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Year Make/Model Repair Frequencysuccessful repair trips per 100 cars per year Compared to all models for the same year  
2015 Acura MDX   23 MDXs, 7.2 months of data per MDX, average 5600 miles

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2014 Acura MDX 57 MDXs, 8.1 months of data per MDX, average 12400 miles

Redesigned. Voice control system problem in early cars addressed with revised head unit. Also multiple reports of a grinding noise caused by misaligned drive belt pulleys, a non-functioning rain sensor for wipers, and squeaks.
41
50% 50% Fewest Trips Most Trips
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2013 Acura MDX   12 MDXs, 9.6 months of data per MDX, average 23300 miles

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2013 BMW X5 31 X5s, 9.1 months of data per X5, average 24200 miles30
30% 30% Fewest Trips Most Trips
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2012 Acura MDX 41 MDXs, 9.6 months of data per MDX, average 36300 miles30
30% 30% Fewest Trips Most Trips
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2012 BMW X5 29 X5s, 8.0 months of data per X5, average 32000 miles

All of the reported engine repairs involve the diesel.
41
40% 40% Fewest Trips Most Trips
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2011 Acura MDX 28 MDXs, 8.3 months of data per MDX, average 48300 miles36
30% 30% Fewest Trips Most Trips
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2011 BMW X5 38 X5s, 7.0 months of data per X5, average 50200 miles

Refreshed for this model year. Most of the reported engine repairs involve the diesel, which has a higher repair frequency.
81
90% 90% Fewest Trips Most Trips
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2010 Acura MDX 33 MDXs, 9.3 months of data per MDX, average 58600 miles12
0% 0% Fewest Trips Most Trips
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2010 BMW X5   10 X5s, 10.5 months of data per X5, average 73600 miles

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2009 Acura MDX 25 MDXs, 10.5 months of data per MDX, average 68000 miles41
20% 20% Fewest Trips Most Trips
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2008 Acura MDX 48 MDXs, 8.7 months of data per MDX, average 92800 miles63
50% 50% Fewest Trips Most Trips
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2008 BMW X5   13 X5s, 8.1 months of data per X5, average 87300 miles

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2007 Acura MDX 48 MDXs, 8.6 months of data per MDX, average 91600 miles

First model year of second-generation MDX.
58
40% 40% Fewest Trips Most Trips
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2007 BMW X5   12 X5s, 8.6 months of data per X5, average 91200 miles

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2006 Acura MDX 25 MDXs, 8.9 months of data per MDX, average 110800 miles65
40% 40% Fewest Trips Most Trips
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2006 BMW X5   13 X5s, 6.2 months of data per X5, average 78000 miles

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2005 Acura MDX 27 MDXs, 8.8 months of data per MDX, average 141100 miles30
0% 0% Fewest Trips Most Trips
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2005 BMW X5   12 X5s, 8.8 months of data per X5, average 99400 miles

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2004 Acura MDX 29 MDXs, 9.1 months of data per MDX, average 152800 miles

Refreshed for this model year. Past common problem with engine mounts.
86
50% 50% Fewest Trips Most Trips
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2003 Acura MDX   21 MDXs, 8.6 months of data per MDX, average 153900 miles

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2002 Acura MDX   16 MDXs, 10.0 months of data per MDX, average 153900 miles

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2002 BMW X5   10 X5s, 7.2 months of data per X5, average 167600 miles

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2001 Acura MDX   18 MDXs, 8.8 months of data per MDX, average 152000 miles

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See reliability results for all Acura and BMW vehicles.

Acura MDX vs. BMW X5 Reliability Comparisons

You won't find Acura MDX or BMW X5 reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the Acura MDX and the BMW X5 truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track Acura MDX and BMW X5 reliability as the cars age. Others tell you how reliable the Acura MDX and the BMW X5 were a year ago, when the cars were a year younger and had 12,000 fewer miles on them. Only TrueDelta tells you how reliable the Acura MDX and the BMW X5 have been recently.

What People Are Saying about Reliability and the Acura MDX

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What Our Members Are Saying about the Reliability and Durability of the Acura MDX

Acura MDX Reliability and Durability: Pros
YearBody/PowertrainComment
2012 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
We've owned several Acura's over the past 13 years, this is the first SUV. The past has proven their reliability as long as you maintain them. I mean the basic prescribed routine care every 5,000 miles. I've driven many different American made vehicles supplied by my Company over the span of the last 35 years and none can compare with how Acura's hold up or perform, even with the same routine care and still offer the resale value that they do.
2009 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
I am not worried about breaking down or about expensive repairs. This is a vehicle I can keep with no worries.
2008 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
Initial fit is not there
2008 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
expecting it to be above average.
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
No real reliability or durability issues in 15K miles.
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
Hve friends who have owned MDX for over 10 years and had no issues
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
brand reputation, online reviews and ranking
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
My last Acura Legend went 262 thousand miles with nothing but oil changes and tires. That is reliability!
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
i have owned several acura passenger vehicles and the reliability is unbeatable in my opinion. as it turned out i did have some front end thunks in my MDX. at no time did the dealer ever admit defeat (they all do that) and always made me feel welcome.
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
rated highly by Consumer reports
Acura MDX Reliability and Durability: Cons
YearBody/PowertrainComment
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
Multiple trips to shop
2007 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
Had to make 4 trips to the dealer for warranty issues in 18 months of ownership.
2003 4dr SUV 290-horsepower 3.5L V6
9-speed shiftable automatic AWD
This SUV is a dog! Engine mounts, transmission, AC, alternator, cooling fan have all failed catastrophically. I will not buy an Acura again
 

What Our Members Are Saying about the Reliability and Durability of the BMW X5

BMW X5 Reliability and Durability: Pros
YearBody/PowertrainComment
2008 4dr SUV turbocharged 300hp 3.0L I6
8-speed shiftable automatic AWD
german engineer
2002 4dr SUV turbocharged 445hp 4.4L V8
8-speed shiftable automatic AWD
It appears from others to be a safe and reliable car. If the engine holds up as well as my other I should have it a long time. It has 60,000 mile but looks and drives like new.
2002 4dr SUV turbocharged 315hp 3.0L I6
8-speed shiftable automatic AWD
Way too many repairs. The list is endless culminating in a required engine rebuild that I refuse. Donate to a church.
BMW X5 Reliability and Durability: Cons
YearBody/PowertrainComment
2003 4dr SUV turbocharged 445hp 4.4L V8
8-speed shiftable automatic AWD
Got in mechanical trouble all the time~~~
2001 4dr SUV turbocharged 445hp 4.4L V8
8-speed shiftable automatic AWD
The worst car I have ever owned. The transmission failed 4 days after the warranty was over - and the vehicle had less than 45,000 miles on it then.