2005 Audi A4 Problems

High Complaint Volume

Real NHTSA owner complaints for the 2005 Audi A4. Part of Generation 2 (B6) — 2002–2005.

20042006
Complaints
266
Crashes
13
Fires
5
Injuries
8
Fatalities
Recalls
3

Worst 2005 Audi A4 Problems

Top 3 most-reported issues with average mileage at failure.

#197 complaints

Headlight/Taillight Failures

Avg mileage:67,293 mi
#248 complaints

Airbags

Avg mileage:85,767 mi
Crash-related:4
#324 complaints

Electrical Faults

Avg mileage:63,186 mi
Fires:3
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All Problems by Category

Every NHTSA complaint category for the 2005 Audi A4.

Headlight/Taillight Failures
97
complaints
Crashes
Fires
Avg Miles
67,293
Airbags
48
complaints
Crashes
4
Fires
Avg Miles
85,767
Electrical Faults
24
complaints
Crashes
Fires
3
Avg Miles
63,186
Engine Problems
10
complaints
Crashes
1
Fires
1
Avg Miles
131,490
Transmission / Drivetrain
10
complaints
Crashes
Fires
Avg Miles
66,715
Unintended Acceleration
8
complaints
Crashes
1
Fires
Avg Miles
58,649
Gasoline Fuel System
7
complaints
Crashes
Fires
Avg Miles
65,237
Engine & Cooling
6
complaints
Crashes
1
Fires
Avg Miles
65,262
Automatic Transmission
5
complaints
Crashes
Fires
Avg Miles
54,123
Steering Defects
5
complaints
Crashes
Fires
Avg Miles
73,100
Exterior Lighting:Headlights
4
complaints
Crashes
Fires
Avg Miles
Air Bags:Frontal:Sensor/Control Module
3
complaints
Crashes
1
Fires
Avg Miles
Electronic Stability Control
3
complaints
Crashes
Fires
Avg Miles
Fuel System
3
complaints
Crashes
1
Fires
Avg Miles
Latches / Locks
3
complaints
Crashes
Fires
Avg Miles
Tire Defects
3
complaints
Crashes
Fires
Avg Miles
Air Bags:Frontal
2
complaints
Crashes
2
Fires
Avg Miles
Engine And Engine Cooling:Engine
2
complaints
Crashes
Fires
Avg Miles
Fuel Pump
2
complaints
Crashes
Fires
Avg Miles
Structural Problems
2
complaints
Crashes
Fires
Avg Miles
Visibility
2
complaints
Crashes
Fires
Avg Miles
Wipers & Visibility
2
complaints
Crashes
Fires
Avg Miles
Air Bags:Side/Window
1
complaints
Crashes
Fires
Avg Miles
Fuel System, Gasoline:Delivery
1
complaints
Crashes
Fires
Avg Miles
Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm)
1
complaints
Crashes
Fires
Avg Miles
Seat Belt Issues
1
complaints
Crashes
Fires
Avg Miles
Brakes
1
complaints
Crashes
Fires
Avg Miles
Service Brakes, Hydraulic:Power Assist
1
complaints
Crashes
1
Fires
Avg Miles
Steering:Hydraulic Power Assist System
1
complaints
Crashes
1
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2005 Audi A4. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2005 Audi A4

3 NHTSA recall campaigns affecting ~465,821 vehicles.

18V427000Air Bags:frontal:passenger Side:inflator Module
~237,947 affected

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2005-2008 Audi A4 Sedan, A4 Avant, S4 Avant and S4 Sedan, 2007-2008 RS4 Sedan, 2004 RS4 Cabriolet, 2007-2009 A4 Cabriolet and S4 Cabriolet, 2005-2011 A6 Sedan, 2006-2011 A6 Avant, and 2007-2011 S6 Sedan vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

17V032000Air Bags:frontal:passenger Side:inflator Module
~33,421 affected

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009 Audi A4 Cabriolet, S4 Cabriolet, A6 Avant, A6 Sedan and S6 Sedan vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, the District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone B" above, Volkswagen is recalling certain 2005-2008 Audi A4 Avant, A4 Sedan, A6 Sedan, S4 Avant and S4 Sedan vehicles, 2007-2008 A4 Cabriolet, RS4 Sedan, S4 Cabriolet and S6 Sedan vehicles, and 2006-2008 A6 Avant and 2008 RS4 Cabriolet vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

16V382000Air Bags:frontal:passenger Side:inflator Module
~194,453 affected

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2004-2008 Audi A4, and 2005-2011 Audi A6 vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Volkswagen is recalling certain model year 2004-2008 Audi A4, and 2005-2008 Audi A6 vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Volkswagen is recalling model year 2004 Audi A4 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

Other Audi A4 Years

2005 Audi A4 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2005 Audi A4 reliable?
Verdict: High Complaint Volume. The 2005 Audi A4 has 266 NHTSA complaints, 13 crash-related, and 3 recall campaigns. The most common issue is Headlight/Taillight Failures with 97 complaints. Source: NHTSA via VinItel.
What are common problems with the 2005 Audi A4?
Top reported problems: Headlight/Taillight Failures (97 complaints, avg 67,293 mi); Airbags (48 complaints, avg 85,767 mi); Electrical Faults (24 complaints, avg 63,186 mi). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2005 Audi A4?
The weighted average mileage at time of complaint is about 73,165 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2005 Audi A4?
NHTSA complaints for the 2005 Audi A4 include 13 crash-related reports, 5 fire reports, 8 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2005 Audi A4 have any recalls?
Yes — 3 NHTSA recall campaigns affecting an estimated 465,821 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2005 Audi A4?
This year has a higher-than-normal complaint volume. It's not an automatic no, but focus inspection on the top reported issue (headlight/taillight failures) and verify open recalls have been addressed.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Audi A4 reliability report with year-by-year comparison and generation analysis.

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