2005 Porsche Boxster Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2005 Porsche Boxster, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine1155.0%
- Powertrain (other)315.0%
- Electrical15.0%
- Fuel system15.0%
- Other / unspecified15.0%
- Airbags15.0%
- Visibility15.0%
- Brakes15.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
WHILE I WAS DRIVING ON A CITY STREET AT ABOUT 30 MPH, MY 2005 BOXSTER STARTED MAKING A RATTLING NOISE, THEN COMPLETELY DIED IN THE MIDDLE OF AN INTERSECTION ON A CITY STREET WITHOUT ANY PRIOR WARNING. AT THE SAME TIME, ALL OF THE WARNING LIGHTS CAME ON. I WAS ABLE TO PUT THE CAR IN NEUTRAL AND COAST TO THE SIDE OF THE ROAD. CAR WAS TOWED TO MY MECHANIC, WHO STATES IT IS AN INTERMEDIATE SHAFT BEARING ISSUE/FAILURE. HAD I BEEN DRIVING ON THE FREEWAY AT HIGH SPEED, I MOST LIKELY WOULD HAVE BEEN KILLED. I AM THE ORIGINAL OWNER OF THE CAR, IT HAS 128,000 MILES AND RECOMMENDED MAINTENANCE IS ALL UP TO DATE.
TL* THE CONTACT OWNS A 2005 PORSCHE BOXSTER. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 55 MPH, THE ENGINE MADE A LOUD NOISE, VARIOUS WARNING LAMPS ILLUMINATED ON THE INSTRUMENT PANEL AND THE VEHICLE STALLED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE MOTOR NEEDED TO BE REPLACED. THE INDEPENDENT MECHANIC SUGGESTED THAT THE VEHICLE BE TAKEN TO AN AUTHORIZED PORSCHE DEALER FOR REPAIRS. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHO VERIFIED THE FAILURE AND STATED THAT THE MOTOR HAD SELF DESTRUCTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS TO BE INSPECTED AND REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,000. UPDATED 8/12/14*CN UPDATED 8/23/2017*CT
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2005 PORSCHE BOXSTER. THE CONTACT WAS UNABLE TO DRIVE THE VEHICLE BECAUSE THE IGNITION KEY WAS LOCKED INSIDE THE IGNITION. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO DIAGNOSED THAT THE TRANSMISSION FAILED AND NEEDED A CABLE ADJUSTMENT WITH THE TRANSMISSION AND THE KEY. THE CONTACT STATED THAT THE FAILURE WAS DIRECTLY RELATED TO NHTSA CAMPAIGN NUMBER: 03V004000 (POWER TRAIN); HOWEVER, THE VEHICLE WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 47,000.
PULLING AWAY FROM A GREEN LIGHT IN TRAFFIC, THE ENGINE STARTED TO UPSHIFT INTO A HIGHER GEAR MUCH SOONER THAN NORMAL AND THE CAR FELT DOWN ON POWER. THE ENGINE SOUNDED AS THOUGH IT WAS RUNNING ON FEWER THAN NORMAL CYLINDERS. I STOPPED THE VEHICLE IMMEDIATELY & HAD IT TOWED TO A PORSCHE SPECIALIST. THEY TOLD ME IT WAS AN IMS (INTERMEDIATE SHAFT) BEARING FAILURE AND THAT IS WAS A KNOWN PROBLEM WITH M96 AND M97 PORSCHE ENGINES. MINE BEING AN M96 ENGINE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
THIS IS THE SECOND TIME, AFTER A RAIN STORM, OUR 2005 PORSHE BOXSTER WOULD NOT START. DEALER SAYS IT IS WATER IN THE ELECTRICAL HARNESS. IS THIS A DESIGN FLAW? *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
TL*THE CONTACT 2005 PORSCHE BOXSTER. THE CONTACT STATED THAT WHILE THE VEHICLE WAS PARKED IN THE GARAGE HE SMELLED AN UNUSUAL ODOR. THE CONTACT DROVE THE VEHICLE OUT OF THE GARAGE AND NOTICED FUEL LEAKING. THE CONTACT CALLED THE MANUFACTURER WHO ADVISED HIM NOT TO DRIVE THE VEHICLE AND IT WAS TOWED TO A DEALER. THE DEALER REPLACED THE FUEL LINE. THE CONTACT STATED THE VEHICLE COULD HAVE CAUGHT ON FIRE WHILE DRIVING. THE FAILURE MILEAGE WAS 51,000. AFTER FURTHER INVESTIGATION THE PROBLEM WAS CAUSED BY SQUIRRELS EATING/ CLAWING THE FUEL LINE. IT WAS NOT A FAILURE OF THE PART. UPDATED 10/19/2011 *LN *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2005 PORSCHE BOXSTER. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 55 MPH, THE ENGINE MADE A LOUD NOISE, VARIOUS WARNING LAMPS ILLUMINATED ON THE INSTRUMENT PANEL AND THE VEHICLE STALLED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE MOTOR NEEDED TO BE REPLACED. THE INDEPENDENT MECHANIC SUGGESTED THAT THE VEHICLE BE TAKEN TO AN AUTHORIZED PORSCHE DEALER FOR REPAIRS. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHO VERIFIED THE FAILURE AND STATED THAT THE MOTOR HAD SELF DESTRUCTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS TO BE INSPECTED AND REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,000. UPDATED 8/12/14*CN UPDATED 8/23/2017*CT
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
2005 PORSCHE BOXSTER S, IS A 2 SEATER THAT LACKS ANY MEANS TO DISARM FRONT/SIDE PASSENGER AIRBAGS. DANGEROUS CONDITION FOR CHILD PASSENGER GIVEN THE LACK OF A BACK SEAT OR ALTERNATIVE SEATING. CERTAINTLY FORESEEABLE THAT CHILDREN WILL RIDE IN SUCH A VEHICLE. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
Foam insulation blows out of windshield defroster vents. It is much worse when heat and fan are turned on. The windshield does not properly defrost and passengers are deluged with particulates and large chunks of black foam. This is a hazard to both breathing and visibility. Porsche is aware of the problem. Dealer says owners view as too expensive to fix. A recent Porsche Club of America newsletter article discusses the problem as a hazard and a paid advertisement pushes an alternative repair.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2005 PORSCHE BOXSTER. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 55 MPH, THE ENGINE MADE A LOUD NOISE, VARIOUS WARNING LAMPS ILLUMINATED ON THE INSTRUMENT PANEL AND THE VEHICLE STALLED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE MOTOR NEEDED TO BE REPLACED. THE INDEPENDENT MECHANIC SUGGESTED THAT THE VEHICLE BE TAKEN TO AN AUTHORIZED PORSCHE DEALER FOR REPAIRS. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHO VERIFIED THE FAILURE AND STATED THAT THE MOTOR HAD SELF DESTRUCTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS TO BE INSPECTED AND REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,000. UPDATED 8/12/14*CN UPDATED 8/23/2017*CT
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .