was still involved in an accident which totaled my car.”

NHTSA complaint #10895433, filed 2016-08, 126,000 miles

Mileage when problems were reported

25% of the 122 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 50,000 and 108,000 miles.

3%0–108%10–2513%25–5030%50–7517%75–10020%100–1508%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (122 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 69,590 miles.

Complaints by year filed

Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

’07’1022’13’16’19’25
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2005 Mercury Montego. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
Montego · sedan not rated5 / 5———

Ratings before the 2011 model year come from an older, less demanding test and are not comparable with ratings for 2011 and later.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2005 Mercury Montego version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
Montego AWD3.0L 6-cylCVT172319$3,550
Montego FWD3.0L 6-cyl6-speed automatic192621$3,200
Montego FWD3.0L 6-cylCVT182520$3,350

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2005 Mercury Montego → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 48 on record; the latest 10 are shown.

See all 48 bulletins →

Other model years of the Mercury Montego

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20073668,2501—21Not compared (before 2008)Rising
20068566,0000—21Not compared (before 2008)Falling
200513569,5902—21Not compared (before 2008)Falling

All Mercury Montego model years · Best and worst years by complaints

Frequently asked questions

What are the most common problems with the 2005 Mercury Montego?

Owners of this model year most often describe transmission problems: harsh or delayed shifting, jerking, momentary loss of engagement and, in some cases, a transmission that must be replaced. The issues reported most often: Harsh, jerking or slipping transmission; Engine surges or drops into failsafe mode; Instrument cluster goes dead or resets.

How many NHTSA complaints does the 2005 Mercury Montego have?

NHTSA recorded 135 consumer complaints for the 2005 Mercury Montego as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2005 Mercury Montego is reported most often?

Transmission and drivetrain is named most often, in 49 complaints (36% of the total), followed by electrical system with 27.

Has the 2005 Mercury Montego been recalled?

NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2005 Mercury Montego get?

The EPA rates the 2005 Mercury Montego (Montego FWD, 3.0L 6-cyl) at 21 mpg combined, 19 city and 26 highway, with an estimated annual fuel cost of $3,200 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2005 Mercury Montego reported?

Among the 122 complaints that include a mileage, the median is 69,590 miles and the middle half falls between 50,000 and 108,000 miles; 25% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.