Audi A4 2006–2008
3rd generation (B7, Typ 8E facelift)
NHTSA data through 13 August 2026773 complaints, 426 with mileageMethod
- Reports with mileage
- 426
- Median of reported failures
- 63,000 mi
- Most-reported system
- Airbag system (39.8%)
- Recalls
- 4
Before-you-buy checklist ↓Check this VIN — NHTSA ↗
On this generation, failures are spread across the mileage range, with the middle half between 38,000 and 88,000 miles.
Figure 1 · Audi A4 2006–2008 · 426 reports with mileage
Mileage at failure
Complaints per 10,000-mile bin, 0 to 200,000 miles, equal bins on a linear scale. Tallest bar = 53 complaints.
- Rest of the range
- Median
- 200,000+ — 2 complaints (0.5%), plotted separately
- 10%
- 12,000
- 25%
- 38,000
- Median
- 63,241
- 75%
- 88,000
- 90%
- 112,000
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–10,000 | 28 | 6.6% |
| 10,000–20,000 | 24 | 5.6% |
| 20,000–30,000 | 26 | 6.1% |
| 30,000–40,000 | 30 | 7.0% |
| 40,000–50,000 | 36 | 8.5% |
| 50,000–60,000 | 45 | 10.6% |
| 60,000–70,000 | 53 | 12.4% |
| 70,000–80,000 | 42 | 9.9% |
| 80,000–90,000 | 43 | 10.1% |
| 90,000–100,000 | 32 | 7.5% |
| 100,000–110,000 | 18 | 4.2% |
| 110,000–120,000 | 15 | 3.5% |
| 120,000–130,000 | 17 | 4.0% |
| 130,000–140,000 | 4 | 0.9% |
| 140,000–150,000 | 6 | 1.4% |
| 160,000–170,000 | 5 | 1.2% |
| 200,000+ | 2 | 0.5% |
Source: NHTSA Office of Defects Investigation, public domain. Complaint counts reflect what owners reported and are not a measure of failure rate per vehicle sold.
What this can and cannot tell you: these are complaints owners chose to file, not a failure rate. Popular models accumulate more of them simply by being common. How this is built.
Owners filed 773 complaints with NHTSA about the 2006–2008 Audi A4, and 426 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
Failures are spread across the mileage range, with the middle half between 38,000 and 88,000 miles. The median is 63,241 miles.
The most-reported areas are the airbag system (39.8% of complaints, typically around 82,000 miles), the exterior lighting (23.3% of complaints, typically around 58,000 miles), the engine (5.8% of complaints, typically around 84,000 miles).
4 recall campaigns cover this generation.
If you arrived asking “is it reliable?” — this page answers the version of that question the data can support: which problems owners reported, and at what mileage.
How many miles does a 2006–2008 Audi A4 last?
Half of the failure reports on the 2006–2008 Audi A4 were filed by 63,000 miles and 90% by 112,000 miles — figures drawn from 426 NHTSA complaints that record an odometer reading, so they time reported failures, not the cars whose owners never filed one.
2 reports (0.5%) came in past 200,000 miles — each one proof a A4 reached that mileage, not that it died there.
Before you buy a 2006–2008 A4: the 3-minute check
Generated from 426 mileage-tagged complaints, 4 recall campaigns, 3 documented problem areas. Print this page — the checklist survives print.
- Run the VIN at nhtsa.gov/recalls. 4 campaigns cover this generation; an open recall is a free repair you can make the seller's problem.
- Check engine — high pressure fuel pump cam follower on 2006–2008 (2.0T FSI only) cars. The bucket-style cam follower that rides between the intake camshaft lobe and the mechanical high pressure fuel pump wears through and can be punctured, after which the pump plunger contacts and destroys the camshaft…
- Check engine — timing chain tensioner on 2006–2008 cars. Hydraulic timing chain tensioner wear on the FSI engines, permitting chain slack and, in the worst case, timing jump.
- Check engine — intake valve carbon deposits on 2006–2008 (FSI engines) cars. Direct injection means no fuel washes the intake valves, so carbon accumulates and causes misfires, rough idle and power loss; requires periodic walnut-blasting.
- End with a pre-purchase inspection of this car. Aggregate data describes the population; the example in front of you has its own history.
For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 38,000 and 88,000 miles, with a median of 63,000. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.
On inspection, the airbag system and the exterior lighting are where this generation's reports concentrate, so those are the areas worth a specific look. The exterior lighting in particular shows a median failure mileage of 58,000, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
What fails, and when
Figure 2 · Audi A4 2006–2008
When each system fails
Bar spans the middle half of reports; the notch inside each bar is the median. Miles at failure on a proportional scale — equal distances are equal ratios, not equal miles.
- Engine and its cooling system23 reports35,0009,000–72,000Engine and its cooling system: 23 reports, median 35,000 miles, middle half 9,000 to 72,000 miles.
- Throttle and speed control22 reports51,00020,000–72,000Throttle and speed control: 22 reports, median 51,000 miles, middle half 20,000 to 72,000 miles.
- Exterior lighting180 reports58,00042,000–78,000Exterior lighting: 180 reports, median 58,000 miles, middle half 42,000 to 78,000 miles.
- Transmission and driveline37 reports66,00043,000–96,000Transmission and driveline: 37 reports, median 66,000 miles, middle half 43,000 to 96,000 miles.
- Electrical system40 reports68,00038,000–89,000Electrical system: 40 reports, median 68,000 miles, middle half 38,000 to 89,000 miles.
- Airbag system308 reports82,00062,000–112,000Airbag system: 308 reports, median 82,000 miles, middle half 62,000 to 112,000 miles.
- Engine45 reports84,00061,000–95,000Engine: 45 reports, median 84,000 miles, middle half 61,000 to 95,000 miles.
- Your odometer — appears after you enter it in “Where your car sits”
Ordered by median mileage, earliest first. The first 12,000 miles are shaded: that is the boundary this site uses between a manufacturing defect and ordinary wear, not a property of the world.
Source: NHTSA Office of Defects Investigation, public domain.
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Airbag system | 308 | 39.8% | 82,000 | 62,000–112,000 |
| Exterior lighting | 180 | 23.3% | 58,000 | 42,000–78,000 |
| Engine | 45 | 5.8% | 84,000 | 61,000–95,000 |
| Electrical system | 40 | 5.2% | 68,000 | 38,000–89,000 |
| Transmission and driveline | 37 | 4.8% | 66,000 | 43,000–96,000 |
| Engine and its cooling system | 23 | 3.0% | 35,000 | 9,000–72,000 |
| Throttle and speed control | 22 | 2.8% | 51,000 | 20,000–72,000 |
| Problems owners could not categorise | 17 | 2.2% | — | — |
| Fuel and propulsion system | 17 | 2.2% | 83,000 | 76,000–105,000 |
| Fuel system | 14 | 1.8% | 69,000 | 33,000–84,000 |
Where your car sits
Failure reports by the odometer reading they were filed at. Pick the anchor nearest your car — or type the exact mileage: your marker lands on this curve and on the timing chart above.
Figure 3 · Audi A4 2006–2008 · 426 reports with mileage
Share of reports below each mileage
Share of mileage-tagged reports filed at or below each odometer reading. Steps rise only at bin edges, by exact counted shares.
- 60,000 mi — 44% of reports below
- 90,000 mi — 77% of reports below
- 120,000 mi — 92% of reports below
- Median — the staircase crosses the 50% line here
- Your odometer — appears after you enter it below
The staircase tops out at 100%: the remaining 0.5% of reports (2) came above 200,000 miles.
Nothing is smoothed or interpolated. Linear axis, same as Figure 1.
Source: NHTSA Office of Defects Investigation, public domain.
At 60,000 miles
44% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
In the reporting window
- Exterior lighting — middle half 42,000–78,000 mi
- Electrical system — middle half 38,000–89,000 mi
- Transmission and driveline — middle half 43,000–96,000 mi
- Engine and its cooling system — middle half 9,000–72,000 mi
- Throttle and speed control — middle half 20,000–72,000 mi
Mostly reported later
- Airbag system — middle half 62,000–112,000 mi
- Engine — middle half 61,000–95,000 mi
At 90,000 miles
77% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Exterior lighting — median 58,000 mi
- Electrical system — median 68,000 mi
- Engine and its cooling system — median 35,000 mi
- Throttle and speed control — median 51,000 mi
In the reporting window
- Airbag system — middle half 62,000–112,000 mi
- Engine — middle half 61,000–95,000 mi
- Transmission and driveline — middle half 43,000–96,000 mi
At 120,000 miles
92% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Airbag system — median 82,000 mi
- Exterior lighting — median 58,000 mi
- Engine — median 84,000 mi
- Electrical system — median 68,000 mi
- Transmission and driveline — median 66,000 mi
- Engine and its cooling system — median 35,000 mi
- Throttle and speed control — median 51,000 mi
Which systems, and when
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 63,241 miles; the figures below show which parts of the car run ahead of that and which run behind.
The airbag system accounts for 39.8% of complaints (308 reports, 54 of them with a mileage figure), with a median of 82,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 62,000 and 112,000 miles.
A single system taking 39.8% of all complaints is a concentration worth noting. It means that for this generation, most of what owners reported came back to one area of the car rather than being distributed across many small faults.
The exterior lighting accounts for 23.3% of complaints (180 reports, 147 of them with a mileage figure), with a median of 58,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 42,000 and 78,000 miles.
The engine accounts for 5.8% of complaints (45 reports, 35 of them with a mileage figure), with a median of 84,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 61,000 and 95,000 miles.
The electrical system accounts for 5.2% of complaints (40 reports, 31 of them with a mileage figure), with a median of 68,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 38,000 and 89,000 miles.
The transmission and driveline accounts for 4.8% of complaints (37 reports, 34 of them with a mileage figure), with a median of 66,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 43,000 and 96,000 miles.
The engine and its cooling system accounts for 3.0% of complaints (23 reports, 19 of them with a mileage figure), and it fails early — a median of 35,000 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 9,000 and 72,000 miles.
Differences between model years
Within this generation, complaint volume is not constant across model years. The 2006 model year drew the most — 343 complaints — while 2008 drew the fewest at 204. The median year sits at 226.
Recalls and what they cover
NHTSA records 4 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.
The campaigns cluster around the airbag system (4). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.
Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.
Reported severity
What owners reported alongside the failure itself, out of 773 complaints against this generation:
- Crashes
- 25 (3.2%)
- Fires
- 6
- Injury reports
- 15
- Fatality reports
- 0
These flags are self-reported by complainants and unverified by NHTSA; one report can carry several flags, so the counts overlap and do not sum to a total. They are not adjusted for how many of these vehicles are on the road. No chart is drawn here on purpose: overlapping counts spanning very different magnitudes cannot be honestly encoded as lengths.
Documented problems
Engine — High Pressure Fuel Pump Cam Follower 2006–2008 (2.0T FSI only)
The bucket-style cam follower that rides between the intake camshaft lobe and the mechanical high pressure fuel pump wears through and can be punctured, after which the pump plunger contacts and destroys the camshaft lobe, and metal debris enters the oil. Symptoms are power loss, rough running and a check-engine light. The follower is a wear item that owners must inspect periodically; the defining B7 2.0T FSI failure.
Engine — Timing Chain Tensioner 2006–2008
Hydraulic timing chain tensioner wear on the FSI engines, permitting chain slack and, in the worst case, timing jump.
Engine — Intake Valve Carbon Deposits 2006–2008 (FSI engines)
Direct injection means no fuel washes the intake valves, so carbon accumulates and causes misfires, rough idle and power loss; requires periodic walnut-blasting.
By model year
| Year | Complaints | With mileage |
|---|---|---|
| 2006 | 343 | 235 |
| 2007 | 226 | 98 |
| 2008 | 204 | 93 |
Recalls (4) — is your car included?
Jun 2018 · 2006–2008 · Air BagsAn inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in…
The defect. 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 occur
What can happen. An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
The free fix. Audi has notified owners, and dealers will replace the passenger frontal air bag with an alternate remedy part, free of charge. The recall began June 29, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69R7. Note: This recall supersedes recalls 16V382, 17V032 and 18V004 and includes vehicles that may have had their air bag previously replaced under one of those campaigns.
Mar 2018 · 2006–2008 · Air BagsAn inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury…
The defect. 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,
What can happen. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
The free fix. Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began March 30, 2018. Owners may contact Audi customer service at 1-800-253-2834. Note: This recall has been superseded by recall number 18V427.
Apr 2017 · 2006–2008 · Air BagsAn inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury…
The defect. 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, Distri
What can happen. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
The free fix. Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. Owner notification letters were mailed April 28, 2017. Owners may contact Audi customer service at 1-800-822-2834.
Oct 2016 · 2008 · Air BagsIf the air bag control unit fails, the air bags may not deploy in the event of a crash, increasing the risk…
The defect. Volkswagen Group of America, Inc. (VW) is recalling certain model year 2008-2009 Audi A4, A5, and Q5 vehicles. In the affected vehicles, the air bag control units may corrode and fail.
What can happen. If the air bag control unit fails, the air bags may not deploy in the event of a crash, increasing the risk of occupant injury.
The free fix. Audi will notify owners, and dealers will replace the air bag control unit, free of charge. The recall began October 2016. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69O1.
What owners reported
No failure, accidents or injuries. The problem is a lag in acceleration at throttle tip in. The lag can cause dangerous situations when pulling in front of traffic and the car fails to accelerate in a timely manner. It has caused us to become hesitant when driving the vehicle and we lack confidence when pulling into…
2006 · 5 miles · Throttle and speed control
Right and left dipped headlight warnings appear frequently since the year i purchased this car. The headlight flickers/pulses, then goes out and the warning appears. Turning lights to the off position and back on generally brings both headlights back on but the same headlight or other side will often fail moments…
2006 · 12,000 miles · Exterior lighting
This problem has occurred many times since i have owned the car with increasing frequency. Now the issue is happening every time i drive the car. The issue is that when my lights are on, they will flicker and go out. I will get an error message that says "dipped headlight". The only solution to this problem is to flip…
2006 · 12,000 miles · Exterior lighting
I have the a4 w/ 3.1 Liter v6. Almost immediately after purchase, transmission exhibited bumpy lurching start from stop. Audi diagnose said that's symptomatic of this transmission and engine combination. Nothing could be done to prevent. Within 1st year, the car would stall and completely shut down, necessitating a…
2006 · 12,000 miles · Engine
Built from 426 NHTSA complaints with mileage · snapshot 2026-08-18 · open data · reproduce this page