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BMW 3-Series vs. BMW Z3 Reliability Comparisons

You won't find BMW 3-Series or BMW Z3 reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the BMW 3-Series and the BMW Z3 truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track BMW 3-Series and BMW Z3 reliability as the cars age. Others tell you how reliable the BMW 3-Series and the BMW Z3 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 BMW 3-Series and the BMW Z3 have been recently.

BMW 3-Series Reliability vs. BMW Z3 Reliability: BMW 3-Series Reliability vs. BMW Z3 Reliability: -1
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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 BMW 3-Series / M3   18 3-Series / M3s, 2.6 months of data per 3-Series / M3, average 2700 miles

* Small sample size.
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2014 BMW 3-Series 71 3-Series, 7.2 months of data per 3-Series, average 7100 miles

Includes 4-Series.
33
40% 40% Fewest Trips Most Trips
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2013 BMW 3-Series 4dr 81 3-Series 4drs, 9.4 months of data per 3-Series 4dr, average 16900 miles27
30% 30% Fewest Trips Most Trips
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2012 BMW 3-Series 2dr and wagon   16 3-Series 2dr and wagons, 9.7 months of data per 3-Series 2dr and wagon, average 21900 miles

* Small sample size.
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2012 BMW 3-Series sedan 28 3-Series sedans, 8.0 months of data per 3-Series sedan, average 22700 miles

First year for F30 3-Series sedan.
43
50% 50% Fewest Trips Most Trips
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2011 BMW M3   22 M3s, 9.1 months of data per M3, average 35900 miles

* Small sample size.
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2011 BMW 335 41 335s, 8.5 months of data per 335, average 38200 miles

Average odometer reading much lower for the M3.
52
60% 60% Fewest Trips Most Trips
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2011 BMW 328 106 328s, 8.5 months of data per 328, average 36300 miles

Average odometer reading much lower for the M3.
53
60% 60% Fewest Trips Most Trips
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2010 BMW 328 26 328s, 10.0 months of data per 328, average 50600 miles51
50% 50% Fewest Trips Most Trips
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2010 BMW 335   14 335s, 9.6 months of data per 335, average 47100 miles

* Very small sample size.
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2009 BMW 328 51 328s, 8.7 months of data per 328, average 54500 miles

Average odometer reading much lower for the M3.
35
20% 20% Fewest Trips Most Trips
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2009 BMW 335   23 335s, 9.2 months of data per 335, average 48900 miles

* Small sample size.
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2009 BMW M3   14 M3s, 8.8 months of data per M3, average 39200 miles

* Very small sample size.
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2008 BMW M3 28 M3s, 9.8 months of data per M3, average 45200 miles

Average odometer reading much lower for the M3. Non-M repair frequency spiking, possibly because CPO warranty ending.
74
60% 60% Fewest Trips Most Trips
see reported repairs
2008 BMW 335 44 335s, 9.9 months of data per 335, average 62900 miles

Average odometer reading much lower for the M3. Non-M repair frequency spiking, possibly because CPO warranty ending.
77
70% 70% Fewest Trips Most Trips
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2008 BMW 328 33 328s, 9.7 months of data per 328, average 69100 miles

Average odometer reading much lower for the M3. Non-M repair frequency spiking, possibly because CPO warranty ending.
90
80% 80% Fewest Trips Most Trips
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2007 BMW 328 59 328s, 9.6 months of data per 328, average 75700 miles78
60% 60% Fewest Trips Most Trips
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2007 BMW 335 49 335s, 8.8 months of data per 335, average 76400 miles84
70% 70% Fewest Trips Most Trips
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2006 BMW 3-Series 2dr   20 3-Series 2drs, 9.9 months of data per 3-Series 2dr, average 67000 miles

* Small sample size.
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2006 BMW 3-Series 4dr 64 3-Series 4drs, 9.1 months of data per 3-Series 4dr, average 93100 miles

First year for the E90 4-door.
70
50% 50% Fewest Trips Most Trips
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2005 BMW M3   12 M3s, 9.8 months of data per M3, average 69400 miles

* Very small sample size.
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2005 BMW 3-Series 27 3-Series, 10.0 months of data per 3-Series, average 94100 miles

Average odometer reading much lower for the M3.
58
30% 30% Fewest Trips Most Trips
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2004 BMW 3-Series 60 3-Series, 8.7 months of data per 3-Series, average 108600 miles

Average odometer reading much lower for the M3.
78
40% 40% Fewest Trips Most Trips
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2004 BMW M3   14 M3s, 8.5 months of data per M3, average 100500 miles

* Very small sample size.
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2003 BMW M3   10 M3s, 7.5 months of data per M3, average 79700 miles

* Very small sample size.
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2003 BMW 3-Series 35 3-Series, 8.8 months of data per 3-Series, average 107000 miles

Average odometer reading much lower for the M3.
113
80% 80% Fewest Trips Most Trips
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2002 BMW M3   13 M3s, 7.9 months of data per M3, average 105200 miles

* Very small sample size.
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2002 BMW 3-Series 35 3-Series, 9.4 months of data per 3-Series, average 122900 miles

Average odometer reading much lower for the M3.
88
40% 40% Fewest Trips Most Trips
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2001 BMW 3-Series 42 3-Series, 8.7 months of data per 3-Series, average 139700 miles88
40% 40% Fewest Trips Most Trips
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2001 BMW Z3 31 Z3s, 10.2 months of data per Z3, average 81700 miles

Like other sports cars, low average odometer reading.
38
0% 0% Fewest Trips Most Trips
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2000 BMW 3-Series 28 3-Series, 8.1 months of data per 3-Series, average 142900 miles96
50% 50% Fewest Trips Most Trips
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2000 BMW Z3   20 Z3s, 10.1 months of data per Z3, average 84200 miles

* Small sample size.
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1999 BMW Z3   12 Z3s, 5.1 months of data per Z3, average 108500 miles

* Very small sample size.
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What People Are Saying about Reliability and the BMW 3-Series

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What Our Members Are Saying about the Reliability and Durability of the BMW 3-Series

BMW 3-Series Reliability and Durability: Pros
YearBody/PowertrainComment
2012 4dr Sedan turbocharged 240hp 2.0L I4
8-speed shiftable automatic RWD
I traded in a 2005 BMW with 92,000 miles on it, if the realiability of the old one is any indication to the experience I hope to have with the 2012, then I have little to nothing to worry about.
2009 0 My car has been very reliable. I got a cerfited pre owned so all things a free at dealer. If you are buying one, then get a cpo one. well worth it.
2009 0 My car has been very reliable. I got a cerfited pre owned so all things a free at dealer. If you are buying one, then get a cpo one. well worth it.
2008 4dr Sedan 230-horsepower 3.0L I6
6-speed manual RWD
The car has a BETTER THAN AVERAGE frequency of repair record with Consumer Reports.
2008 2dr Coupe 414-horsepower 4.0L V8
7-speed automated manual RWD
Not yet tested to a full extent on my M3 under review, bust as previous BMW owner I enjoyed minimal component failures after many years of ownership.
2008 2dr Coupe 230-horsepower 3.0L I6
6-speed shiftable automatic AWD
History is promising.
2008 2dr Coupe turbocharged 300hp 3.0L I6
6-speed shiftable automatic AWD
Historically, reliable
2008 2dr Hardtop conv. turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Have owned this car for 5 years; have had two replacement high pressure fuel pumps; replaced steering rack; new turbo gaskets (both turbos); replaced articulating hard top cables - all in the first 3 years and all under warranty! Nothing has gone wrong in the past two years so perhaps this was relatively new model growing pains.
2008 2dr Hardtop conv. turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Have owned this car for 5 years; have had two replacement high pressure fuel pumps; replaced steering rack; new turbo gaskets (both turbos); replaced articulating hard top cables - all in the first 3 years and all under warranty! Nothing has gone wrong in the past two years so perhaps this was relatively new model growing pains.
2007 4dr Sedan turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Been superb to date
BMW 3-Series Reliability and Durability: Cons
YearBody/PowertrainComment
2011 2dr Hardtop conv. 230-horsepower 3.0L I6
6-speed shiftable automatic RWD
Glovebox won't open.
2010 4dr Sedan 230-horsepower 3.0L I6
6-speed shiftable automatic AWD
I'm a little nervous about repair costs and frequency. I keep reading about 4-figure repair bills, but there are others who say they've done well with just normal maintenance. Consumer Reports gives the 2010 328i a lot of red dots which is a goo
2010 4dr Sedan 230-horsepower 3.0L I6
6-speed shiftable automatic AWD
Small things keep breaking or failing. The engine and drivetrain are solid though.
2009 4dr Sedan 414-horsepower 4.0L V8
6-speed manual RWD
More prone to breakdowns than the Japanese competition.
2009 4dr Sedan turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic RWD
Always a glitch or two.
2009 2dr Coupe turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Fuel pump, oil cooler, and run flat tire issues on the 335i turned me off. Will likely be covered by warranty, but met multiple people who had week long+ repairs for these issues. After warranty, 1,200+ for each of these issues is apparently common.
2008 2dr Coupe 414-horsepower 4.0L V8
6-speed manual RWD
I have never had major problems with my BMW's, but I have never kept them out of warranty either. M cars are ridiculously expensive to repair. The only car company where the coolant is designed to outlast the radiator. When they break, they brea
2008 2dr Hardtop conv. turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Possibly expensive repair track record when 4-year warranty end
2008 4dr Sedan turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Does not require explanation.
2008 4dr Wagon 230-horsepower 3.0L I6
6-speed shiftable automatic AWD
Average is not good enough for a $40K+ car.
 

What Our Members Are Saying about the Reliability and Durability of the BMW Z3

BMW Z3 Reliability and Durability: Pros
YearBody/PowertrainComment
2000 2dr Convertible 170-horsepower 2.5L I6
4-speed automatic RWD
Car of the year in 2000. Best Consumer Reports value for 5 years in a row for its class. Model Rating - Overall 4 stars Trim Rating - Overall 5 stars Appearance 5 stars Comfort 5 stars Performance 5 stars Reliability 5 stars
2000 2dr Convertible 193-horsepower 2.8L I6
4-speed automatic RWD
I got over a 150K miles and only minor items less then $500 dollars on repairs other then tires and brakes
BMW Z3 Reliability and Durability: Cons
YearBody/PowertrainComment
2000 2dr Convertible 193-horsepower 2.8L I6
5-speed manual RWD
I experienced continued problems with the A/C system and the engine cooling system. Also, the rag top did not hold up well and developed a leak.