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Old December 13th, 2009, 05:37 PM   #21
RaisedOnPorsches
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I just wanted to say to mkaresh thank you for offering this and other automotive communities your service at no cost. I greatly appreciate it and even if this information gathering doesn't provide the indisputable resolution to the IMS failure rate it is still very much worth while.

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Old December 15th, 2009, 08:40 AM   #22
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You're certainly welcome. Thank you for helping out.
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Old January 14th, 2010, 09:59 AM   #23
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Updated results next month. Thanks to excellent participation by Boxster owners we'll have full results for the 1999, 2000, 2001, and (probably) 2005 and partial results for the 2002.

Ideally we'd have full results and some additional stats for all years. Just a matter of getting enough owners involved.

Not yet signed up? Details here:

Car reliability research
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Old February 18th, 2010, 09:20 AM   #24
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We have updated reliability stats for the Boxster and Cayman that include owner experiences through December 31, 2009. In terms of repair trips per 100 cars per year:

2008: 67, small sample size

2005: 103

2003: 125, small sample size

2002: 167, small sample size

2001: 125

2000: 129

1999: 133

With more data this time around, we're seeing more consistent results from year to year. Only the 2002 doesn't fit with the others.

The 2002 and 2003, both with small sample sizes, are worse than average. The other years, including those with decent sample sizes, are about average.

I'd like to report specifically on the IMS failure rate, but we will need more participants to do this. A small number of IMS failures have been reported.

A big thank you, once again, to everyone who has been helping. We'll have further updates, possibly including additional model years depending on the number of participants, in May and August.

Porsche Boxster reliability comparisons
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Old March 24th, 2010, 09:14 AM   #25
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And now 360 owners signed up. We'll be previewing the next set of results to participants in just a few weeks. More remain needed to cover all model years.

Not yet signed up? Details here:

Car reliability research
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Old March 24th, 2010, 09:17 AM   #26
offshore
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Do you want us to report something done as preventative maintenance such as changing the OEM IMS bearing to the LN Engineering ceramic IMS bearing?
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Old March 24th, 2010, 09:32 AM   #27
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Thank you for asking. Yes, this can and should be reported. There's a place on the survey to indicate that it's PM. As such it will be posted to your repair history, where it might help inform others of this option, but won't affect the repair frequency stat, since PM isn't considered a repair.
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Old April 27th, 2010, 09:05 AM   #28
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To provide an additional benefit, I recently enhanced the related repair history survey so that it can (optionally) be used as a personal car maintenance record for cars 2000 MY and newer.

As always, more participants would be helpful. Updated Car Reliability Survey results for many, but not yet all, model years in May.

Car reliability research
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Old June 3rd, 2010, 07:39 AM   #29
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We have updated reliability stats for the Boxster and Cayman that include owner experiences through March 31, 2010. In terms of repair trips per 100 cars per year:

2008: 31, better than average

2006: 14, better than average, small sample size

2005: 71, about average

2003: 95, about average, small sample size

2002: 120, about average

2001: 129, about average

2000: 101, about average

1999: 129, about average

Fairly consistent results from year to year, with a clear improvement from 2005 to 2006. The results for the 2000 and 2006 might be a bit lower than they should be, judging from the results for other model years.

A big thank you, once again, to everyone who has been helping. We'll have further updates, possibly including additional model years depending on the number of participants, in August and November.

Porsche Boxster reliability comparisons

Last edited by mkaresh; August 17th, 2010 at 11:17 AM.
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Old July 10th, 2010, 07:50 AM   #30
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This coming week we'll start previewing the next set of results to participants. The preview results will be updated as responses come in.

How many model years will we be able to cover this time around? This depends on the number of owners that participate.

To help provide the best possible information on your year:

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