Porsche Boxster reliability -- let's get better info

[mkaresh]

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

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

2008: 28, better than average

2007: 75, about average, might be high because final year of standard warranty

2006: 39, better than average

2005: 72, about average

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:

2008: 67, < 1

2006: 65, < 1

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 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 December 31, 2011.

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

2008: 31, better than average

2007: 72, about average, might be high because final year of standard warranty

2006: 49, better than average

2005: 56, better than average

2004: 16, better than average, small sample size

2003: 42, better than average

2002: 97, better than average

2001: 95, better than average

2000: 100, about average

1999: 60, better 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 years where we have enough data for these:

2008: 72, < 1

2006: 71, 4

2005: 49, 4

2001: 42, 4

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 remain far more common.

Thank you, once again, to everyone who has been helping. We'll have further updates in May and August. 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

Porsche Boxster repair odds

[mkaresh]

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

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

2008: 42, about average, stricter recalibrated scale

2007: 34, better than average

2006: 45, better than average

2005: 33, better than average

2004: 29, better than average, small sample size

2003: 38, better than average

2002: 65, better than average

2001: 78, better than average

2000: 70, better than average

1999: 110, about 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 years where we have enough data for these:

2008: 72, 6

2006: 65, 4

2005: 73, 3

2002: 59, 8

2001: 58, 3

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 remain far more common.

We'll have further updates in November and February. With more owners involved 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:

2008: 42, about average, stricter recalibrated scale

2007: 29, better than average

2006: 38, better than average

2005: 34, better than average

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 years where we have enough data for these:

2008: 68, < 1

2006: 74, 4

2005: 78, 3

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.

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.

Update: one case of a leaking but not failed IMS reported after September 30th.

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

We'll have further updates in February and May. We'd love to provide more precise stats and cover more model years--just a matter of getting more owners involved.

To see how competitors compare, 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 March 31, 2013.

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

2008 Boxster: 38, low
2007 Boxster: 43, low
2006 Boxster: 21, low
2005 Boxster: 21, low
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

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:

2008 Boxster: 69, < 1
2006 Boxster: 83, < 1
2005 Boxster: 85, < 1
2001 Boxster: 60, < 1

Still no reports of IMS failures since the beginning of 2011.

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

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]

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):

2014 Boxster and Cayman: 17, low
2013 Boxster: 13, low
2008 Boxster and Cayman: 23, low
2007 Boxster and Cayman: 53, low
2006 Boxster and Cayman: 29, low
2005 Boxster: 38, low
2004 Boxster: 40, low, small sample size
2003 Boxster: 65, low
2002 Boxster: 31, low
2001 Boxster: 70, low
2000 Boxster: 64, low
1999 Boxster: 63, low, small sample size

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

2014 Boxster and Cayman: 79, < 1
2013 Boxster: 92, < 1
2008 Boxster and Cayman: 82, < 1
2007 Boxster and Cayman: 58, < 1
2006 Boxster and Cayman: 73, < 1
2005 Boxster: 73, < 1
2001 Boxster: 50, 8

No stat for a model year? Then we very much need more participants for it. Same for those with small sample size notes. Next updates in August and November.

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

Porsche Boxster reliability

[jdlmodelt]

replaced brakes due to wear at 80k miles, replaced passenger seat belt. that was it for the past 2 years of ownership.