Research · Large Cars

2008 Mercury Grand MarquisRecalls, problems, MPG & safety

NHTSA lists 3 safety recalls and 80 owner complaints for the 2008 Mercury Grand Marquis. Most complaints involve steering (23) and vehicle speed control (15). The EPA rates it 18 mpg combined.

Combined MPG
18mpg
EPA · 1 version
NHTSA overall
—
Not rated by NCAP
Safety recalls
3campaigns
Latest Nov 2014
Owner complaints
80
Top: steering
Fuel cost / yr
$3,450est.
EPA estimate, best version
01 —Recalls

Safety recalls

3 NHTSA campaigns · applies to some vehicles, check your VIN

Steering: pinion shaft

Free remedy

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 intermediate shaft was serviced during the course of safety recall 13V-385. The prior repairs may not have been correctly performed.

SteeringReported Nov 5, 2014NHTSA 14V704000

Steering

Free remedy

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, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper intermediate shaft to collapse and the steering column lower bearing to separate.

SteeringReported Aug 29, 2013NHTSA 13V385000

Suspension: hub

Free remedy

ON CERTAIN PASSENGER VEHICLES, A FRONT WHEEL BEARING AND HUB ASSEMBLY MAY FRACTURE DUE TO IMPROPER HEAT TREATMENT.

SuspensionReported Jun 26, 2007NHTSA 07V270000
Data from NHTSA Recalls API · synced Nov 9, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

80 complaints filed with NHTSA · Sep 2007 – Oct 2026
  1. Steering23
  2. Vehicle speed control15
  3. Electrical system9
  4. Structure9
  5. Exterior lighting5
  6. Service brakes5
  7. Service brakes, hydraulic5
  8. Engine and engine cooling5
  9. Engine4

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Grand Marquis model year we’ve synced.

View as table
Model yearNHTSA complaints
1996275
1997372
1998177
1999197
2000187
2001183
2002106
2003395
2004360
2005488
2006143
200796
200880
200926
201025
20119
Crashes reported
11
Fires reported
1
Injuries reported
8
Deaths reported
2
Data from NHTSA Complaints API · synced Nov 9, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Steering

23 reports2 crashes
“total collapse of upper immediate steering shaft resulting on total separation/failure and complete loss of steering. this literally separated/fell apart in my hand when i was cleaning the front seat carpeting. i had just finished driving back from a 100 mile trip. if this would have happened on the freeway, i would have lost all steering of the vehicle resulting in catastrophic injury or death TO myself or others. i called ford and told them what happened. i found out there was a recall on this item. i found out this car was service for this before. even though this car went in for the recall, this item (upper steering shaft) has totally failed again. i have seen that this is COMMON for this steering to fail even after the initial recall "repair". this could have easily resulted in death and ford is willing to do nothing about it. one would think that of all components of a vehicle, the steering system would be safe and reliable. apparently ford does not care. they are aware of my auto failure and that it could cause certain death, but they are not interested in repairing this component that should be safe under all normal driving circumstances.”
Owner complaint to NHTSAFiled Oct 13, 2026SteeringODI 11770830

Vehicle speed control

15 reports5 crashes1 fire
“I WAS DRIVING IN TOWN AND SEVERAL TIMES WHEN I SLOWED DOWN TO STOP AT A STOP SIGN OR CORNER, AFTER BRAKING MY CAR ACCELERATED BY ITSELF. THE ENGINE REVVED UP AND MADE THE CAR JUMP FORWARD. I HAD TO SLIGHTLY RELEASE THE BRAKE SND BRAKE HARDER TO STOP AND AVOID GOING INTO THE INTERSECTION.”
Owner complaint to NHTSAFiled Mar 9, 2021Vehicle speed controlODI 11399994

Electrical system

9 reports1 crash
“TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS AT NIGHT, THE HEADLIGHTS INTERMITTENTLY FAILED TO OPERATE WITHOUT WARNING. THE CONTACT ALSO STATED THAT THE INSTRUMENT PANEL WENT BLANK WHILE EXPERIENCING THE FAILURE. THE CONTACT STATED THAT THE HEADLIGHTS RESUMED NORMAL OPERATION A FEW MINUTES AFTER FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE VIN WAS NOT UNDER RECALL. THE MANUFACTURER REFERRED THE CONTACT TO A LOCAL DEALER TO HAVE THE VEHICLE INSPECTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 72,000.”
Owner complaint to NHTSAFiled Mar 17, 2021Exterior lighting, Electrical systemODI 11403459
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026
04 —Key specs

Engines, transmissions & drive

1 version rated by the EPA
EPA class
Large Cars
Engines
4.6L 8-cyl
Transmissions
Automatic 4-spd
Drive
Rear-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 9, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Grand Marquis FFV
Auto 4-spd, 8 cyl, 4.6 L · Rear-Wheel Drive
152318$3,450494
Data from EPA fueleconomy.gov · synced Nov 9, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2008 Mercury Grand Marquis as of Nov 9, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 9, 2026Vehicle 2812Vehicle 2535
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2008 Grand Marquis questions

How many recalls does the 2008 Mercury Grand Marquis have?

3 safety recalls as of Nov 9, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2008 Mercury Grand Marquis problems?

Owners filed 80 complaints with NHTSA. The most-cited components are steering (23), vehicle speed control (15), electrical system (9). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2008 Mercury Grand Marquis get?

The EPA rates the 2008 Mercury Grand Marquis at 18 mpg combined, depending on engine and drivetrain (1 version rated).

Data from NHTSA & EPA · synced Nov 9, 2026