"How reliable is the 1999 Mercury Marquis?"

"Based on 31 NHTSA complaints, the 1999 Mercury Marquis has a median complaint mileage of 95052 miles. The most common issue is VEHICLE SPEED CONTROL."

"What are common problems with the 1999 Mercury Marquis?"

"The most frequently reported component in NHTSA complaints for the 1999 Mercury Marquis is VEHICLE SPEED CONTROL, accounting for a significant portion of the 31 total complaints filed."

1999 Mercury Marquis: Reliability Data

Source: NHTSA — 31 complaints

Total Complaints

95,052mi

Median Mileage

VEHICLE SPEED CONTROL

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

53,500 25th Percentile

95,052 Median Mileage

111,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

VEHICLE SPEED CONTROL

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC

STEERING:LINKAGES:TIE ROD ASSEMBLY

ELECTRICAL SYSTEM

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

SUSPENSION

VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR

AIR BAGS:FRONTAL

STRUCTURE:BODY:BUMPERS

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"VEHICLE EXPERIENCED A SUDDEN JERK TO THE LEFT WHILE DRIVING ON THE HIGHWAY AT APPROXIMATELY 55 MPH. WHICH ALMOST CAUSED THE VEHICLE TO RUN ANOTHER VEHICLE OFF THE ROAD ON THE RIGHT LANE. REASON UNKNOWN. VEHICLE HAVE BEEN INSPECTED AND SOME REPAIRS HAVE BEEN MADE, AND CODITION STILL OCCURS. *AK"

"THE INTERIOR REARVIEW MIRROR LOCATION INTERFERES WITH THE DRIVER'S VISIBILITY WHICH MAY CAUSE AN ACCIDENT. OCCUPANT SAID IT SHOULD BE MOVED UPWARDS. PELASE PROVIDE FURTHER INFORMATION. *AK"

"DRIVING ABOUT 5-10 MPH, THE VEHICLE HAD A LOW FRONTAL IMPACT IN WHICH THE OTHER VEHICLE HAD NO DAMAGES. UPON IMPACT, DRIVER'S AND THE PASSENGER'S AIR BAGS DID NOT DEPLOY, RESULTING IN INJURIES. PLEASE PROVIDE FURTHER INFORMATION AND VIN#. *AK"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

Where Are Complaints Coming From?

Top states by complaint count.

LA: 7 NC: 4 NY: 4 FL: 4 MD: 3 TX: 2 NJ: 2 MI: 2 CT: 1 OH: 1

Who Files Complaints?

58.1%

Original Owners

41.9%

Second+ Owners

Mercury Marquis — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1992	30	-	ENGINE AND ENGINE COOLING:ENGINE:GASOLINE	7
1993	25	-	AIR BAGS	3
1994	44	100,000	VISIBILITY:POWER WINDOW DEVICES AND CONTROLS	2
1995	26	-	FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY	0
1996	40	91,000	ENGINE AND ENGINE COOLING	3
1997	62	63,000	ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE	8
1998	40	75,000	SUSPENSION	1
2000	24	-	STRUCTURE:BODY	1
2001	27	57,902	ENGINE AND ENGINE COOLING	4
2003	42	42,377	EXTERIOR LIGHTING	4

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28