2003 Porsche Boxster S Engine cooling Problems
- Complaints
- 4about this part
- Share
- 57%of 7 total for the year
- Median mileage
- 39,750miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2003 Porsche Boxster S, 57% of the 7 complaints for this model year. Where a mileage was given, the median is 39,750 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.
“I have a 2003 Porsche Boxster S with 32,000mi on it. On the 8th of march, the engine failed with an intermediate shaft bearing failure requiring the replacement of the engine. Porsche cars north america are not helpful. Such a catastrophic failure of the engine in my opinion is dangerous and should be taken more seriously by pcna considering the number of cases that are out there.”
NHTSA complaint #10319298, filed 2010-03, 32,000 miles“My engine failed due to a part called the intermediate shaft. The car is a 2003 Porsche, Boxster S with 47,000. This problem is well documented on line and appears to be a manufacturing problem. The dealership I went to, knew right away about the failure as they see at least 1 per month. When this part fails, the remedy is a new (or used engine). There is no way to know of this failure until it happens. I replaced my engine and it cost $12,000. …”
NHTSA complaint #10344995, filed 2010-07, 47,500 miles“I have had many problems with a 2003 Boxster S I purchased in may 2003 from mckenna Porsche in norwalk, ca. Some of the major problems in the last 2 years include: 1) condensation in oil filler area; 2) oil leaks in 2 locations; 3) worn drive belt; 4) clutch causing grinding noise; 5) iginition switch & key didn't work; air conditioning unit didn't cool; 6) stereo system didn't work. Mckenna has repaired/replaced all items to date except the clutch. Mckenna advised clucth problem is my responsibility due to wear and cost is $1700. The vehilce has 19000 miles. …”
NHTSA complaint #10128917, filed 2005-07, 60 miles“On saturday, may 16th this boxster suffered engine failure while traveling at ~ 30 MPH. The engine failed with no prior warning. The initial indication was a loud and distracting flapping noise that sounded like something had been picked up on the car's undercarriage. This was followed within a moment by shutdown of the engine and loss of power steering. We feel fortunate that this engine failed at relatively low speed in light traffic, so that no accident or injuries occurred. …”
NHTSA complaint #10273686, filed 2009-06, 59,679 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 4 | 57% |
Other parts of the 2003 Porsche Boxster S
1 complaintsElectrical system
1 complaintsLatches, locks and linkages
1 complaintsSteering
1 complaintsBody and structure
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2003 Porsche Boxster S
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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