AVOIR

2005 Mercury Grand Marquis

Reliability, what owners report, and what it costs to keep.

62/100
Be careful

AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.

What owners actually report

Owners have filed 487 complaints with NHTSA about the 2005 Mercury Grand Marquis, and it carries 5 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.

Complaints by area, from NHTSA records for this model-year
AreaComplaintsShare
Exterior lighting23047%
Electrical system439%
Air bags347%
Vehicle speed control225%
Air bags225%
Electrical system184%
Steering163%
Seat belts82%
Tires71%
Service brakes71%

In owners' own words

Verbatim from NHTSA complaint records, trimmed for length.

The contact owns a 2005 Mercury Grand Marquis. The contact stated while attempting to make a left turn, the steering wheel failed to operate as intended causing the contact to have driven straight instead of turning. No

NHTSA complaint: Steering

my vehicle was running fine, than all of a sudden the transmission would not shift, i was like omg, what is going on, i had my son with me, my son was driving, he was so scared, i was like take a side street, stay level

NHTSA complaint: Power train

my brother got me this vehicle five yrs ago, and ever since then the air bag light has been on,i have no idea of why it is on, i don't know if it is the fuse, i don't know if there is even a air bag is in the vehicle my

NHTSA complaint: Air bags

My wife has a 2005 Mercury Grand Marquis. This vehicle has what I believe is an extremely unsafe placement of the brake and accelerator pedals. The pedals are extremely close together, closer than I have ever seen on a

NHTSA complaint: Service brakes

I bought this car from some stranger who doesn’t care about my shoulder pains driving a car with the steering wheel upside down these part stores & insurance companies get theirs can I please get what’s due to me so tire

NHTSA complaint: Steering

Seat belt does not fully clip in to buckle and tends to come undone while in operation of motor vehicle furthermore requires occupant to wiggle buckle back and forth to attempt to get a good connection between the two, b

NHTSA complaint: Seat belts

The contact owns a 2005 Mercury Grand Marquis. The vehicle was taken to the local dealer, where it was repaired under NHTSA Campaign Number: 15V861000 (Exterior Lighting). The contact stated that the headlights activated

NHTSA complaint: Exterior lighting

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at various speeds and at night, the headlights independently turned off. The contact had taken the vehicle to an independent mechanic w

NHTSA complaint: Exterior lighting

Recalls on record

NHTSA lists 5 recall campaigns for the 2005 Mercury Grand Marquis. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.

Exterior lighting:headlights 15V861000

Ford Motor Company (Ford) is recalling certain model year 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles manufactured October 3, 2001, to August 2, 2005. The affected vehicles have a lighting control module (LCM) that may fail, resulting in a loss of headlights.

Risk: A loss of headlights can reduce driver visibility and increase the risk of a crash.

Fix: Ford will notify owners, and dealers will replace the LCM, free of charge. The recall began April 14, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall

Steering:rack and pinion:pinion shaft 14V704000

Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermedia

Risk: Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash.

Fix: Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385. Dealers will inspect and re

Steering 13V385000

Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois

Risk: If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.

Fix: Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage

Fuel system 06E056000

CERTAIN AFTERMARKET FUEL FILTERS SOLD UNDER THE PUROLATOR BRAND NAME, P/N F65277, SHIPPED FROM JANUARY 16 THROUGH JUNE 2, 2006, FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. DUE TO INCORRECT DESIGN, THE QUICK CONNECTORS MAY NOT FULLY SEAT WITH THE TUBE INTERFACE, EVEN THOUGH THE PERSON MAKING THE

Risk: FAILURE OF THIS CONNECTION COULD LEAD TO FUEL SPILLAGE AND, IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.

Fix: UFI WILL NOTIFY OWNERS AND REPLACE THE FILTERS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2006. OWNERS MAY CONTACT UFI FILTERS USA AT 800-230-5876.

The seven scores

Reliability raw65good
Longevity est.70good
Maintenance61average
Depreciation60average
Performance69good
Efficiency36below average

How it compares in its class

Percentile ranks against other midsize & large cars in the catalog.

Which of these numbers are measured

What stands behind each score for this car:

Common questions

What goes wrong with the 2005 Mercury Grand Marquis?

Owners have filed 487 complaints with NHTSA for this model-year, and exterior lighting is the most reported area with 230 of them (47%). There are 5 recalls on record. Check any specific car against its VIN before buying.

Is the 2005 Mercury Grand Marquis reliable?

AVOIR scores its reliability 65/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.

How long will a 2005 Mercury Grand Marquis last?

AVOIR scores its longevity 70/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2005 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.

Should I buy a 2005 Mercury Grand Marquis?

AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 62/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.

Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.