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      03-28-2008, 12:59 PM   #1
mkaresh
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BMW 1-Series reliability

I wanted more up-to-date auto reliability information that included actual repair rates. So in late 2005 I started conducting reliability research at TrueDelta.com. TrueDelta reports absolute repair rates that make the differences between cars much clearer. Results are updated four times a year, so it's possible to track cars closely as they age.

Thanks to the help of this forum's members, we had a quick result for the 1, and have been continuing to update the results quarterly. Additioinal participants are always helpful--we especially need more for the 2009.

Participants simply report repairs the month after they occur on a one-page survey. When there are no repairs, they simply report an approximate odometer reading four times a year, at the end of each quarter.

To encourage participation, participants receive full access to all results, not just those for the 1, free of charge.

For the details, and to sign up to help out:

Car reliability research

Last edited by mkaresh; 03-02-2009 at 01:37 PM..
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      05-05-2008, 07:11 PM   #2
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signed up, i think. lol
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      05-20-2008, 09:06 AM   #3
mkaresh
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Thanks, I appreciate it. Many people would like reliability info on the 1, and this will help me provide it.

The follow-up email goes out today, and this is the last time this month I'll include new members in the survey.

16 owners have signed up so far. If a few more could be included in this survey, that would make a full result in August more likely.

Vehicle reliability research
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      05-20-2008, 12:00 PM   #4
Robert
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I would support the effort if you guys are non-profit.
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      05-20-2008, 12:15 PM   #5
mkaresh
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We've been thoroughly without profit so far...

The site is not technically a non-profit, though, and my wife won't let me keep doing this unless it eventually provides some income. Essentially, I figure that if I provide an outstanding resource the income will eventually take care of itself. Membership will always be free for those who participate.

FWIW, all "non-profit" means is that there are no shareholders. The employees of non-profits still earn salaries, sometimes high salaries.
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      05-20-2008, 12:28 PM   #6
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Quote:
Originally Posted by mkaresh View Post
We've been thoroughly without profit so far...

The site is not technically a non-profit, though, and my wife won't let me keep doing this unless it eventually provides some income. Essentially, I figure that if I provide an outstanding resource the income will eventually take care of itself. Membership will always be free for those who participate.

FWIW, all "non-profit" means is that there are no shareholders. The employees of non-profits still earn salaries, sometimes high salaries.
+1, if only people knew about true "non-profit" organizations lol
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      06-29-2008, 01:24 PM   #7
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Quote:
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FWIW, all "non-profit" means is that there are no shareholders. The employees of non-profits still earn salaries, sometimes high salaries.
LOL, Goodwill Industries comes to mind...
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      07-24-2008, 12:21 PM   #8
mkaresh
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It now appears we'll have an initial result in November, with updates every three months after that.

We will need more participants for that November result to not be aseterisked for a marginal sample size.

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      07-24-2008, 01:07 PM   #9
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added myself. sounds like potentially a good resource in the future.
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      07-24-2008, 01:15 PM   #10
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Will sign up once I get the car in 2 weeks.
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      08-21-2008, 01:42 PM   #11
mkaresh
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Thanks, I appreciate it.

The 1 didn't make it into this month's results, but could make it into the November set.

A few more participants would help.

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      08-21-2008, 05:57 PM   #12
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Quote:
Originally Posted by mkaresh View Post
Thanks, I appreciate it.

The 1 didn't make it into this month's results, but could make it into the November set.

A few more participants would help.

Vehicle reliability research

Just signed up...
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      08-22-2008, 02:05 PM   #13
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At work I am able to view 1addicts, but bimmerfest is blocked, so I wasn't able to post this last night. Many already know this, but I think those who are coming to BMW from other brands and expect a perfectly running car with no maintenance cost for 150k will be disappointed. Check out this link (http://www.bimmerfest.com/forums/sho...d.php?t=195771) for those who may have second thoughts at the prospect of maintenance. Specifically the second half of number 2 says it all. I know this thread was about reliability, but some confuse any maintenance with an unreliable car. I love BMWs and they are great, but like a woman worthy of keeping for the long term, requires lots of love and care.
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      08-22-2008, 02:57 PM   #14
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Quote:
Originally Posted by robert View Post
I would support the effort if you guys are non-profit.
What's the difference to you? :iono:
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      10-17-2008, 12:21 PM   #15
mkaresh
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The 1-Series will be in the November results, but with a marginal sample size.

With more participants, we could provide more precise results.

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      10-17-2008, 03:57 PM   #16
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just signed up.
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      10-17-2008, 04:09 PM   #17
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Same
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      11-21-2008, 11:19 AM   #18
mkaresh
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We now have an initial result. Not quite enough responses for a full result--that will come in February, assuming a few more owners participate.

Based on the current marginal sample size, the 1-Series appears to have a worse than average repair rate, just under 100 successful repair trips per 100 cars per year. This is puzzling, since the same stat for the 2008 3-Series is 40. No common problem area is evident in responses. Given the much lower number for the related 3, and the small sample size, I suspect that the February result will be lower (i.e. fewer repairs).

The more participants we have, the more precise that result will be. So hopefully more owners will join and participate.

Vehicle reliability research

Last edited by mkaresh; 03-02-2009 at 01:40 PM..
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      11-21-2008, 01:57 PM   #19
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signed up
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      01-06-2009, 09:36 AM   #20
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I just signed up. I noticed it asked me which country I lived in so I put Belgium. But then at the end it said it was US Market only. I have a 123d so will I be able to participate?
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      01-06-2009, 10:16 AM   #21
mkaresh
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For the main reliability survey you can be from anywhere. There's a universal bodystyle / powertrain form on which you'll be able to specify that it's a diesel.

For the other surveys, it's necessary to specify the specific powertrain, and I have mostly U.S. market powertrains in the list so far. I have added diesels to the powertrain list for some other BMWs, though, and can add this one since there are just a few model years to deal with.

Where can I find a complete list of European powertrains for the car?
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      01-06-2009, 11:20 AM   #22
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www.bmw.co.uk has all the same models as us (except in RHD) and their website is in English :smile:
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