1999 Audi A6 Problems, Complaints & Recalls

Source: NHTSA · Updated Mar 22, 2021 · 217 owner complaints analyzed

Compared with other A6 years
Far more complaints than other years 1st of 32 for complaints
NHTSA crash rating
Not rated

Owners have filed 217 complaints with NHTSA about the 1999 Audi A6. That is the most of any A6 model year in the database (32 years). The most reported problem area is electrical system (37 complaints, 17%), typically at around 91,000 miles. Complaints mention 12 crashes, 23 fires, 15 injuries. There are 9 safety recalls covering this model year. NHTSA has opened 8 defect investigations involving it.

Audi A6
Audi_A6_C9_IAA_2025 at IAA 2025. Representative photo; appearance varies by model year. Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

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Most common 1999 Audi A6 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System37 · ~91,000 mi
Service Brakes, Hydraulic31 · ~90,975 mi
Fuel System, Gasoline26 · ~53,600 mi
Vehicle Speed Control24 · ~75,900 mi
Steering19 · ~62,153 mi
Engine and Engine Cooling17 · ~72,500 mi
Fuel System, Other15 · ~116,501 mi
Suspension15 · ~81,300 mi
Power Train12 · ~80,903 mi
Air Bags8 · ~61,370 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System3717%91,000——
Service Brakes, Hydraulic3114%90,975——
Fuel System, Gasoline2612%53,600——
Vehicle Speed Control2411%75,900——
Steering199%62,153——
Engine and Engine Cooling178%72,500——
Fuel System, Other157%116,501——
Suspension157%81,300——
Power Train126%80,903——
Air Bags84%61,370——
Seats84%92,950——
Structure84%74,000——
Visibility84%49,750——
Exterior Lighting73%———
Service Brakes, Air52%75,000——
Service Brakes, Electric31%115,200——
Tires31%125,846——
Unknown or Other31%97,500——
Wheels31%———
Seat Belts21%———
Equipment10%———
Fuel/propulsion System10%127,000——
Interior Lighting10%70,000——
Service Brakes10%167,770——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2004, with 54 complaints
1999: 241999242000: 25252001: 112001112002: 772003: 162003162004: 54542005: 162005162006: 13132007: 202007202008: 882009: 5200952010: 552011: 5201152012: 332013: 1201312015: 112019: 1201912020: 112021: 120211

n = 217 complaints · Source: NHTSA

1999 Audi A6 recalls (9)

Tap a recall to see the problem, the risk and the fix.

Air bags:frontal:driver side:inflator moduleJan 31, 2020 · NHTSA campaign 20V056000 · 106,857 vehicles

Problem: 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.

Risk: In the event of a crash necessitating air bag deployment, the air bag may not properly protect the occupant, increasing the risk of serious injury or death.

Fix: Dealers will replace the driver frontal air bag inflator with an alternative inflator when the parts become available, free of charge. Owner notifications were mailed September 21, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69BT.

Electrical systemJun 5, 2006 · NHTSA campaign 06V198000 · 70,512 vehicles

Problem: On certain passenger vehicles equipped with halogen low beam headlights, certain connector pins in the headlight switch connector come into contact with each other causing a short circuit. Note: vehicles with xenon low beam headlights are not affected because the circuit in these vehicles contains a fuse, which precludes excessive current flow in the case of a short circuit. Audi s6 and s6 avant vehicles are all equipped with xenon low beam headlights and, therefore, are not longer affected by this recall.

Risk: This condition could lead to overheating or fire.

Fix: Dealers will reroute the wiring harness by installing a jumper wiring harness. The recall began on december 16, 2006. Owners may contact audi at 1-800-822-2834.

Vehicle speed controlOct 12, 2004 · NHTSA campaign 04V495000 · 28,300 vehicles

Problem: 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.

Risk: 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.

Fix: Audi will install a replacement throttle body kit free of charge. The recall began on october 29, 2004. Owners may contact audi at 1-800-822-2834. Owners of vehicles which are not registered in the cold-weather states of alaska, colorado, connecticut, delaware, idaho, illinois, indiana, iowa, maine, maryland, massachusetts, michigan, minnesota, montana, nebraska, nevada, new hampshire, new jersey, new york, north dakota, ohio, oregon, pennsylvania, rhode island, south dakota, vermont, washington, wisconsin, and wyoming, will be notified of a service action, under which they will be provided the free remedy upon request.

Electrical systemMar 18, 2004 · NHTSA campaign 04V133000 · 172,866 vehicles

Problem: On certain passenger vehicles, if a driver's knees push against the knee bolster (crash element) located under the dashboard, it can contact the headlight switch wiring harness, and an electrical short could occur.

Risk: A fire could originate in the left dashboard area.

Fix: Dealers will install a protective covering on the knee bolster (crash element). In addition, the wiring harness as well as the felt protector on the left side of the dashboard carrier will be checked, and replaced if necessary. The recall began on july 26, 2004. Owners should contact audi at 1-800-822-2834.

Fuel system, gasoline:storage:tank assemblyMay 3, 2001 · NHTSA campaign 01V157000 · 70,000 vehicles

Problem: Vehicle description: passenger vehicles. Sulfur in fuel interacts with certain additives found in widely available gasoline causing sulfur to become deposited on the contact points of three fuel sending units mounted inside the fuel tank. This could cause the fuel gauge to read full while the fuel tank may not in fact be full or could be empty.

Risk: Running out of fuel without warning while the fuel gauge indicates that there is sufficient fuel in the tank lead to safety problems.

Fix: Dealers will remove the existing fuel level sending units and replace them with fuel level sending units using a new alloy composed of gold, silver, and a small amount of nickel, which will not chemically react with sulfur. Vw/audi will also call back vehicles that were repaired under a previous recall last june in order to install the updated fuel sending units nhtsa 00v137/audi lb). Owner notification began may 1, 2001. 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 audi at 1-866-892-2834.

Steering:linkages:rod:relay:connectingDec 6, 2000 · NHTSA campaign 00V414000 · 83,000 vehicles

Problem: Vehicle description: passenger vehicles. The tie rods of the steering assembly are protected on each side by a seal to prevent moisture and dust particles from entering the swivel bearing mechanism. It is possible that some tie rod seals may not seal properly.

Risk: If moisture and/or dust particles enter the swivel bearing mechanism, the swivel bearing could wear over time diminishing the steering control of the vehicle.

Fix: Dealers will replace the tie rods.

Steering:linkages:rod:relay:connectingSep 13, 1999 · NHTSA campaign 99V248000 · 51,900 vehicles

Problem: Vehicle description: passenger vehicles. The tie rods of the steering assembly are protected on each side by a seal to prevent moisture and dust particles from entering the swivel bearing mechanism. It is possible that some tie rod seals may not seal properly.

Risk: If moisture and/or dust particles enter the swivel bearing mechanism, the swivel bearing could wear over time diminishing the steering control of the vehicle.

Fix: Dealers will replace the tie rods.

Service brakes, hydraulic:power assist:vacuum:hoses, lines/piping, and fittingsMay 21, 1999 · NHTSA campaign 99V131001 · 88,121 vehicles

Problem: Vehicle description: passenger vehicles equipped with automatic transmissions. A control valve in the vacuum hose connecting the brake booster to the intake manifold may not open or close fully at temperatures below -4 f under certain driving conditions.

Risk: This condition could cause insufficient vacuum to be provided to the brake booster.

Fix: Dealers will install a vacuum by-pass system into vehicles operated in these states which is designed to provide sufficient vacuum for full brake assist under all weather conditions.

Fuel system, gasoline:storage:tank assembly:filler pipe and capMar 22, 1999 · NHTSA campaign 99V058000 · 27,964 vehicles

Problem: Vehicle description: passenger vehicles equipped with quattro drive system which employs a fuel and fuel vapor leak detection system. If the vehicle is refueled shortly after the engine is started, and is kept running while being refueled, the fuel vapor recovery system could produce sufficient back pressure to cause fuel to be ejected after a complete fill-up when the fuel pump nozzle is removed from the filler neck.

Risk: In the presence of an ignition source, fuel spray could result in fire or possible personal injury.

Fix: Vw is providing a new page for the owner's manual and also requesting owners to make an appointment with their dealers to have a label containing important refueling instructions installed inside of the fuel filler door. Dealers will also remove the tire pressure label and replace it with a new label affixed to the fender well at the right rear door.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Driver's side dash fire (RQ06003) — opened Feb 27, 2006, closed Jul 20, 2006, led to recall 06V198000.
  • Stuck-open throttle (EA04017) — opened Jun 30, 2004, closed Feb 10, 2005, led to recall 04V495000.
  • Stuck-open throttle (PE04023) — opened Mar 5, 2004, closed Jun 30, 2004.
  • Drivers side dash fire (EA03025) — opened Nov 25, 2003, closed May 7, 2004, led to recall 04V133000.
  • Drivers side dashboard fire (PE03035) — opened Jul 25, 2003, closed Nov 25, 2003.
  • Steering wheel heater overheats (PE03019) — opened May 15, 2003, closed Sep 17, 2003.
  • Brake and clutch pedal bracket (PE02008) — opened Jan 23, 2002, closed Jul 12, 2002.
  • Fuel expulsion (PE99001) — opened Jan 1, 1999, closed Mar 24, 1999, led to recall 99V058000.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Tl* the contact owns a 1999 audi a6. The contact received notification of nhtsa campaign number: 20v056000 (air bags) however, the part to do the recall repair was unavailable. The local dealer was not contacted. The vehicle was not diagnosed nor repaired. The contact stated that the manufacturer…

Air Bags · received Mar 22, 2021 · NHTSA complaint 11404182

Tl* the contact owns a 1999 audi a6. The contact received notification of nhtsa campaign number: 20v056000 (air bags) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repaired. Neither the dealer…

Air Bags · received Jul 17, 2020 · NHTSA complaint 11339906

Takata recall i've had to replace a wheel bearing and axel 2x @ $550 each time. Car wouldn't align right, so i replaced the tires several times due to the wearing on one side. The calipers won't come off when changing the brakes and rotors. The automatic windows would randomly roll down sometimes…

Electrical System · received Apr 9, 2019 · NHTSA complaint 11194856

While driving 60 mph on the freeway, the car accelerated on its own to 72 mph as if going into cruise control. Confirmed the cruise control switch was turned off. Applied the brakes seven times. Car did not respond to braking. Engine seemed to race against the brakes. I put the car in neutral…

Vehicle Speed Control · received Jan 28, 2015 · NHTSA complaint 10679584

Tl* the contact owns a 1999 audi a6. The contact stated that while driving 25 mph, smoke and flames began to enter the vehicle through the air vents. The contact moved the vehicle over and extinguished the fire with a fire extinguisher. The contact stated that the passenger sustained burns to the…

Electrical System · received Mar 6, 2013 · NHTSA complaint 10501872

Other Audi A6 years

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Frequently asked questions

What are the most common problems with the 1999 Audi A6?

Owners most often report electrical system, service brakes, hydraulic, fuel system, gasoline problems. The top one, electrical system, accounts for 37 complaints.

Was there a recall on the 1999 Audi A6?

Yes, 9 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 1999 Audi A6 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other A6 model years, the 1999 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.