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

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Results are for year ending September 30, 2016. Only successfully completed repairs are currently included in the analysis. Routine maintenance, most wear items, recalls, and problems fixed with just a reflash or warning light reset are not included.
Year Make/Model Repair Trips Per 100 Cars Compared to all models for the same year    
2015 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  11 E-Classes, 9.5 months of data per E-Class, average 12100 miles

* Very small sample, members only.

 

2014 BMW 5-Series 22
26.9230769231% 26.9230769231% Fewest Trips Most Trips
see reported repairs
  31 5-Series, 10.4 months of data per 5-Series, average 19700 miles
2014 Mercedes-Benz E-Class 36
57.6923076923% 57.6923076923% Fewest Trips Most Trips
see reported repairs
  53 E-Classes, 7.5 months of data per E-Class, average 24800 miles

Refreshed for this model year. Reliable so far.

 

2013 BMW 5-Series 33
43.5960591133% 43.5960591133% Fewest Trips Most Trips
see reported repairs
  31 5-Series, 8.3 months of data per 5-Series, average 35900 miles
2013 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  20 E-Classes, 8.8 months of data per E-Class, average 38300 miles

* Small sample, members only.

 

2012 BMW 5-Series 16
10.0985221675% 10.0985221675% Fewest Trips Most Trips
see reported repairs
  25 5-Series, 8.8 months of data per 5-Series, average 46700 miles
2012 Mercedes-Benz E-Class 39
55.4187192118% 55.4187192118% Fewest Trips Most Trips
see reported repairs
  28 E-Classes, 9.8 months of data per E-Class, average 40100 miles

Despite what the colors of the faces suggest, not too far out of line with the 2010 and 2011. Multiple reports of Adblue heater failures in the diesel.

 

2011 BMW 5-Series 69
79.6703296703% 79.6703296703% Fewest Trips Most Trips
see reported repairs
  39 5-Series, 9.4 months of data per 5-Series, average 58000 miles

First year for F10 5-Series.
2011 Mercedes-Benz E-Class 42
40.1098901099% 40.1098901099% Fewest Trips Most Trips
see reported repairs
  25 E-Classes, 9.2 months of data per E-Class, average 49100 miles

Barely green. Not far off the "unhappy" stat for the 2010. Urea-injection was new to the diesel this year. Some reports of Adblue heater failures.

 

2010 BMW 5-Series 75
88.4615384615% 88.4615384615% Fewest Trips Most Trips
see reported repairs
  28 5-Series, 8.5 months of data per 5-Series, average 76200 miles
2010 Mercedes-Benz E-Class 66
75.2747252747% 75.2747252747% Fewest Trips Most Trips
see reported repairs
  28 E-Classes, 11.1 months of data per E-Class, average 58100 miles

Redesigned for this model year.

 

2009 BMW 5-Series   small sample, members only   see reported repairs
  10 5-Series, 8.2 months of data per 5-Series, average 87800 miles

* Very small sample, members only.
2009 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  15 E-Classes, 10.1 months of data per E-Class, average 68200 miles

* Small sample, members only.

 

2008 BMW 535   small sample, members only   see reported repairs
  15 535s, 10.5 months of data per 535, average 100200 miles

* Small sample, members only.
2008 BMW 528 / 550 / M5 115
100% 100% Fewest Trips Most Trips
see reported repairs
  38 528 / 550 / M5s, 6.8 months of data per 528 / 550 / M5, average 96900 miles

Refreshed. First year for the turbocharged six in the 535i. Common turbo failures.
2008 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  19 E-Classes, 10.8 months of data per E-Class, average 77800 miles

* Small sample, members only.

 

2007 BMW 5-Series 100
77.0935960591% 77.0935960591% Fewest Trips Most Trips
see reported repairs
  29 5-Series, 7.5 months of data per 5-Series, average 112500 miles
2007 Mercedes-Benz E-Class 80
57.3891625616% 57.3891625616% Fewest Trips Most Trips
see reported repairs
  30 E-Classes, 8.0 months of data per E-Class, average 94000 miles

Refreshed for this model year.

 

2006 BMW 5-Series 81
65.9029649596% 65.9029649596% Fewest Trips Most Trips
see reported repairs
  33 5-Series, 9.0 months of data per 5-Series, average 108600 miles
2006 Mercedes-Benz E-Class 73
57.2776280323% 57.2776280323% Fewest Trips Most Trips
see reported repairs
  26 E-Classes, 10.1 months of data per E-Class, average 112400 miles

 

2005 BMW 5-Series   small sample, members only   see reported repairs
  10 5-Series, 10.1 months of data per 5-Series, average 117100 miles

* Very small sample, members only.
2005 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  12 E-Classes, 6.8 months of data per E-Class, average 125500 miles

* Very small sample, members only.

 

2004 BMW 5-Series   small sample, members only   see reported repairs
  15 5-Series, 10.3 months of data per 5-Series, average 114400 miles

* Small sample, members only.
2004 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  14 E-Classes, 7.9 months of data per E-Class, average 146400 miles

* Very small sample, members only.

 

2003 BMW 5-Series 100
54.7619047619% 54.7619047619% Fewest Trips Most Trips
see reported repairs
  28 5-Series, 7.3 months of data per 5-Series, average 112500 miles
2003 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  10 E-Classes, 9.5 months of data per E-Class, average 110700 miles

* Very small sample, members only.

 

2002 BMW 5-Series 74
36.4970645793% 36.4970645793% Fewest Trips Most Trips
see reported repairs
  29 5-Series, 7.8 months of data per 5-Series, average 123700 miles
2002 Mercedes-Benz E-Class   small sample, members only   see reported repairs
  10 E-Classes, 9.6 months of data per E-Class, average 148200 miles

* Very small sample, members only.

 

2001 BMW 5-Series   small sample, members only   see reported repairs
  16 5-Series, 7.3 months of data per 5-Series, average 123400 miles

* Small sample, members only.

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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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