Audi A4 / S4 Reliability Comparisons

Based on TrueDelta's Car Reliability Survey
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This is the most up-to-date car reliability information available anywhere for the Audi A4 / S4. TrueDelta's Car Reliability Survey results are promptly updated every three months. Others can be over a year behind. What you'll also find only here: actual repair rates (the average number of trips to the repair shop each year), and not just dots, for a clearer idea of how much competing cars truly differ in reliability.

Members: to view car reliability information for:

• up to ten competing car models, instead of up to five
• car models for which fewer owners responded--marked "join to view"

Not a member yet? Read about TrueDelta's research and how to participate by clicking here.

Repairs reported: To view all reported repairs, click on the model.

Comments: Some results have comments. To view these, hover the cursor over a result. General notes.
 

Audi A4 / S4 Reliability
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Car Reliability Survey (CRS) Results: year ending June 30, 2010
Successful Repair Trips per Year (per 100 vehicles) Column definitions
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Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2010	Audi	A4	36 Fewest         Most Second model year, much better than people expect from an Audi so far. S4 repair frequency similar to the A4 once consider lower average odometer.		--	68 5.0 5900
2010	Audi	S4	27 Fewest         Most Second model year, much better than people expect from an Audi so far. S4 repair frequency similar to the A4 once consider lower average odometer.		-9	29 3.1 3900
2009	Audi	A4	72 Fewest         Most First year of the B8, and appears to continue the average repair frequency of the B7 A4. Common problem with the front suspension.		--	105 8.0 11800
2008	Audi	A4	59 Fewest         Most		--	47 7.7 25000
2007	Audi	A4	55 Fewest         Most Small sample size for S4 performance variant. Seems to require fewer repairs than the A4 on which it's based, but note lower average odometer.		--	69 7.5 38200
2007	Audi	S4*	join to view			17 6.9 30700
2006	Audi	A4	85 Fewest         Most Includes 2005.5. Much lower repair frequency than B6 A4. Small sample size for S4 performance variant. Seems to require fewer repairs than the A4 on which it's based, but note lower average odometer.		--	105 7.5 52300
2006	Audi	S4*	join to view			17 7.9 42700
2005	Audi	A4	145 Fewest         Most		--	29 6.8 64900
2005	Audi	S4*	join to view			14 6.7 57700
2004	Audi	A4	152 Fewest         Most		--	35 5.2 69800
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2004	Audi	S4	126 Fewest         Most		-26	25 7.2 61500
2003	Audi	A4	103 Fewest         Most Lower reported repair frequency than the 2002 or 2004. Possibly because sample size is just a bit over the minimum for a full result?		--	29 6.4 90000
2002	Audi	A4	148 Fewest         Most		--	50 6.7 98200
2001	Audi	A4 / S4*	join to view			18 6.0 102600
2000	Audi	A4 / S4	181 Fewest         Most		--	32 6.2 102200
1999	Audi	A4 / S4*	join to view			13 5.8 127800
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Competing Car Model Reliability

Car Reliability Survey (CRS) Results: year ending June 30, 2010
Successful Repair Trips per Year (per 100 vehicles) Column definitions
Sort
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2010	BMW	3-Series / M3	12 Fewest         Most		-24	25 4.0 4200
2009	BMW	328	25 Fewest         Most High failure rate for the High Pressure Fuel Pump in the 335i. 335d included with the 328. Low average odometer for M3.		-47	34 7.1 10000
2009	BMW	335	87 Fewest         Most High failure rate for the High Pressure Fuel Pump in the 335i. 335d included with the 328. Low average odometer for M3.		+15	32 7.8 9400
2009	BMW	M3*	join to view			14 5.6 6200
2008	BMW	335	86 Fewest         Most High failure rate for the High Pressure Fuel Pump in the 335i. 335d included with the 328. Low average odometer for M3.		+27	48 8.4 19900
2008	BMW	M3*	join to view			22 5.8 12800
2008	BMW	328	40 Fewest         Most High failure rate for the High Pressure Fuel Pump in the 335i. 335d included with the 328. Low average odometer for M3.		-19	40 6.8 22900
2007	BMW	335	90 Fewest         Most By the time these cars are in their third year, high pressure fuel pump failures are much less common and no longer yield a much higher repair rate for the 335i than for the 328i.		+35	74 8.4 28700
2007	BMW	328	73 Fewest         Most By the time these cars are in their third year, high pressure fuel pump failures are much less common and no longer yield a much higher repair rate for the 335i than for the 328i.		+18	62 7.5 32700
2006	BMW	3-Series 4dr	75 Fewest         Most		-10	92 7.7 49400
2005	BMW	3-Series	118 Fewest         Most Possibly a blip at the end of the standard warranty, to get things fixed before the warranty runs out.		-27	29 8.4 57800
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2004	BMW	3-Series	87 Fewest         Most Very low average odometer and/or very small sample size for M3 might explain low reported repair frequency.		-65	54 7.4 63300
2004	BMW	M3*	join to view			10 7.3 36800
2003	BMW	3-Series	108 Fewest         Most		+5	38 7.9 73700
2002	BMW	3-Series	99 Fewest         Most		-49	37 7.5 85800
2002	BMW	M3*	join to view			13 6.2 64200
2001	BMW	3-Series	141 Fewest         Most			47 8.0 94300
2000	BMW	3-Series*	join to view			19 6.2 133300
1999	BMW	3-Series - E46*	join to view			14 7.4 146200
1999	BMW	3-Series - E36*	join to view			10 6.4 99100
1998	BMW	3-Series / M3*	join to view			19 5.1 141100
1995	BMW	3-Series / M3*	join to view			16 3.6 146800
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2009	Infiniti	G37	15 Fewest         Most		-57	63 7.7 8800
2008	Infiniti	G35 / G37	33 Fewest         Most		-26	108 8.0 22100
2007	Infiniti	G35 sedan	42 Fewest         Most		-13	62 7.9 33600
2006	Infiniti	G35	56 Fewest         Most		-29	69 7.5 44800
2005	Infiniti	G35	60 Fewest         Most		-85	47 6.8 56300
2004	Infiniti	G35	39 Fewest         Most		-113	62 7.4 56200
2003	Infiniti	G35	78 Fewest         Most		-25	67 7.2 78900
2009	Mercedes-Benz	C-Class	44 Fewest         Most The 2008 was about the same a year ago.		-28	32 6.8 11400
2008	Mercedes-Benz	C-Class	28 Fewest         Most		-31	52 8.4 18700
2007	Mercedes-Benz	C-Class*	join to view			19 6.5 31600
2006	Mercedes-Benz	C-Class*	join to view			12 10.3 44400
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2005	Mercedes-Benz	C-Class	51 Fewest         Most		-94	31 6.8 66700
2004	Mercedes-Benz	C-Class*	join to view			15 5.9 57900
2003	Mercedes-Benz	C-Class*	join to view			16 7.4 85600
2002	Mercedes-Benz	C-Class*	join to view			10 7.2 62600
2010	Volkswagen	CC	51 Fewest         Most		+15	26 3.7 6300
2009	Volkswagen	CC	78 Fewest         Most		+6	25 7.4 13500
2009	Volkswagen	Passat*	join to view			18 7.2 13500
2008	Volkswagen	Passat	59 Fewest         Most		0	44 9.3 21000
2007	Volkswagen	Passat	96 Fewest         Most		+41	51 8.8 40900
2006	Volkswagen	Passat	117 Fewest         Most		+32	39 7.3 44400
2005	Volkswagen	Passat	125 Fewest         Most		-20	27 7.4 70100
Year	Make	Model	Trips / Year per 100	TS	Δ	Cars Mon/Car Av Odo
2004	Volkswagen	Passat	106 Fewest         Most		-46	27 7.1 70700
2003	Volkswagen	Passat	120 Fewest         Most		+17	39 6.9 87200
2002	Volkswagen	Passat	133 Fewest         Most		-15	40 7.9 95100
2001	Volkswagen	Passat*	join to view			15 6.7 83600
2000	Volkswagen	Passat*	join to view			19 5.6 148100
1999	Volkswagen	Passat*	join to view			13 6.4 126900
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Car you're interested in not listed? Then either it's not a common comparison, or not enough owners participated. You can help by telling others about this research.

Definitions

• Trips / Year per 100 (CRS Score) -- average number of successful repair trips per year per 100 cars; routine maintenance such as oil and filter changes does not count as a repair
• Graph -- pointer shows how the model compares to others from the same model year
• Traffic Signal (TS) -- same as the graph, but with three simple, easier-to-read alternatives; green = better than average, yellow = about average, red = worse than average
• Delta (Δ) -- how much the CRS Score differs from the same year Audi A4 / S4; negative = fewer repairs = better; +100 = one extra repair trip per year, on average
• Cars -- number of cars for which owners provided data
• Months / Car -- average number of months of data per car
• Odometer -- average odometer reading, in miles; under 9,000 per year in green, over 15,000 per year in red

Return to survey results ^

General Notes

How do we select "competing car models"? Users of TrueDelta's car price comparison tool most often compare these cars to the Audi A4 / S4.

Models and statistics marked with an asterisk* have very low sample sizes. These results, visible only to logged-in members, provide only a rough estimate of car reliability.

Ultra-low repair rates: Any result under 20 repair trips per 100 cars is likely a result of the small sample size, and should be expected to increase to 20 or so in future updates.

New models often start out with high repair rates, and then improve as the manufacturer identifies and addresses common problems.

Full set of Car Reliability Survey results in one huge table.

Return to survey results ^

Methodology

Description of the research process.

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.

Found this information useful, and want to help improve it while earning full access? Then become a member--it's free for participants--and help provide the data.

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Audi A4 / S4 Forums (TrueDelta partners)

These forums have helped make our results possible. For discussions of the A4 / S4 by owners, visit:

AudiWorld.com -- Audi A4 / S4 forum

fourtitude.com -- Audi A4 / S4 forum

Direct links to this page

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