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Audi A4 / S4 / RS4 vs. Infiniti G Reliability Comparisons

You won't find Audi A4 / S4 / RS4 or Infiniti G reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the Audi A4 / S4 / RS4 and the Infiniti G truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track Audi A4 / S4 / RS4 and Infiniti G reliability as the cars age. Others tell you how reliable the Audi A4 / S4 / RS4 and the Infiniti G 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 Audi A4 / S4 / RS4 and the Infiniti G have been recently.

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See reliability results for all Sedans, Wagons, and Convertibles.

See only powertrain and chassis results

Year Make/Model Repair Frequencysuccessful repair trips per 100 cars per year Compared to all models for the same year  
2014 Audi A4 / S4   16 A4 / S4s, 3.8 months of data per A4 / S4, average 4100 miles

* Small sample size.
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or 16 A4 / S4s, 3.8 months of data per A4 / S4, average 4100 miles

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2013 Audi A4 / S4 98 A4 / S4s, 9.3 months of data per A4 / S4, average 9500 miles

Refreshed for this model year.
16
10% Fewest Trips Most Trips
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2013 Infiniti G   19 Gs, 5.6 months of data per G, average 7700 miles

* Small sample size.
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2012 Audi A4 31 A4s, 9.7 months of data per A4, average 23200 miles8
0% Fewest Trips Most Trips
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2012 Audi S4 49 S4s, 8.0 months of data per S4, average 22000 miles40
50% Fewest Trips Most Trips
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2012 Infiniti G 31 Gs, 8.8 months of data per G, average 16000 miles13
0% Fewest Trips Most Trips
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2011 Audi S4 52 S4s, 10.0 months of data per S4, average 31900 miles39
40% Fewest Trips Most Trips
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2011 Audi A4 38 A4s, 10.1 months of data per A4, average 33200 miles44
50% Fewest Trips Most Trips
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2011 Infiniti G 62 Gs, 9.5 months of data per G, average 28900 miles16
10% Fewest Trips Most Trips
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2010 Audi S4 66 S4s, 9.4 months of data per S4, average 42300 miles

Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated valves and piston rings.
43
40% Fewest Trips Most Trips
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2010 Audi A4 32 A4s, 9.8 months of data per A4, average 49900 miles

Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated valves and piston rings.
61
70% Fewest Trips Most Trips
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2010 Infiniti G 56 Gs, 8.9 months of data per G, average 43500 miles26
20% Fewest Trips Most Trips
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2009 Audi A4 3.2 40 A4 3.2s, 10.5 months of data per A4 3.2, average 48800 miles

First model year of the B8 A4. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated valves and piston rings.
49
40% Fewest Trips Most Trips
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2009 Audi A4 2.0T 41 A4 2.0Ts, 9.4 months of data per A4 2.0T, average 52900 miles

First model year of the B8 A4. Multiple reports of excessive oil consumption for the 2.0T engine. Some engines rebuilt with updated valves and piston rings.
56
50% Fewest Trips Most Trips
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2009 Infiniti G 67 Gs, 9.7 months of data per G, average 46400 miles18
0% Fewest Trips Most Trips
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2008 Audi S4 / RS4   11 S4 / RS4s, 10.2 months of data per S4 / RS4, average 56000 miles

* Very small sample size.
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2008 Audi A4 43 A4s, 9.8 months of data per A4, average 62200 miles43
30% Fewest Trips Most Trips
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2008 Infiniti G 91 Gs, 9.9 months of data per G, average 67300 miles

Coupe redesigned for this model year.
27
10% Fewest Trips Most Trips
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2007 Audi S4 / RS4   21 S4 / RS4s, 10.9 months of data per S4 / RS4, average 58600 miles

* Small sample size.
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2007 Audi A4 45 A4s, 10.2 months of data per A4, average 68800 miles87
70% Fewest Trips Most Trips
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2007 Infiniti G sedan 49 G sedans, 9.1 months of data per G sedan, average 77700 miles

Sedan redesigned for this model year.
27
10% Fewest Trips Most Trips
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2007 Infiniti G coupe   12 G coupes, 10.6 months of data per G coupe, average 62600 miles

* Very small sample size.
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2006 Audi S4   15 S4s, 9.9 months of data per S4, average 70200 miles

* Small sample size.
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2006 Audi A4 68 A4s, 9.0 months of data per A4, average 92400 miles

Includes 2005.5. First model year of the B7 A4.
98
80% Fewest Trips Most Trips
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2006 Infiniti G 60 Gs, 10.1 months of data per G, average 82000 miles62
40% Fewest Trips Most Trips
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2005 Audi S4   17 S4s, 10.2 months of data per S4, average 75000 miles

* Small sample size.
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2005 Audi A4   18 A4s, 8.6 months of data per A4, average 90900 miles

* Small sample size.
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2005 Infiniti G 39 Gs, 8.8 months of data per G, average 76200 miles63
40% Fewest Trips Most Trips
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2004 Audi A4 28 A4s, 9.8 months of data per A4, average 110500 miles74
40% Fewest Trips Most Trips
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2004 Audi S4   22 S4s, 9.6 months of data per S4, average 90200 miles

* Small sample size.
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2004 Infiniti G 52 Gs, 9.8 months of data per G, average 99400 miles54
20% Fewest Trips Most Trips
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2003 Audi A4 27 A4s, 8.0 months of data per A4, average 125800 miles72
30% Fewest Trips Most Trips
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2003 Infiniti G 48 Gs, 8.3 months of data per G, average 98700 miles42
0% Fewest Trips Most Trips
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2002 Audi S4   10 S4s, 9.2 months of data per S4, average 94900 miles

* Very small sample size.
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2002 Audi A4 35 A4s, 9.1 months of data per A4, average 141800 miles

First model year of the B6 A4. S4 still B5.
143
100% Fewest Trips Most Trips
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2001 Audi A4 / S4   14 A4 / S4s, 7.6 months of data per A4 / S4, average 126200 miles

* Very small sample size.
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2000 Audi A4 / S4   14 A4 / S4s, 9.1 months of data per A4 / S4, average 145100 miles

* Very small sample size.
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1999 Audi A4 / S4   14 A4 / S4s, 6.4 months of data per A4 / S4, average 154100 miles

* Very small sample size.
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What People Are Saying about Reliability and the Audi A4 / S4 / RS4

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What Our Members Are Saying about Audi A4 / S4 / RS4 Reliability and Durability

Reliability and Durability of the Audi A4 / S4 / RS4: Pros
YearBody/PowertrainComment
2010 4dr Wagon turbocharged 211hp 2.0L I4
6-speed shiftable automatic AWD
65,000 miles and not a single problem other than routine oil changes and tires. My BMW 335i is always in the shop and is a maintenance nightmare.
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed manual AWD
So far, perfect
2006 4dr Sedan turbocharged 200hp 2.0L I4
6-speed manual AWD
This car is bullet-proof. End of story. The B7 A4 is the evolution of B6/B7 platform and most of the kinks are ironed out in the final years. No worries here.
2006 4dr Sedan turbocharged 200hp 2.0L I4
6-speed shiftable automatic AWD
Like that I can drive an Audi for 6+ years/100k+ miles and still feel safe.
2005 2dr Convertible 220-horsepower 3.0L V6
5-speed shiftable automatic AWD
so far so good, but I have only had the car less than a month, too soon to tell
2002 4dr Sedan turbocharged 170hp 1.8L I4
5-speed manual AWD
120k miles + and counting, no major issues
Reliability and Durability of the Audi A4 / S4 / RS4: Cons
YearBody/PowertrainComment
2010 4dr Sedan turbocharged 211hp 2.0L I4
6-speed shiftable automatic AWD
Very expensive to fix and not with the same history of reliability as Benz.
2007 4dr Sedan turbocharged 200hp 2.0L I4
6-speed shiftable automatic AWD
My second A4 is better than the last, but I am glad I leased instead of buying. Reliability is just not world class.
2006 4dr Sedan 340-horsepower 4.2L V8
6-speed manual AWD
Do not buy one of these used unless the timing chain pre-tensioners have been replaced. There are a lot of complaints of these breaking at 100,000 miles. Mine went at 99,100 miles and the dealer quoted me $10,000 to fix. I had to sell this car at a loss. What a waste!
2006 4dr Sedan turbocharged 200hp 2.0L I4
6-speed shiftable automatic AWD
Not reliable, lots of dealer visits,
2005 4dr Sedan turbocharged 170hp 1.8L I4
5-speed shiftable automatic AWD
In the shop 10 times during last seven months. Towed 4 times because not drivable
2005 4dr Sedan 340-horsepower 4.2L V8
6-speed manual AWD
The two cars I looked at were low mileage 2005s, CPO, and both had full service history, of which there was a lot. Both cars noted cooling issues and problems with the steering system repaired under warranty. Also numerous electrical problems.
2004 4dr Sedan turbocharged 170hp 1.8L I4
5-speed shiftable automatic AWD
Reputation for mechanical problems and expensive repairs
2003 4dr Wagon turbocharged 170hp 1.8L I4
5-speed manual AWD
The car is not reliable - sensors, electrics, etc.
2002 4dr Sedan 220-horsepower 3.0L V6
6-speed manual AWD
Had to have many repairs before all the bugs worked out - now seems reliable (knock on wood)
2002 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
The high tech nature of these cars requires somewhat more attention to maintenance.

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What Our Members Are Saying about Infiniti G Reliability and Durability

None of our members have yet commented on the reliability and durability of the Infiniti G.

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