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2003 Mercury Grand Marquis

2003 Mercury Grand Marquis

Sedan
RWD
Regular Gasoline
Horsepower
MPG Combined
18 mpg
MSRP
Torque
Reliability Score
94/ 100Excellent
Based on 448 NHTSA complaints

Should You Buy a 2003 Mercury Grand Marquis?

The 2003 Mercury Grand Marquis is a full-size sedan that combines classic American styling with a spacious interior and a powerful 4.6L V8 engine, producing 224 horsepower and 272 lb-ft of torque. With a rear-wheel drive configuration and a 4-speed automatic transmission, it offers a comfortable ride, making it suitable for both city driving and long road trips. The vehicle has a combined fuel economy of 18 MPG, which is reasonable for its class. Priced at an MSRP of $24,870, it provides good value for buyers looking for a reliable and roomy sedan.

However, potential buyers should be aware of some common issues reported through NHTSA complaints. With a total of 448 complaints, the most frequent issues involve exterior lighting and electrical system problems, particularly around the 40,000-100,000 mile range. Despite these concerns, the Grand Marquis boasts a solid reliability score of 93.9/100, indicating that it remains a dependable choice for those in the market for a used sedan.

Ideal For

The 2003 Mercury Grand Marquis is best suited for families or individuals seeking a spacious and reliable sedan for daily commuting and long-distance travel.

Strengths

  • +Spacious interior with seating for six
  • +Powerful 4.6L V8 engine for strong performance
  • +High reliability score of 93.9/100
  • +Comfortable ride quality for long trips
  • +Affordable price point for a full-size sedan

Weaknesses

  • -Frequent complaints about exterior lighting issues
  • -Older design may lack modern features
  • -Fuel economy of 18 MPG is below average for sedans
  • -Limited resale value due to age
  • -4-speed automatic transmission may feel outdated

Known Issues (NHTSA Data)

The 2003 Mercury Grand Marquis has recorded a total of 448 complaints, with 32 related to crash incidents and 2 related to fire incidents, resulting in 22 injuries but no fatalities. The most common issues are associated with exterior lighting and electrical systems, particularly at certain mileage intervals. While these issues may be a concern for potential buyers, the vehicle's overall reliability score of 93.9/100 suggests that it remains a trustworthy option.

Complaint Patterns by Mileage
EXTERIOR LIGHTING
80000-100000 mi
33 reports
EXTERIOR LIGHTING
40000-60000 mi
23 reports
EXTERIOR LIGHTING
60000-80000 mi
20 reports
EXTERIOR LIGHTING
120000-140000 mi
19 reports
EXTERIOR LIGHTING
100000-120000 mi
19 reports
EXTERIOR LIGHTING
140000-160000 mi
10 reports
EXTERIOR LIGHTING
160000-180000 mi
7 reports
ELECTRICAL SYSTEM
80000-100000 mi
6 reports
Top Complaint Areas
EXTERIOR LIGHTING42% of complaints
ELECTRICAL SYSTEM10% of complaints
STEERING6% of complaints
EXTERIOR LIGHTING:HEADLIGHTS4% of complaints
VEHICLE SPEED CONTROL4% of complaints

Performance

Horsepower
Torque
Engine
4.6 L
Cylinders
V8
Transmission
Automatic 4-spd
Drive Type
RWD

Efficiency

MPG Combined
18
Fuel Type
Regular Gasoline

Dimensions

Length
Width
Height
Wheelbase
Curb Weight
Ground Clearance

Capacity

Doors
Seating
Cargo
Max Cargo
Max Towing
Max Payload

ddpc Estimated Value

$5,408
$4,597 – $6,219
Depreciation Over Time
New
5yr
10yr
15yr
ddpc Estimate based on original MSRP, standard depreciation curves, vehicle class, and NHTSA reliability data. Not a substitute for professional appraisal. Actual value depends on condition, mileage, location, and market conditions.

Estimated Cost of Ownership

Estimated Annual Cost
$4,724
Per Mile
$0.39
5-Year Total
$43,082
Fuel
$2,333/yr
Maintenance
$600/yr
Insurance
$1,791/yr
Depreciation
$3,892/yr
Based on industry-standard estimates for this vehicle class. Fuel cost assumes 12,000 mi/yr at national average gas prices. Maintenance uses class-based intervals, not manufacturer-specific schedules. Actual costs vary by location, driving habits, and vehicle condition.

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