2005 Mercury Grand Marquis Mercury Grand Marquis 2005

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2005 Mercury Grand Marquis repairs by problem area

Engine (0%)

Transmission and Drivetrain (22%)

Brakes and Traction Control (11%)

Suspension and Steering (0%)

Electrical and Air Conditioning (56%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (0%)

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Chart based on 9 repairs.
See TSBs and recalls for the 2005 Mercury Grand Marquis.

2005 Mercury Grand Marquis electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (20%)

$500 - $999 (40%)

$100 - $499 (0%)

< $100 (40%)

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Chart based on 5 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2005 Mercury Grand Marquis 4dr Sedan

239-horsepower 4.6L V8 4-speed automatic RWD

36000 mi Power door lock - front passenger door would not lock. Removed door lock power cables and re-installed. Been working fine ever since. 

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2005 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

243000 mi

US $700
seat belt pretensioner system on passenger side; air-bag code "34" 
199800 mi

US $550
air-bag light 
130200 mi

﷼1000
Had to change the dynamo and battery. 
83000 mi Lighting Power module: warrentee repair, no part, gave me loaner in shop for 30 days - part on back order 

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See TrueDelta's information for all Sedans
See TrueDelta's information for all Mercury models.

2005 Mercury Grand Marquis Electrical Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2005 Mercury Grand Marquis problems occur, check out our car reliability stats.