mkaresh

We have updated reliability stats for the Boxster that include owner experiences through September 30, 2011.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004: 44, better than average, small sample size

2003: 53, better than average

2002: 135, about average

2001: 97, better than average

2000: 120, about average

1999: 71, better than average, small sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

For the years where we have enough data for these:

2001: 51, 11

Porsche Boxster Lemon-odds and Nada-odds

Important note: these cars are only driven an average of 5,500 miles a year, about half as much as the average car. No adjustment has been made for this.

Six IMS failures were reported for the 2010 calendar year, most of them for 2004-2005 model year cars (with the 2005 being a 987 rather than a 986).

No IMS failures have been reported for cars 2006 and newer.

No IMS failures have been reported for any model year since the beginning of 2011, with over 200 owners of 1999-2005 cars participating.

Rear main seal and air/oil separator repairs are far more common.

Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in February and May. With more participants we could provide more precise information and cover all model years.

To see how competitors compare, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

We have updated reliability stats for the Boxster and Cayman that include owner experiences through September 30, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004: 50, better than average, small sample size

2003: 46, better than average

2002: 67, better than average

2001: 80, better than average

2000: 44, better than average

1999: 117, worse than average

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the

past year and those that required 3+ trips to the repair shop.

For the year where we have enough data for these:

2001: 44, < 1

Important note: these cars are only driven an average of 5,500 miles a year, about half as much as the average car. No adjustment has been made for this.

No IMS failures have been reported for cars 2006 and newer.

No IMS failures have been reported for any model year since the beginning of 2011, with over 200 owners of 1999-2005 cars participating.

Rear main seal and air/oil separator repairs remain far more common.

Thank you, once again, to everyone who has been helping. We'll have further updates in February and May. With more owners involved we could provide more precise information.

To see how competitors compare, and to sign up to help:

Porsche Boxster reliability ratings and comparisons

ep3_lol

Great website. Didn't look around too much, but later I will see if I can sign up. I do about 20k miles/year in my Boxster, that average needs all the help it can get

mkaresh

We have updated reliability stats for the Boxster and Cayman that include owner experiences through December 31, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004: 43, low, small sample size

2003: 44, low

2002: 65, low

2001: 45, low

2000: 40, low

1999: 103, moderate

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

For the years where we have enough data for these:

2001: 64, < 1

Important note: these cars are only driven an average of 5,500 miles a year, about half as much as the average car. No adjustment has been made for this.

Six IMS failures were reported for the 2010 calendar year, most of them for 2004-2005 model year cars (with the 2005 being a 987 rather than a 986).

No IMS failures have been reported for cars 2006 and newer.

No IMS failures have been reported for any model year since the beginning of 2011, with over 200 owners of 1999-2005 cars participating.

We did have one leaking IMS bearing reported recently.

Rear main seal and air/oil separator repairs remain far more common.

Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in May and August. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through March 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 52, low, small sample size
2003 Boxster: 48, low
2002 Boxster: 64, low
2001 Boxster: 46, low
2000 Boxster: 23, low
1999 Boxster: 105, moderate

Still no reports of IMS failures since the beginning of 2011. We'll have further updates in August and in November.

For the details, including the descriptions of reported repairs, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through June 30, 2013. (Another source is about 14 months behind.)

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 40, low, small sample size
2003 Boxster: 43, low
2002 Boxster: 63, low
2001 Boxster: 49, low
2000 Boxster: 37, low
1999 Boxster: 71, low

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 62, < 1

We'll have further updates in November and February.

To view competitors' scores and descriptions of reported repairs, and to sign up to help:

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through September 30, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 42, low, small sample size
2003 Boxster: 60, low
2002 Boxster: 62, low
2001 Boxster: 56, low
2000 Boxster: 30, low
1999 Boxster: 42, low

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 60, < 1

We'll have further updates in February and in May. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through December 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 47, low, small sample size
2003 Boxster: 52, low
2002 Boxster: 85, moderate, small sample size
2001 Boxster: 57, low
2000 Boxster: 39, low
1999 Boxster: 24, low, small sample size

We have had one report in the past two years of an IMS bearing failure, to a car that had the bearing upgraded when its clutch was changed.

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 65, 3

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

To see the repairs behind these stats, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

Our reliability stats for the Boxster now include owner experiences through March 31, 2014, making them nearly a year ahead of other sources.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 35, low, small sample size
2003 Boxster: 60, low
2002 Boxster: 96, moderate, small sample size
2001 Boxster: 54, low
2000 Boxster: 48, low
1999 Boxster: 11, low, small sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 63, 3

Thank you, once again, everyone who has been helping. Next update in August.

For a deeper dive, including the stats for other cars and repair descriptions, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through June 30, 2014 (making them about 14 months ahead of some others).

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 61, low, small sample size
2003 Boxster: 73, low
2002 Boxster: 87, moderate, small sample size
2001 Boxster: 64, low
2000 Boxster: 41, low
1999 Boxster: 24, low, small sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 59, 3

Like most sports cars, Boxsters tend to be driven about half as many miles per year as the average car.

Next updates in November and in February. The more owners participate, the more comprehensive and precise these will be.

For repair descriptions, the stats of other cars, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

GVA-SFO

Hello Mkaresh,
If you are interested : 2001 Boxster S : Fuel pump at 62'000 miles.
I understood that the years (time) is mostly the problem, (..not the miles) for such failure.

PS: I did a preventive IMSB (LM Pro, dual row kit) at around 61'500 miles.

mkaresh

Thanks. This might be informative to people reading the thread. For the stats we can only use information entered through the structured survey process.

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through September 30, 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 42, low, small sample size
2003 Boxster: 53, low
2002 Boxster: 68, low, small sample size
2001 Boxster: 61, low
2000 Boxster: 45, low
1999 Boxster: 32, low, small sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 63, 6

To view the repairs behind these numbers, check the stats for other cars, and sign up to help improve this information (next update in February):

Porsche Boxster reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the Boxster to include owner experiences through the end of 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2004 Boxster: 44, low, small sample size
2003 Boxster: 54, low
2002 Boxster: 36, low
2001 Boxster: 65, low
2000 Boxster: 52, low
1999 Boxster: 33, low, small sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 59, 8

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

For the details, including how competitors compare, and to sign up to help improve this information:

Porsche Boxster reliability ratings and comparisons

mkaresh

So, how have these cars been doing lately?

Our reliability stats for the Boxster and Cayman now include owner experiences through March 31, 2015. (Others are nearly a year behind.)

In terms of repair trips per 100 cars per year ("low" is best):

2004 Boxster: 40, low, small sample size
2003 Boxster: 65, low
2002 Boxster: 31, low
2001 Boxster: 70, low
2000 Boxster: 64, low

Plus, the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2001 Boxster: 50, 8

Next updates in August and November. Additional participants always helpful, especially for the 2004.

For repair descriptions, the stats for other cars, and to sign up to help improve this information:

Porsche Boxster reliability