Reliability research -- seeking more Mazda3s

We have updated results for the Mazda3 to include owner experiences through March 31, 2010. In terms of repair trips per 100 cars per year:

2010 Mazda3: 15, better than average

2010 MS3: 40, about average, very small sample size

2008.5-
2009 Mazda3: 39, about average, common problem with the audio system

2008.5-
2009 MS3: 53, about average, small sample size, see note above

2008 Mazda3: 49, about average, might have some 2008.5s with the troublesome audio system in this sample

2008 MS3: 55, about average, again see note above

2007 Mazda3: 21, better than average

2007 MS3: 73, about average--only in its first model year is the MS3 significantly more troublesome than the regular Mazda3

2006: 43, better than average

2005: 40, better than average

2004: 67, 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.

The percentage with no repairs is about 81 for the 2005, 73 for the 2006, 79 for the 2007, 69 for the 2008, and 83 for the 2009, while the percentage of lemons is about 4 for the 2005, 3 for the 2006, less than one for the 2007, 8 for the 2008, and 3 for the 2009. These stats require more data, so we don't yet have them for other model years.

Nada-odds and Lemon-odds car reliability stats

A big thank you, once again, to Antoine, this forum, and everyone who has been helping. We'll have further updates in August and November. With more participants, we could provide more precise information and cover all model years.

Mazda Mazda3 reliability comparisons
 
We have updated results for the Mazda3 and MazdaSpeed3 to include owner experiences through June 30, 2010.

Other sources of car reliability information won't cover the more recent months until the summer or even fall of next year.

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

2010 Mazda3: 23, better than average

2010 MS3: 25, better than average, small sample size

2008.5-
2009 Mazda3: 34, better than average

2008.5-
2009 MS3: 51, about average, small sample size

2008 Mazda3: 40, better than average

2008 MS3: 65, about average

2007 Mazda3: 17, better than average

2007 MS3: 63, about average

2006: 46, better than average

2005: 28, better than average

2004: 69, 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.

The percentage with no repairs is about 85 for the 2005, 69 for the 2006, 87 for the 2007, 77 for the 2008, 72 for the 2009, and 73 for the 2010, while the percentage of lemons is about 6 for the 2008.5-2009 and less than one for the other years.

Nada-odds and Lemon-odds car reliability stats

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

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

Mazda Mazda3 reliability comparisons
 
Starting this month we have a new question to measure, as objectively as possible, the severity of a problem. Many people have been asking for reliability stats that weight problems by how severe they are, and once we have enough responses with the revised survey we'll start providing this.

Also, updated reliability stats this month.

As always, the more owners participate, the better the information we can provide to everyone.

Car reliability research
 
We have updated results for the Mazda3 and MazdaSpeed3 to include owner experiences through September 30, 2010. Other sources of car reliability information won't cover the months since April until the summer or even fall of next year.

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

2010 Mazda3: 26, better than average

2010 MS3: 33, better than average

2008.5-
2009 Mazda3: 27, better than average

2008.5-
2009 MS3: 31, better than average

2008 Mazda3: 42, better than average

2008 MS3: 65, about average

2007 Mazda3: 25, better than average

2007 MS3: 48, better than average

2006: 34, better than average

2005: 22, better than average

2004: 77, 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.

The percentage with no repairs is about 88 for the 2005, 79 for the 2006, 82 for the 2007, 68 for the 2008, 76 for the 2009, and 74 for the 2010, while the percentage of lemons is less than one for all years.

We don't have these stats for the MS3 yet because they require a larger sample size.

Mazda3 Lemon-odds and Nada-odds

Thank you, once again, to Antoine, 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.

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

Mazda Mazda3 reliability ratings and comparisons
 
We have updated results for the Mazda3 and MazdaSpeed3 to include owner experiences through December 31, 2010. Other sources of car reliability information won't cover the months since April until the summer or even fall of this year.
Repair frequencies, in terms of repair trips per 100 cars per year:

2008.5-
2009 Mazda3: 45, about average

2008.5-
2009 MS3: 45, about average

2008 Mazda3: 47, about average

2008 MS3: 53, about average

2007 Mazda3: 21, better than average

2007 MS3: 45, better than average

2006: 34, better than average

2005: 32, better than average

2004: 102, 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.

These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:

2009: 68, 3

2008: 66, < 1

2007: 85, < 1

2006: 75, < 1

Mazda3 Lemon-odds and Nada-odds

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.

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

Mazda Mazda3 reliability ratings and comparisons
 
We have updated our car reliability stats for the Mazda3 and MazdaSpeed3 to include owner experiences through March 31, 2011.
Repair frequencies, in terms of repair trips per 100 cars per year:

2008.5-
2009 Mazda3: 44, about average

2008.5-
2009 MS3: 42, about average

2008 Mazda3: 59, about average

2008 MS3: 55, about average

2007 Mazda3: 20, better than average

2007 MS3: 57, about average

2006: 42, better than average

2005: 40, better than average

2004: 98, 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.

These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:

2009: 70, 4

2008: 61, 3

2007: 83, < 1

2006: 67, 3

2005: 67, 4

Mazda3 Lemon-odds and Nada-odds

We'll have further updates in August and November. With more participants, we could provide more precise information.

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

Mazda Mazda3 reliability ratings and comparisons
 
We have updated results for the Mazda3 and MazdaSpeed3 to include owner experiences through June 30, 2011.

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

2008.5-
2009 Mazda3: 41, about average

2008.5-
2009 MS3: 43, about average

2008 Mazda3: 56, about average

2008 MS3: 41, better than average

2007 Mazda3: 21, better than average

2007 MS3: 55, about average

2006: 41, better than average

2005: 53, better than average

2004: 100, 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.
These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:

2009: 67, 4

2008: 65, 3

2007: 82, 2

2006: 66, < 1

2005: 53, 4

Mazda3 Lemon-odds and Nada-odds

We'll have further updates in November and February. With more participants, we could provide more precise information.

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

Mazda Mazda3 reliability ratings and comparisons
 
We have updated our reliability stats for the Mazda3 and MazdaSpeed3 (on our redesigned site) to include owner experiences through September 30, 2011.

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

2008.5-
2009 Mazda3: 52, about average

2008.5-
2009 MS3: 59, about average

2008 Mazda3: 53, about average

2008 MS3: 30, better than average

2007 Mazda3: 30, better than average

2007 MS3: 63, about average

2006: 47, better than average

2005: 69, about average

2004: 79, 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.

These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:


2009: 63, 4

2008: 63, 3

2007: 83, 2

2006: 63, < 1

2005: 42, < 1

Mazda3 Lemon-odds and Nada-odds

Thank you, once again, to Antoine, this forum, and everyone who has been helping. We'll have further updates later this month and in May. With more participants, we could provide more precise information.

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

Mazda Mazda3 reliability ratings and comparisons
 
We have updated our reliability stats for the Mazda3 and MazdaSpeed3 to include owner experiences through September 30, 2012.


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


2008.5-
2009 Mazda3: 26, better than average


2008.5-
2009 MS3: 52, about average


2008 Mazda3: 39, about average


2008 MS3: 55, about average, small sample size


2007 Mazda3: 51, about average


2007 MS3: 74, about average, small sample size


2006: 68, about average


2005: 72, about average


2004: 62, 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.


These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:


2009: 83, < 1


2008: 73, < 1


2007: 64, 2


2006: 61, < 1


2005: 50, 7


2004: 53, 4


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


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


Mazda Mazda3 reliability ratings and comparisons
 
We have updated our reliability stats for the Mazda3 and MazdaSpeed3 to include owner experiences through December 31, 2012.

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

2008.5-
2009 Mazda3: 27, low

2008.5-
2009 MS3: 49, moderate

2008 Mazda3: 29, low

2008 MS3: 41, low, small sample size

2007 Mazda3: 51, moderate

2007 MS3: 75, moderate, small sample size

2006: 75, moderate

2005: 55, moderate

2004: 52, 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.

These stats require more data. We received enough responses for the following years, the regular Mazda3 in all cases:

2009: 82, < 1

2008: 78, < 1

2007: 58, 2

2006: 57, 8

2005: 60, 4

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

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

Mazda3 reliability ratings and comparisons
 
Last edited:
We've updated our reliability stats for the Mazda3 to include owner experiences through March 31, 2013.

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

2012 Mazda3: 7, low
2012 MazdaSpeed3: 0, low, small sample size
2011 Mazda3: 13, low
2010 Mazda3: 16, low
2010 MazdaSpeed3: 16, low
2009 Mazda3: 25, low
2009 MazdaSpeed3: 44, moderate
2008 Mazda3: 33, low
2008 MazdaSpeed3: 37, low, small sample size
2007 Mazda3: 58, moderate
2007 MazdaSpeed3: 66, moderate, small sample size
2006 Mazda3: 67, moderate
2005 Mazda3: 73, moderate
2004 Mazda3: 60, 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:

2012 Mazda3: 93, < 1
2011 Mazda3: 85, < 1
2010 Mazda3: 84, < 1
2009 Mazda3: 80, < 1
2008 Mazda3: 73, < 1
2007 Mazda3: 57, < 1
2006 Mazda3: 61, 3
2005 Mazda3: 50, 4

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:

Mazda Mazda3 reliability ratings and comparisons
 
We've updated our reliability stats for the Mazda3 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:

2013 Mazda3: 0, low, small sample size
2012 Mazda3: 7, low
2012 MazdaSpeed3: 0, low, small sample size
2011 Mazda3: 14, low
2011 MazdaSpeed3: 0, low, very small sample size
2010 Mazda3: 15, low
2010 MazdaSpeed3: 5, low
2009 Mazda3: 33, low
2009 MazdaSpeed3: 50, moderate, small sample size
2008 Mazda3: 43, low
2008 MazdaSpeed3: 19, low, small sample size
2007 Mazda3: 54, moderate
2007 MazdaSpeed3: 47, moderate, small sample size
2006 Mazda3: 64, moderate
2005 Mazda3: 78, moderate
2004 Mazda3: 59, 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:

2012 Mazda3: 92, < 1
2011 Mazda3: 83, < 1
2010 Mazda3: 83, 1
2009 Mazda3: 71, < 1
2008 Mazda3: 65, < 1
2007 Mazda3: 58, < 1
2006 Mazda3: 54, 3
2005 Mazda3: 40, 4

We'll have further updates in November and February.

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

Mazda Mazda3 reliability ratings and comparisons
 
We've updated our reliability stats for the Mazda3 to include owner experiences through September 30, 2013.

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

2013 Mazda3: 0, low
2012 Mazda3: 13, low
2012 MazdaSpeed3: 0, low, small sample size
2011 Mazda3: 10, low
2010 Mazda3: 19, low
2010 MazdaSpeed3: 11, low, small sample size
2009 Mazda3: 45, moderate
2009 MazdaSpeed3: 43, low, small sample size
2008 Mazda3: 39, low
2008 MazdaSpeed3: 29, low, small sample size
2007 Mazda3: 60, moderate
2007 MazdaSpeed3: 48, low, small sample size
2006 Mazda3: 76, moderate
2005 Mazda3: 74, moderate
2004 Mazda3: 58, 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:

2012 Mazda3: 90, < 1
2011 Mazda3: 89, < 1
2010 Mazda3: 81, < 1
2009 Mazda3: 71, 3
2008 Mazda3: 68, < 1
2007 Mazda3: 54, 2
2006 Mazda3: 50, 6
2005 Mazda3: 52, 4

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:

Mazda Mazda3 reliability ratings and comparisons
 
We've updated our reliability stats for the Mazda3 to include owner experiences through December 31, 2013.

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

2013 Mazda3: 0, low
2012 Mazda3: 11, low
2012 MazdaSpeed3: 15, low, small sample size
2011 Mazda3: 16, low
2010 Mazda3: 23, low
2010 MazdaSpeed3: 18, low, small sample size
2009 Mazda3: 39, low
2009 MazdaSpeed3: 32, low, small sample size
2008 Mazda3: 45, moderate
2008 MazdaSpeed3: 38, low, small sample size
2007 Mazda3: 59, moderate
2007 MazdaSpeed3: 35, low, small sample size
2006 Mazda3: 68, moderate
2005 Mazda3: 89, moderate
2004 Mazda3: 59, 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:

2012 Mazda3: 90, < 1
2011 Mazda3: 85, < 1
2010 Mazda3: 81, < 1
2009 Mazda3: 66, < 1
2008 Mazda3: 63, < 1
2007 Mazda3: 55, 2
2006 Mazda3: 52, 6
2005 Mazda3: 43, 4

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:

Mazda Mazda3 reliability ratings and comparisons
 
Our reliability stats for the Mazda3 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:

2014 Mazda3: 10, low
2013 Mazda3: 0, low
2012 Mazda3: 14, low
2012 MazdaSpeed3: 15, low, small sample size
2011 Mazda3: 18, low
2010 Mazda3: 21, low
2010 MazdaSpeed3: 20, low, small sample size
2009 Mazda3: 41, low
2009 MazdaSpeed3: 30, low, small sample size
2008 Mazda3: 38, low
2008 MazdaSpeed3: 29, low, small sample size
2007 Mazda3: 46, low
2007 MazdaSpeed3: 89, high, small sample size
2006 Mazda3: 61, moderate
2005 Mazda3: 82, moderate
2004 Mazda3: 60, 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:

2012 Mazda3: 90, < 1
2011 Mazda3: 83, < 1
2010 Mazda3: 84, < 1
2009 Mazda3: 80, 4
2008 Mazda3: 68, < 1
2007 Mazda3: 58, < 1
2006 Mazda3: 51, 3
2005 Mazda3: 47, 7

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:

Mazda Mazda3 reliability ratings and comparisons
 
We've updated our reliability stats for the Mazda3 to include owner experiences through June 30, 2014.

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

2014 Mazda3: 5, low
2013 Mazda3: 6, low
2012 Mazda3: 14, low
2012 MazdaSpeed3: 23, low, small sample size
2011 Mazda3: 24, low
2010 Mazda3: 15, low
2010 MazdaSpeed3: 27, low, small sample size
2009 Mazda3: 24, low
2009 MazdaSpeed3: 14, low, small sample size
2008 Mazda3: 27, low
2008 MazdaSpeed3: 31, low, very small sample size
2007 Mazda3: 48, low
2007 MazdaSpeed3: 98, high, small sample size
2006 Mazda3: 58, moderate
2005 Mazda3: 67, moderate
2004 Mazda3: 64, 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:

2013 Mazda3: 92, < 1
2012 Mazda3: 89, < 1
2011 Mazda3: 79, < 1
2010 Mazda3: 86, < 1
2009 Mazda3: 80, 4
2008 Mazda3: 73, < 1
2007 Mazda3: 56, < 1
2006 Mazda3: 63, 3
2005 Mazda3: 55, 4

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:

Mazda Mazda3 reliability ratings and comparisons
 
As an FYI, Consumer Reports gets over 1 million completed surveys from car owners. Their data base is massive, to say the least. Of course, they have rated Mazda as the 3rd most reliable car company in the world. (at least among those who sell their vehicles in the US)
 
If I liked how CR conducts their survey, I would never have started this one.

Some things to realize:

--CR asks people to report problems "they considered serious," a very subjective question that introduces a lot of unnecessary and undesirable variance; ask the wrong question, and it doesn't matter how many people you ask, you can still get the wrong answer

--CR's ranking looks only at the three most recent model years; as much as I love Mazdas, I wish they avoided rusting much better than they do; this happens well after the third year, so their ranking isn't harmed

--CR's data is always old; ours averages about 10 months ahead of theirs
 
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