2003 Porsche BOXSTER problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
12 owner complaints analyzed
2 distinct recall campaigns
19,000 mi median reported failure mileage
Scope: 2003 model year. Data snapshot: . 10 complaints include usable failure mileage.
Most common problems
Power Train is the most frequently named component, appearing in 2 of 12 complaints (16.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 2 | 16.7% |
| Steering behavior | 2 | 16.7% |
| Braking behavior | 1 | 8.3% |
| Electrical and battery issues | 1 | 8.3% |
| Fuel system concerns | 1 | 8.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Power Train | 2 |
| Air Bags | 1 |
| Engine | 1 |
| Engine And Engine Cooling | 1 |
| Fuel/Propulsion System | 1 |
| Power Train:Manual Transmission | 1 |
| Seats | 1 |
| Service Brakes | 1 |
Power Train: 2; Air Bags: 1; Engine: 1; Engine And Engine Cooling: 1; Fuel/Propulsion System: 1; Power Train:Manual Transmission: 1; Seats: 1; Service Brakes: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 6 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 6; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 2; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (6). 2 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2003 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2019 | 1 |
| 2023 | 1 |
| 2026 | 2 |
2003: 1; 2005: 1; 2006: 1; 2010: 1; 2012: 1; 2013: 1; 2014: 1; 2016: 1; 2019: 1; 2023: 1; 2026: 2
Pattern summary
Power Train leads the component reports. Transmission and shifting appears in 2 complaint narratives. Steering behavior appears in 2 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10118005 · 2005-04-17 (April 17, 2005)
SECOND GEAR IN THE TRANSMISSION BROKE. *AK
Owner-reported narrative. 12,000 miles reported. Look up ODI 10118005 at NHTSA ↗
Owner report 11530804 · 2023-07-07 (July 7, 2023)
The contact owns a 2003 Porsche Boxster. The contact stated that upon starting the vehicle, the indicator lights on the gear shifter for the park(P) and the four (4) position was flashing. In addition, while driving at various speeds, the transmission failed to shift into fifth gear and the vehicle would enter LIMP Mode. The contact had taken the vehicle to a dealer on two separate occasions and was informed that the gear selector switch was sticky due to the vehicle not being driven. The vehicle was repaired after the failures; however, the fa…
Owner-reported narrative. 12,669 miles reported. Look up ODI 11530804 at NHTSA ↗
Owner report 10039287 · 2003-09-22 (September 22, 2003)
POWER STEERING FAILURE, FLUID LEAK. *JB
Owner-reported narrative. 8,000 miles reported. Look up ODI 10039287 at NHTSA ↗
Owner report 10458148 · 2012-05-11 (May 11, 2012)
A STRANGE THING HAPPENED AS MY WIFE AND I WERE DRIVING HOME AT NIGHT IN OUR '03 BOXSTER. THE SEATBACK ON THE PASSENGER SIDE MYSTERIOUSLY BEGAN ROTATING FORWARD, ALL EFFORTS TO STOP IT USING BODY FORCE FAILED. MY WIFE WAS CRUSHED INTO THE GLOVE BOX BY THE TIME I WAS ABLE TO PULL OVER AND STOP. SHE COULD NOT REACH THE DOOR HANDLE AND WAS BARELY ABLE TO EXTRICATE HERSELF AFTER I OPENED THE DOOR FROM THE OUTSIDE. THE SEAT MOTOR HAD ROTATED THE SEATBACK FORWARD TO A POSITION OF APPROXIMATELY 45 PAST VERTICAL BY THE TIME IT STOPPED. WE LATER DISCOVE…
Owner-reported narrative. 77,312 miles reported. Look up ODI 10458148 at NHTSA ↗
Owner report 10625772 · 2014-08-16 (August 16, 2014)
REAR BRAKES (BOTH SIDES) BEGAN APPLYING THEMSELVES WITH NO DRIVER INPUT, LOCKING UP WITHIN ABOUT 5 SECONDS. *TR
Owner-reported narrative. 95,166 miles reported. Look up ODI 10625772 at NHTSA ↗
Owner report 10926541 · 2016-11-16 (November 16, 2016)
TOOK MY PORSCHE BOXSTER TO THE LOCAL PORSCHE DEALER FOR AN OIL CHANGE. THEY CALLED ME BACK AND SAID MY CAR HAD A GASOLINE FUEL LEAK AND NEEDED A REPLACEMENT FUEL LEVEL SENSOR IT WAS CRACKED AND LEAKING FUEL.. THE SERVICE ORDER AT PICKUP SAID MECHANIC NOTED FUEL DRIPPING FROM GAS TANK...NOTED LEAKING FROM CRACKS IN THE SENDING UNIT WHERE THE PRESSURIZED FUEL OUTLET IS, REPLACED SENDING UNIT AND SEAL, ALSO NOTED ELECTRICAL CONNECTOR SEAL SWOLLEN FROM FUEL CONTAMINATION. I ASKED THE SERVICE MANAGER IF THIS HAD BEEN REPORTED TO THE NHTSA AND HE SAI…
Owner-reported narrative. 119,774 miles reported. Look up ODI 10926541 at NHTSA ↗