NHTSA lists 7 safety recalls and 190 owner complaints for the 1999 Audi A4. Most complaints involve service brakes, hydraulic (81) and engine and engine cooling (28). The EPA rates it 19–24 mpg combined.
Volkswagen Group of America, Inc. (VW) is recalling certain 2000-2001 TT Roadster, 2000 TT Coupe, 1999 Audi A8, 1998-2000 Audi A6, and 1999-2000 Audi A4 vehicles equipped with Non-Azide Driver air bag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, possibly causing the air bag to deploy improperly in the event of a crash.
The Gates Corporation (Gates) is recalling certain aftermarket Tru-Flow Water Pumps, part number TFW 41127, sold at certain NAPA Auto Parts and/or installed by automotive service technicians after November 1, 2013 (and manufactured August 2013 through October 2013) that have a black-colored pulley/sprocket or do not have 'US9377' stamped on the water pump housing. These service replacement parts were sold for use in model year 1999-2005 Audi A4, 2000-2006 Audi TT, 1998-2005 Volkswagen Beetle, 1999-2006 Golf, 1999-2008 and 2011-2013 Volkswagen Jetta, and 2000-2005 Volkswagen Passat. In the affected water pumps, the pulley or sprocket that turns the timing belt may develop microfractures causing the timing belt to fail.
CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each A4 model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 1996 | 92 |
| 1997 | 99 |
| 1998 | 258 |
| 1999 | 190 |
| 2000 | 96 |
| 2001 | 130 |
| 2002 | 189 |
| 2003 | 215 |
| 2004 | 189 |
| 2005 | 219 |
| 2006 | 298 |
| 2008 | 191 |
| 2009 | 144 |
| 2010 | 64 |
| 2011 | 42 |
| 2012 | 45 |
| 2013 | 111 |
| 2014 | 76 |
| 2015 | 44 |
| 2016 | 26 |
| 2017 | 83 |
| 2019 | 8 |
| 2020 | 158 |
“MY AUDI, ALONG WITH THOUSANDS OF OTHERS HAVE HAD THEIR ABS CONTROL UNIT MALFUNCTION BECAUSE OF DESIGN. THIS MALFUNCTION CAUSES THE ABS TO NOT WORK ON THE AFFECTED VEHICLE. VOLKSWAGEN, THE COMPANY THAT PRODUCES AUDIS AND VWS ACTUALLY RECALLED THIS EXACT PART ON THEIR VW VEHICLES, BUT FOR SOME REASON REFUSES TO CORRECT THE PROBLEM FOR THEIR AUDI CUSTOMERS. THE COST TO REPLACE THIS CONTROL UNIT IS $1,400 - $1,700, AND AS SUCH I HAVE BEEN DRIVING MY VEHICLE WITHOUT ITS ABS FUNCTIONING. BELOW IS A DESCRIPTION OF THE RECALL FOR THIS EXACT PART, BUT ON THE VW JETTA: "2002 VOLKSWAGEN JETTA GLS NHTSA RECALL ID NUMBER: 02V031000 RECALL DATE: JAN 31, 2002 COMPONENT: SERVICE BRAKES, HYDRAULIC:ANTILOCK POTENTIAL UNITS AFFECTED: 55000 SUMMARY: ON SOME PASSENGER VEHICLES, SHORT CIRCUITS CAN OCCUR WITHIN THE ELECTRONIC CONTROL UNIT OF THE ANTI-LOCK BRAKING SYSTEM (ABS). CONSEQUENCE: THIS CAN RESULT IN A FIRE. REMEDY: DEALERS WILL REPLACE THE ABS CONTROL UNIT. OWNER NOTIFICATION BEGAN MARCH 8, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT VOLKSWAGEN AT…”
“THE CAR IS EXPERIENCING UNINTENDED ACCELERATION, USUALLY, BUT NOT ALWAYS, AFTER HEAVY ACCELERATION. OVER 10 OCCURRENCES. CANNOT REMEDY BY PULLING BACK THE ACCELERATOR. CAR MUST BE TURNED OFF AND THE ENGINE MUST RECORD 0 RPM TO REMEDY THE PROBLEM. *TR”
“JANUARY 17, 2007, 8 DEGREES - DRY ROAD CONDITIONS I ACCELERATED UP A STEEP HILL ON MY WAY TO WORK WHEN AT THE TOP OF THE HILL I TOOK MY FOOT OFF THE ACCELERATOR AND THE VEHICLE'S RPMS RACED TO 7,000. I POPPED THE CAR INTO NEUTRAL AND PUNCHED THE GAS PEDAL AND THE CAR REDUCED SPEED AND RPMS THIS IS VERY DANGEROUS. THIS IS MY SECOND COMPLAINT - IT HAPPENED LAST WINTER WITH WET ROAD CONDITIONS BUT VERY VERY COLD. I TOOK THE CAR TO THE DEALER LAST YEAR AND THEY CLAIM THERE IS NOTHING WRONG. I HAD THE ACCELERATOR CABLE REPLACED. THERE IS A RECALL ON THE AUDI A-6 AND THE DEALER CLAIMS MY CAR DOES NOT QUALIFY. ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 2.8L, V6 5-VALVE ENGINES, AND AUTOMATIC TRANSMISSIONS, WHILE DRIVING DURING EXTREMELY LOW AMBIENT TEMPERATURES THE THROTTLE MAY FREEZE IN AN OPEN POSITION DUE TO ICE ACCUMULATING IN THE THROTTLE BODY. IF THIS OCCURS, THE VEHICLE MAY FAIL TO REDUCE SPEED WHEN THE DRIVER LIFTS HIS/HER FOOT FROM THE GAS PEDAL. THIS LOSS OF VEHICLE CONTROL COULD RESULT IN A CRASH WITHOUT WARNING. SOMETHING MUST BE DONE TO MAKE AUDI REALIZE THIS IS VERY DANGEROUS AND APPLIES TO THE A-4 NOT JUST THE A-6. *NM *NM”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| A4 Man 5-spd, 4 cyl, 1.8 L, Turbo · Front-Wheel Drive | 20 | 29 | 24 | $3,300 | 370 |
| A4 Auto 5-spd, 4 cyl, 1.8 L, Turbo · Front-Wheel Drive | 18 | 28 | 22 | $3,600 | 404 |
| A4 Avant quattro Man 5-spd, 4 cyl, 1.8 L, Turbo · 4-Wheel or All-Wheel Drive | 19 | 26 | 22 | $3,600 | 404 |
| A4 quattro Man 5-spd, 4 cyl, 1.8 L, Turbo · 4-Wheel or All-Wheel Drive | 19 | 26 | 22 | $3,600 | 404 |
| A4 Man 5-spd, 6 cyl, 2.8 L · Front-Wheel Drive | 18 | 26 | 21 | $3,800 | 423 |
| A4 Auto 5-spd, 6 cyl, 2.8 L · Front-Wheel Drive | 16 | 27 | 20 | $4,000 | 444 |
| A4 Avant quattro Man 5-spd, 6 cyl, 2.8 L · 4-Wheel or All-Wheel Drive | 17 | 25 | 20 | $4,000 | 444 |
| A4 quattro Man 5-spd, 6 cyl, 2.8 L · 4-Wheel or All-Wheel Drive | 17 | 25 | 20 | $4,000 | 444 |
| A4 Avant quattro Auto 5-spd, 4 cyl, 1.8 L, Turbo · 4-Wheel or All-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| A4 Avant quattro Auto 5-spd, 6 cyl, 2.8 L · 4-Wheel or All-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| A4 quattro Auto 5-spd, 4 cyl, 1.8 L, Turbo · 4-Wheel or All-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| A4 quattro Auto 5-spd, 6 cyl, 2.8 L · 4-Wheel or All-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
7 safety recalls as of Oct 27, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 190 complaints with NHTSA. The most-cited components are service brakes, hydraulic (81), engine and engine cooling (28), vehicle speed control (16). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 1999 Audi A4 at 19–24 mpg combined, depending on engine and drivetrain (12 versions rated).