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Mercedes-Benz GLK vs. Audi A5 / S5 Reliability

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Results are for year ending December 31, 2015. 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 Audi A5 / S5 23
40% 40% Fewest Trips Most Trips
[?] see reported repairs
  32 A5 / S5s, 8.0 months of data per A5 / S5, average 7600 miles

 

2014 Audi A5 / S5 19
30% 30% Fewest Trips Most Trips
[?] see reported repairs
  61 A5 / S5s, 9.4 months of data per A5 / S5, average 14800 miles
2014 Mercedes-Benz GLK   small sample, members only   see reported repairs
  17 GLKs, 8.8 months of data per GLK, average 14300 miles

* Small sample, members only.

 

2013 Audi A5 / S5 32
50% 50% Fewest Trips Most Trips
[?] see reported repairs
  112 A5 / S5s, 9.7 months of data per A5 / S5, average 28400 miles

Refreshed for this model year.
2013 Mercedes-Benz GLK   small sample, members only   see reported repairs
  22 GLKs, 8.7 months of data per GLK, average 29500 miles

* Small sample, members only.

 

2012 Audi A5 33
50% 50% Fewest Trips Most Trips
[?] see reported repairs
  37 A5s, 9.9 months of data per A5, average 43500 miles
2012 Audi S5 41
60% 60% Fewest Trips Most Trips
[?] see reported repairs
  56 S5s, 9.5 months of data per S5, average 38700 miles

 

2011 Audi A5 35
40% 40% Fewest Trips Most Trips
[?] see reported repairs
  44 A5s, 9.3 months of data per A5, average 57200 miles

Most of the cars in this sample are A4s or S4s. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated piston rings.
2011 Audi S5 46
60% 60% Fewest Trips Most Trips
[?] see reported repairs
  46 S5s, 9.7 months of data per S5, average 52500 miles

Most of the cars in this sample are A4s or S4s. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated piston rings.
2011 Mercedes-Benz GLK   small sample, members only   see reported repairs
  14 GLKs, 9.3 months of data per GLK, average 40100 miles

* Very small sample, members only.

 

2010 Audi A5 3.2 / S5 57
70% 70% Fewest Trips Most Trips
[?] see reported repairs
  64 A5 3.2 / S5s, 8.9 months of data per A5 3.2 / S5, average 56400 miles

Most of the cars in this sample are A4s or S4s. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated piston rings.
2010 Audi A5 2.0T 58
70% 70% Fewest Trips Most Trips
[?] see reported repairs
  29 A5 2.0Ts, 9.2 months of data per A5 2.0T, average 64500 miles

Most of the cars in this sample are A4s or S4s. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated piston rings.
2010 Mercedes-Benz GLK   small sample, members only   see reported repairs
  19 GLKs, 9.7 months of data per GLK, average 58500 miles

* Small sample, members only.

 

2009 Audi A5 / S5 50
50% 50% Fewest Trips Most Trips
[?] see reported repairs
  34 A5 / S5s, 9.1 months of data per A5 / S5, average 66400 miles

Most of the cars in this sample are A4s. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated piston rings.

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Mercedes-Benz GLK vs. Audi A5 / S5 Reliability Comparisons

You won't find Mercedes-Benz GLK or Audi A5 / S5 reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the Mercedes-Benz GLK and the Audi A5 / S5 truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track Mercedes-Benz GLK and Audi A5 / S5 reliability as the cars age. Others tell you how reliable the Mercedes-Benz GLK and the Audi A5 / S5 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 Mercedes-Benz GLK and the Audi A5 / S5 have been recently.

What People Are Saying about Reliability and the Mercedes-Benz GLK

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What Our Members Are Saying about the Reliability and Durability of the Mercedes-Benz GLK

Mercedes-Benz GLK Reliability and Durability: Pros
YearBody/PowertrainComment
2010 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
Our previous vehicle was a 2005 Mercedes Benz C-240. From a reliability standpoint, the C-240 was flawless. I am hoping the GLK will be as good as the C-240 was.
 

What Our Members Are Saying about the Reliability and Durability of the Audi A5 / S5

Audi A5 / S5 Reliability and Durability: Cons
YearBody/PowertrainComment
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD
Questionable Audi reliability.
2009 2dr Coupe turbocharged 170hp 2.0L I4 Diesel
6-speed manual AWD
Reliability is questionable. Engine has already stopped on idle rpm once right after a start-up, oil level was temporarily unavailable on display, one of the headlights is no longer waterproof (moist inside). Odometer is currently only 4000 miles.
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD
I have had this car repaired over 10 times. Clutch (multiple times), door electronics, dealer incompetence, Catalytic converter, misfires, power window issues, A/C freezing issues all before 45k miles.