Reliability, what owners report, and what it costs to keep.
AVOIR's read: running costs are the problem rather than the car itself.
Owners have filed 28 complaints with NHTSA about the 1999 Porsche Boxster, and it carries 3 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Engine and engine cooling | 15 | 54% |
| Air bags | 4 | 14% |
| Seat belts | 2 | 7% |
| Engine and engine cooling | 1 | 4% |
| Air bags | 1 | 4% |
| Electrical system | 1 | 4% |
| Electrical system | 1 | 4% |
| Tires | 1 | 4% |
| Service brakes | 1 | 4% |
| Structure | 1 | 4% |
Verbatim from NHTSA complaint records, trimmed for length.
MISFIRES DURING WARM UP, AFTER WARM UP THE ENGINE RUNS SMOOTH WITH HIGH RPM OF 1200 TO 1300. I HAVE TO TAP THE ACCELERATOR PAD TO LOWER THE RPM,AFTER COUPLE OF SECONDS THE RPM GOES BACK UP. WHEN IT REACHES 190 DEGREES RP
NHTSA complaint: Engine and engine cooling
THIS LOW-MILEAGE VEHICLE EXPERIENCED A CATASTROPHIC ENGINE FAILURE AT FREEWAY SPEED. THE VEHICLE WAS CRUISING ON LEVEL FREEWAY WHEN THE ENGINE LOST POWER AND WHITE SMOKE BEGAN POURING OUT OF THE EXHAUST. THE ENGINE DIE
NHTSA complaint: Engine and engine cooling
THE AIRBAG LIGHT HAS COME ON FOR THE THIRD TIME. THE PROBLEM IS IN A SENSOR IN THE SEATBELT. EACH TIME IT IS THE SAME PROBLEM AND PORSCHE WANTS ME TO SPEND $550 TO REPLACE THE UNIT WITH THE FOURTH SENSOR. I HAVE DECLINE
NHTSA complaint: Air bags
PORSCHE BOXTER AIRBAG ( SRS) MALFUNCTION. SPONTANEOUS DEPLOYMENT. MONDAY, OCT.11 2010 APPROX. 2:00. VEHICLE HAD BEEN UNUSED FOR 4 WEEKS. I ATTEMPTED TO START THE VEH. BATTERY WAS ALMOST DEAD. NO ACTION FROM STARTER. VE
NHTSA complaint: Air bags
TL*THE CONTACT OWNS A 1999 PORSCHE BOXSTER. THE CONTACT HAD MASSIVE ENGINE FAILURE WHILE DRIVING 20 MPH AND THE CRANK SHAFT BROKE. THE VEHICLE WAS TOWED TO A MECHANIC AND THE ENGINE WAS REPLACED. THE MANUFACTURER ADVISED
NHTSA complaint: Engine and engine cooling
AIRBAG LIGHT COMES ON IN 1999 PORSCHE BOXSTER. THIS SEEMS TO BE A COMMON AND RECURRING PROBLEM WITH PORSCHE BOXSTERS. IT WAS TAKEN TO A REPAIR SHOP WHO DIAGNOSED THE PROBLEM AS A SEAT BUCKLE PROBLEM. THEY INDICATED THAT
NHTSA complaint: Air bags
IT'S WELL DOCUMENTED THAT EARLY PRODUCTION PORSCHE BOXSTERS HAD A SIGNIFICANT NUMBER OF ENGINE FAILURES DUE TO CRACKED OR SLIPPED CYLINDER LINERS. THERE WAS NEVER A RECALL BUT PORSCHE DID REPLACE FAILED ENGINES UNDER WA
NHTSA complaint: Engine and engine cooling
AIRBAG WARNING LAMP STAYING ON DUE TO A POORLY DESIGNED SENSOR SYSTEM THAT RELIES ON SEAT BELT BUCKLE AND GROUNDING SYSTEM ELECTRICAL RESISTANCES BEING INCREDIBLY STABLE OVER TIME. THIS IS A DESIGN FLAW THAT HAS BEEN ADD
NHTSA complaint: Electrical system
NHTSA lists 3 recall campaigns for the 1999 Porsche Boxster. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
CERTAIN 2-DOOR CONVERTIBLE PASSENGER VEHICLES EQUIPPED WITH THE TIPTRONIC (AUTOMATIC) TRANSMISSION MAY HAVE BEEN PRODUCED WITH AN INCORRECTLY ADJUSTED KEY-LOCK-CABLE DOWN TO THE SHIFT SELECTOR. IF THE KEY-LOCK-CABLE IS NOT ADJUSTED CORRECTLY, IT IS POSSIBLE THAT THE IGNITION KEY WILL SNAG UPON BEIN
Risk: IF THE SELECTOR LEVER IS THEN SHIFTED FROM POSITION "P" TO POSITION "R, N OR D" WITH THE VEHICLE PARKED, AND IF THE PARKING BRAKE IS NOT ON, THE VHEICLE WILL NOT BE SECURED FROM INADVERTENLY ROLLING A
Fix: DEALERS WILL INSPECT THE CABLE ADJUSTMENT AND, REGARDLESS OF THE RESULTS OF THIS INSPECTION, THE KEY-LOCK-CABLE MUST ALSO BE ADJUSTED. OWNER NOTIFICATION BEGAN JULY 15, 2003. OWNERS WHO TAKE THEIR V
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES
Risk: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Fix: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES
Risk: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Fix: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
| Reliability raw | 86 | excellent |
|---|---|---|
| Longevity est. | 83 | excellent |
| Maintenance | 54 | average |
| Depreciation | 69 | good |
| Performance | 55 | average |
| Efficiency | 30 | below average |
Percentile ranks against other sports & two-seaters in the catalog.
What stands behind each score for this car:
Owners have filed 28 complaints with NHTSA for this model-year, and engine and engine cooling is the most reported area with 15 of them (54%). There are 3 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 86/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 83/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 1999 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: skip unless cheap, because running costs are the problem rather than the car itself. Its overall ownership score is 68/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.