mkaresh

Updated stats in a week or two will include the 2007.

The 2006 fell just a couple of responses short.

The goal: full results for all model years. Just a matter of getting enough M-Class owners involved. 201 so far.

mkaresh

We have an initial reliability stat for the 2007 M-Class based on owner experiences through March 31, 2010. With a reported repair frequency of 152 repair trips per 100 cars per year, it's worse than average. The sample size is small, so this result might not be accurate.

Thank you to 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.

Mercedes-Benz E-Class reliability comparisons

mkaresh

We'll have updated stats for the 2006 and 2007 next month. Both will be partial results.

To help provide full results for your year:

Car reliability research

mkaresh

We've updated results for the M-Class 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:

2007: 125, worse than average

2006: 98, about average

Very small sample sizes in both cases, so these results are not precise.

Thank you to everyone who has been helping. We'll have further updates in November and February. 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:

Mercedes-Benz M-Class reliability comparisons

mkaresh

Updated partial results for the 2006 and 2007 next month.

I'd like to have full results for all years--just a matter of getting enough owners involved.

To help make this happen:

Car reliability research

mkaresh

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 this month: updated reliability stats.

mkaresh

We've updated results for the M-Class to include owner experiences through September 30, 2010.

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

2007: 152, worse than average

2006: 117, worse than average

Very small sample sizes in both cases, so these results are not precise.

Thank you 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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

We've updated results for the M-Class to include owner experiences through December 31, 2010.

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

2007: 146, worse than average

2006: 88, about average

Small sample size for the 2007 and very small sample size for the 2006, which likely explains the difference between these results.

Between the two, the 2007 is based on nearly twice as much data so it's more likely to be accurate.

Thank you 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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

We've updated our car reliability stats for the M-Class to include owner experiences through March 31, 2011.

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

2007: 130, worse than average

2006: 106, about average

2000: 133, about average

Small sample size for the 2007 and very small sample sizes for the 2000 and 2006.

We'll have further updates in August and November. 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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the W164 M-Class to include owner experiences through June 30, 2011.

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

2008: 133, worse than average

2007: 144, worse than average

2006: 166, worse than average

Small sample size for the 2007 and very small sample sizes for the others, so these results are not precise. But they are consistent with one another this time around.

We'll have further updates in November and February. 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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the M-Class (on our redesigned site) to include owner experiences through December 31, 2011.

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

2008: 72, about average

2007: 118, worse than average

2006: 197, worse than average

2000: 135, about average

Small sample size for the 2007 and very small sample sizes for the others, so these our reliability stats are not precise. But they are consistent with one another.

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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

We've updated our reliability stats for the M-Class to include owner experiences through September 30, 2012.

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

2008: 77, worse than average

2007: 51, about average

Very small sample sizes, so these reliability stats are not precise.

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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

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

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

2012 M-Class: 79, high, very small sample size
2008 M-Class: 48, moderate, small sample size
2007 M-Class: 60, moderate, very small sample size
2006 M-Class: 43, low, very small sample size
2000 M-Class: 68, low, very small sample size

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

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

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

Updated stats later this month.

I'd love to provide more precise stats and cover all model years--just a matter of getting more people involved.

www.truedelta.com/join

mkaresh

We've updated our reliability stats for the M-Class to include owner experiences through June 30, 2013.

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

2008 M-Class: 36, low, small sample size
2007 M-Class: 47, moderate, very small sample size
2006 M-Class: 37, low, very small sample size
2000 M-Class: 73, low, very small sample size

We'll have further updates later this month and in February.

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

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

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

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

2008 M-Class: 71, moderate, small sample size
2007 M-Class: 65, moderate, small sample size
2006 M-Class: 51, low, very small sample size

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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

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

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

2009 M-Class: 74, high, very small sample size
2008 M-Class: 71, moderate, small sample size
2007 M-Class: 46, low, small sample size
2006 M-Class: 108, high, very small sample size

We'll have further updates in May and in August. With more participants, it's possible that much of the variation from year to year would go away.

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

Mercedes-Benz M-Class reliability ratings and comparisons

C230 Sport Coup

Pfft. Way worse than average. The balance shaft gear dissolves resulting in a 10K engine repair, the early 7 speed has issues, the intake manifolds have problems, the window switches fall apart, the interior electric door locks stop working, and the AC vents fall apart + more. OK, not exactly empirical data but...just sayin'. Wish my GF would dump this turkey.

mkaresh

For what it's worth, the current gen ML looks much better so far. So they're getting better.

Our reliability stats for the M-Class 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:

2009 M-Class: 90, high, very small sample size
2008 M-Class: 92, high, small sample size
2007 M-Class: 60, moderate, small sample size
2006 M-Class: 117, high, very small sample size

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:

Mercedes-Benz M-Class reliability ratings and comparisons

SQLGuy

Why is 2007 better than 2006 and 2008? Seems odd. Is this still within statistical variance for the sample sizes?

mkaresh

The most likely reason is the small sample sizes.

But we also sometimes see a bump for European cars at the six year mark, perhaps because CPO warranties are ending, followed by a dip after that point.

We've updated our reliability stats for the M-Class 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:

2013 M-Class: 23, low, small sample size
2012 M-Class: 39, moderate, very small sample size
2009 M-Class: 103, high, small sample size
2008 M-Class: 105, high, small sample size
2007 M-Class: 61, moderate, small sample size
2006 M-Class: 94, high, very small sample size
2000 M-Class: 133, high, very small sample size

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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

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

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

2009 M-Class: 92, high, very small sample size
2008 M-Class: 97, high, small sample size
2007 M-Class: 56, moderate, small sample size
2006 M-Class: 100, high, very small sample size

Additional participants would be very helpful. (I'd love to be able to drop the disclaimers and cover all model years.)

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):

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

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

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

2010 M-Class: 48, moderate, very small sample size
2009 M-Class: 87, high, very small sample size
2008 M-Class: 68, moderate, small sample size
2007 M-Class: 59, moderate, small sample size
2006 M-Class: 86, moderate, very small sample size

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:

Mercedes-Benz M-Class reliability ratings and comparisons

mkaresh

So, how have these cars been doing lately?

Our reliability stats for the M-Class 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):

2010 M-Class: 55, moderate, very small sample size
2009 M-Class: 89, high, very small sample size
2008 M-Class: 76, moderate, small sample size
2007 M-Class: 86, moderate, small sample size
2006 M-Class: 74, moderate, very small sample size

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

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

Mercedes-Benz M-Class reliability

mkaresh

Our reliability stats for the M-Class now cover the year ending June 30, 2015. Repair trips per 100 cars:

2010 M-Class: 49, moderate, very small sample size
2009 M-Class: 84, high, very small sample size
2008 M-Class: 76, moderate, small sample size
2007 M-Class: 97, high, small sample size
2006 M-Class: 122, high, very small sample size

With more owners involved, we could provide more precise stats and also cover the 2011.

For the descriptions of all reported repairs, results for other models, and to sign up to help improve this information:

Mercedes-Benz M-Class reliability ratings and comparisons