Passenger side: inflator module
Risk. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
NHTSA has logged 120 owner complaints about the 2009 Audi A4, most often about the engine. It is covered by 2 safety recalls, and for recall 17V-032 the manufacturer reports only 17% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 23, 2024. Updated daily. Photo: IFCAR, Public domain.
120 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 44 | 2 |
| Air bags | 33 | 3 |
| Steering | 15 | 1 |
| Fuel/propulsion system | 7 | 1 |
| Visibility | 6 | 0 |
| Power train | 6 | 1 |
| Structure | 6 | 1 |
| Suspension | 5 | 1 |
| Engine and engine cooling | 5 | 0 |
| 8 other systems | 16 | 4 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Risk. 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.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.
84kmiles, median
Based on the odometer reading in 36 engine complaints. 78% were reported before 100,000 miles.
Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.
$2,615median
If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the A4 median. How we score
2009 Audi A4 4-DR. w/SAB in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.


Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
The turbo sounds like it's not going in/out of gear, oil going into spark plugs, radiator fluid leaking system getting real hot. Low engine poer picking up speed an issue. Air bag rear brake light malfunction, oil pressure not correct
PURCHASED VEHICLE 8/15/19 AT SELECT MOTORS INC, SMYRNA TN. CLEAN CAR FAX REPORT. ONGOING OIL CONSUMPTION ISSUES. INTAKE CAMSHAFT LOCKED UP FOLLOWING OIL CONSUMPTION TEST AT AUDI OF NASHVILLE. NOT DRIVEABLE NOW. AUDI OF NASHVILLE QUOTED CYLINDER HEAD AND ASSOCIATED PARTS, TIMING CHAIN, TENSIONER,…
ENGINE COOLANT AND ENGINE LIGHT ETC CAME ON. THE VEHICLE WAS ON THE HIGHWAY. I HAVE A SMALL CHILD. BASED ON THE AUDI MESSAGE MY VEHICLE COULD CATCH ON FIRE.PLEASE SEND ME INFO TO HAVE THIS PROBLEM CORRECTED.
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.