2005 Porsche Boxster Engine Problems
- Complaints
- 3about this part
- Share
- 19%of 16 total for the year
- Median mileage
- 90,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2005 Porsche Boxster, 19% of the 16 complaints for this model year. Where a mileage was given, the median is 90,000 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.
“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. …”
NHTSA complaint #11307839, filed 2020-02, 128,000 miles“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.”
NHTSA complaint #10525254, filed 2013-07, 90,000 miles“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. …”
NHTSA complaint #10598063, filed 2014-06, 34,000 milesRelated service bulletins
- 11037816Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are…
- 11037813Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are…
- 11037812Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are…
- 11037808Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils…
- 11035916Jul 22, 2026Allocation of Approved Engine Oils MY 2027 (13/26)
- 11034777Jun 25, 2026Overview of Approved Porsche C20 Engine Oils (20/26)
- 11034776Jun 25, 2026Overview of Approved Porsche C30 Engine Oils (19/26)
- 11034775Jun 25, 2026Overview of Approved Porsche C40 Engine Oils (21/26)
- 11034774Jun 25, 2026Overview of Approved Porsche A40 Engine Oils (15/26)
- 11034773Jun 25, 2026Overview of Approved Porsche C30 Engine Oils (16/26)
Engine: other model years
Other parts of the 2005 Porsche Boxster
8 complaintsTransmission and drivetrain
3 complaintsAir bags
1 complaintsBrakes
1 complaintsElectrical system
1 complaintsEquipment
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2005 Porsche Boxster
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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