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EquipmentPart report

2003 Mercury Mountaineer Equipment Problems

Complaints
3about this part
Share
2%of 152 total for the year
Median mileage
78,898miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the equipment of the 2003 Mercury Mountaineer, 2% of the 152 complaints for this model year. Where a mileage was given, the median is 78,898 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Purchased the 2003 Mercury Mountaineer in 2007. We only drive the car locally for school and work and within 30 days of purchase, the car would not go into reverse. Was told the transmission was slipping and made the dealership/warranty pay for $1600 repair. Since then the check engine light comes on every 3 months. We get check fuel cap message, replaced that twice (last one from actual ford dealership) because they told us it wasn't the original from the car. …”

NHTSA complaint #10319097, filed 2010-03, 78,898 miles

“2003 Mercury Mountaineer transmission made a clunking sound, slid backwards and forwards while shifting into reverse. A/c blower motor made a humming sound. While driving the motor would misfire. While driving the consumer noticed that the dash light went out. The consumer attempted to correct the problem by turning the lighting switch. When the switch was turned the dash light came on but the headlights went out. The consumer's indicated that they sometimes hear popping sounds while driving, which seems to be of an electrical nature.”

NHTSA complaint #10169065, filed 2006-09

“To this date the following problems are present: gas gauge sticks, air bag warning light comes on and off, driver's side door rattles and knocks, driver's side window taps, driver's side window grinds while moving up and down, clock and radio do not light up or work when start vehicle, sun roof rattles and knocks, wind gets caught between roof and headliner which creates a loud vibration, the passenger side window also rattles and knocks, there is a loud rhythmic chirp toward rear of vehicle, heating and cooling controls squeal when turning on or switching vent settings, driver's seat feels…”

NHTSA complaint #10043237, filed 2003-10

Related service bulletins

Equipment: other model years

YearComplaintsShare of year
200811%
200622%
200522%
200431%
200332%
2002133%
200115%
200065%
199964%
199863%
199772%

Other parts of the 2003 Mercury Mountaineer

Body and structure
59 complaints
Transmission and drivetrain
42 complaints
Electrical system
11 complaints
Brakes
10 complaints
Engine cooling
10 complaints
Suspension
10 complaints
Air bags
9 complaints
Vehicle speed control
9 complaints
Fuel system
7 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Latches, locks and linkages
6 complaints
Other or unknown
6 complaints

← All problems reported for the 2003 Mercury Mountaineer

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology