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Engine coolingPart report

2003 Subaru Impreza Engine cooling Problems

Complaints
4about this part
Share
6%of 62 total for the year
Median mileage
85,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine cooling of the 2003 Subaru Impreza, 6% of the 62 complaints for this model year. Where a mileage was given, the median is 85,500 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.

“At 15,000km past warranty, I submitted my car for service and was told the engine was leaking fluids, required new head gaskets, new transmission mounts and sway bar bushings. Barrie Subaru did not show much interest in the amount of work required on a vehicle that had been on the road for less than 3 years.”

NHTSA complaint #10201321, filed 2007-08, 115,000 miles

“Karen quinn of Subaru of america assured me that I can drive my 2003 Subaru Impreza with check engine light on for a period of two weeks without any concern. As a result, the vehicle stalled the check engine light was blinking and I was in danger. At a later time she falsified the records and had no recollection of such conversation.”

NHTSA complaint #10043325, filed 2003-10, 17,001 miles

“Outside air temperature was moderate(75f), but engine was cold. Upon engine start strong smell of gasoline in cabin and in engine bay around the passenger side intake manifold.”

NHTSA complaint #10534734, filed 2013-08, 142,800 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201921%
201511%
201321%
201210%
201135%
201037%
200977%
2008148%
200757%
2006713%
200534%
200455%
200346%
2002197%
200037%
199915%
1998723%
199713%
1996210%
199549%

Other parts of the 2003 Subaru Impreza

Fuel system
26 complaints
Brakes
14 complaints
Air bags
4 complaints
Body and structure
3 complaints
Suspension
3 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Engine
1 complaints
Equipment
1 complaints
Exterior lighting
1 complaints
Seat belts
1 complaints
Seats
1 complaints
Tires
1 complaints

← All problems reported for the 2003 Subaru Impreza

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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