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2004 Mercury Marquis: common problems

Owners of the 2004 Mercury Marquis filed 12 complaints with NHTSA, most often about exterior lighting and steering. Details by component below, with sources.

Key figures

Owner complaints
12

What fails most often

321
  1. 1 Exterior lighting 58% of all complaints
  2. 2 Steering 33% of all complaints
  3. 3 Electrical system 25% of all complaints
Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Symptoms owners describe

How many of the 12 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

Components owners complain about

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Exterior lighting700
Steering400
Electrical system300
Other100

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

Comparison

By complaint count this model year ranks 10,160 of 36,656 model years in the NHTSA data (top 28% most complained about).

On average one model year of the Marquis has 16 complaints (25 years in the data). This year has 12, below average.

What to check before buying

Other years of this model

Questions and answers

What are the most common problems with the 2004 Mercury Marquis?

Owner complaints to NHTSA most often mention: exterior lighting, steering, electrical system. Total complaints: 12. The most frequent symptoms in complaint texts: headlights and tail lights (58%), rust, corrosion (8%), steering or power steering problems (8%).

How many service bulletins (TSB) were issued for the 2004 Mercury Marquis?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2004 Mercury Marquis from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2004 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.