The worst 2009 Audi S4 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 2
Air bags: frontal: passenger side: inflator module
- What is wrong
- 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.
- Risk
- An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
- Remedy
- 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.
Recall number 18V427000 · Recall details
Air bags: frontal: passenger side: inflator module
- What is wrong
- 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.
- Risk
- An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
- Remedy
- 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.
Recall number 17V032000 · Recall details
Technical service bulletins for the 2009 Audi S4 225
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin provides information when the remote control key is inoperative.
- This bulletin contains repair information for when there is a creaking/squeaking from the steering column...
- This bulletin provides information pertaining to MMI Navigation database concerns.
- This bulletin provides information when the parking assistance provides false warnings.
- This bulletin provides general information about the outside air temperature reading.
- This bulletin provides information on the VAS 611 015 PICO-NVH tool for professional noise analysis.
- This bulletin provides information pertaining to when there are foreign objects inside of a headlight or...
- This bulletin provides damage assessment guidelines for textile seat covers.
- This bulletin provides information for when unauthorized/unjustified DTC memory entries are captured in...
- This bulletin provides instructions regarding unauthorized chip tuning (TD1).
2009 Audi S4 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.2L 8‑cyl | 4WD | 13-14 | 19-21 | 15-16 |
Compare the 2009 Audi S4
Other model years
199219931994199520002001200220032004200520062007200820102011201220132014201520182019202020212022
Questions about the 2009 Audi S4
Is the 2009 Audi S4 reliable?
Owners have filed 0 complaints about the 2009 Audi S4.
What is the most common problem with the 2009 Audi S4?
There are not enough complaints to tell.
How many recalls does the 2009 Audi S4 have?
2 recalls, covering air bags.
What gas mileage does the 2009 Audi S4 get?
Official estimates for the 2009 Audi S4 range from 15 to 16 mpg combined. The most efficient version (4.2L 8-cyl, 4WD) gets 13-14 city and 19-21 highway.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2009 Audi S4?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history