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BMW 5-Series vs. Mercedes-Benz E-Class Reliability Comparisons

You won't find BMW 5-Series or Mercedes-Benz E-Class reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the BMW 5-Series and the Mercedes-Benz E-Class truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track BMW 5-Series and Mercedes-Benz E-Class reliability as the cars age. Others tell you how reliable the BMW 5-Series and the Mercedes-Benz E-Class 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 5-Series and the Mercedes-Benz E-Class have been recently.

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Year Make/Model Repair Frequencysuccessful repair trips per 100 cars per year Compared to all models for the same year  
2013 BMW 5-Series 26 5-Series, 8.5 months of data per 5-Series, average 8400 miles22
20% Fewest Trips Most Trips
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2012 BMW 5-Series   19 5-Series, 10.3 months of data per 5-Series, average 17200 miles

* Small sample size.
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2011 BMW 5-Series 40 5-Series, 9.2 months of data per 5-Series, average 28300 miles

First year for F10 5-Series.
43
50% Fewest Trips Most Trips
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2011 Mercedes-Benz E-Class 29 E-Classes, 8.8 months of data per E-Class, average 24400 miles43
50% Fewest Trips Most Trips
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2010 BMW 5-Series 32 5-Series, 8.8 months of data per 5-Series, average 45900 miles94
100% Fewest Trips Most Trips
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2010 Mercedes-Benz E-Class 25 E-Classes, 9.2 months of data per E-Class, average 33600 miles

Redesigned for this model year.
68
80% Fewest Trips Most Trips
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2009 BMW 5-Series   18 5-Series, 9.8 months of data per 5-Series, average 56600 miles

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2009 Mercedes-Benz E-Class   14 E-Classes, 9.0 months of data per E-Class, average 47700 miles

* Very small sample size.
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2008 BMW 528 / 550 / M5 43 528 / 550 / M5s, 9.0 months of data per 528 / 550 / M5, average 63500 miles

Refreshed.
96
100% Fewest Trips Most Trips
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2008 BMW 535 25 535s, 10.6 months of data per 535, average 67400 miles

Refreshed.
122
100% Fewest Trips Most Trips
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2008 Mercedes-Benz E-Class 28 E-Classes, 8.9 months of data per E-Class, average 50200 miles82
80% Fewest Trips Most Trips
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2007 BMW 5-Series 30 5-Series, 7.5 months of data per 5-Series, average 77300 miles64
50% Fewest Trips Most Trips
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2007 Mercedes-Benz E-Class 37 E-Classes, 8.9 months of data per E-Class, average 68300 miles

Repair frequencies for the 2006 and 2008 have increased in the past year, but that for the 2007 has not. No specific problems common with any of these years, so no obvious explanation.
44
30% Fewest Trips Most Trips
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2006 BMW 5-Series 39 5-Series, 9.1 months of data per 5-Series, average 83300 miles99
90% Fewest Trips Most Trips
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2006 Mercedes-Benz E-Class 27 E-Classes, 9.1 months of data per E-Class, average 87200 miles88
70% Fewest Trips Most Trips
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2005 Mercedes-Benz E-Class   19 E-Classes, 9.2 months of data per E-Class, average 85700 miles

* Small sample size.
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2004 BMW 5-Series   24 5-Series, 8.5 months of data per 5-Series, average 93900 miles

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2004 Mercedes-Benz E-Class   13 E-Classes, 7.4 months of data per E-Class, average 81700 miles

* Very small sample size.
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2003 BMW 5-Series   24 5-Series, 8.7 months of data per 5-Series, average 100400 miles

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2003 Mercedes-Benz E-Class   15 E-Classes, 9.1 months of data per E-Class, average 94200 miles

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2002 BMW 5-Series 37 5-Series, 8.9 months of data per 5-Series, average 111400 miles80
40% Fewest Trips Most Trips
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2001 BMW 5-Series   20 5-Series, 9.5 months of data per 5-Series, average 125500 miles

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2001 Mercedes-Benz E-Class   16 E-Classes, 9.8 months of data per E-Class, average 144600 miles

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2000 BMW 5-Series   16 5-Series, 8.7 months of data per 5-Series, average 138600 miles

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2000 Mercedes-Benz E-Class   15 E-Classes, 6.8 months of data per E-Class, average 119000 miles

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1999 Mercedes-Benz E-Class   15 E-Classes, 8.9 months of data per E-Class, average 126500 miles

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What People Are Saying about Reliability and the BMW 5-Series

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What Our Members Are Saying about BMW 5-Series Reliability and Durability

Reliability and Durability of the BMW 5-Series: Pros
YearBody/PowertrainComment
2008 4dr Sedan 230-horsepower 3.0L I6
6-speed shiftable automatic AWD
Tremendous warranty which includes annual oil change and inspection paid for by dealer. ANY problems are fixed at no charge to customer.
2008 4dr Sedan turbocharged 300hp 3.0L I6
6-speed shiftable automatic AWD
Full service for first 4 years.
2007 4dr Sedan 215-horsepower 3.0L I6
6-speed manual RWD
Very good reputation.
2007 4dr Sedan 360-horsepower 4.8L V8
6-speed shiftable automatic RWD
No problems in 15,000 miles
2005 4dr Sedan 225-horsepower 3.0L I6
6-speed shiftable automatic RWD
Tried and true inline 6 cylinder engine.
2002 4dr Sedan 184-horsepower 2.5L I6
5-speed shiftable automatic RWD
Very little rust after 8+ years coupled with top notch materials lasting quite a long time. Replacement parts were very costly but performed for long periods. Current owners offer great advice on what and when to perform preventative maintenance.
Reliability and Durability of the BMW 5-Series: Cons
YearBody/PowertrainComment
2011 4dr Sedan turbocharged 300hp 3.0L I6
8-speed shiftable automatic RWD
- accelerator response (hesitation) - engine issues (check engine light requiring three service visits in two months) - engine malfunction light (part of turbo came disconnected) - faulty fuel sensor (recall first three months of new model year)
2010 4dr Sedan turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Unbelievable maintenance after 50K miles, cost and effort.
2010 4dr Sedan turbocharged 300hp 3.0L I6
6-speed shiftable automatic RWD
Terrible reputation for poor reliability and absurdly high repair costs as early as 50,000 miles.
2005 4dr Sedan 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
Over 80K many systems were beginning to break down
2004 4dr Sedan 225-horsepower 3.0L I6
6-speed manual RWD
Had several repairs the first month of ownership that were covered by CPO warranty...love that BMW CPO
2002 4dr Sedan 290-horsepower 4.4L V8
5-speed shiftable automatic RWD
I picked the above "reason" because it's the worst feature of an otherwise perfect vehicle. The durability of the interior is quite frankly an embarassment. I've lost the buttons for max for the heater, up for the driver side temerature, and the top button for the airflow direction .... don't ask me where they went, they just disappeared! I've broken the drivers side cup holder (and come on ... how pathetic are those cup holders!), and once it breaks, it no longer clicks back into the closed position so now I have a half a cup holder sticking out. One other grievance relating to interior durability ... the plastic footrest (left foot) down below the hood lever also fell apart. The plastic just broke away in
2002 4dr Sedan 225-horsepower 3.0L I6
5-speed shiftable automatic RWD
This car is known to have a plethora of problems. I have yet to see if it will hold up well for me.
2001 4dr Sedan 225-horsepower 3.0L I6
5-speed shiftable automatic RWD
dealer ship as a mess

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What Our Members Are Saying about Mercedes-Benz E-Class Reliability and Durability

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