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BMW 4-Series vs. Audi A4 / S4 Reliability by Model Generation

Results are for year ending June 30, 2018. 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 and Model % of Average Repair Frequency  
2017 - 2018 Audi A4 Reliability by Generation2017 - 2018 Audi A4
17.428571428571% Best 68% Worst
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2014 - 2018 BMW 4-Series Reliability by Generation2014 - 2018 BMW 4-Series
35.714285714286% Best 100% Worst
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2013 - 2016 Audi A4 / S4 Reliability by Generation2013 - 2016 Audi A4 / S4
51.714285714286% Best 128% Worst
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2009 - 2012 Audi A4 / S4 Reliability by Generation2009 - 2012 Audi A4 / S4
53.428571428571% Best 131% Worst
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2006 - 2008 Audi A4 / S4 Reliability by Generation2006 - 2008 Audi A4 / S4
72.857142857143% Best 165% Worst
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2002 - 2005 Audi A4 Reliability by Generation2002 - 2005 Audi A4
48.857142857143% Best 123% Worst
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