Built from official NHTSA complaint and recall data · data through 07/14/2026
Elevated complaint levelIts most-reported problem — Fuel System, Gasoline:storage:tank Assembly — runs 2.0× the fleet median for that category across the 1401 model-years tracked on this site.
217Complaints
9Recalls
12Crashes
23Fires
15Injured
2Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Fuel System, Gasoline:storage:tank Assembly (7.8% of complaints) — is covered by 2 NHTSA recall campaigns.
Fuel System, Gasoline:storage:tank Assembly complaints here are 2.0× the median for that category across the 1401 model-years tracked on this site.
All 6 of the most-reported categories on this page are backed by a recall or open investigation.
Complaint category
Reports
Official status
Reference
Fuel System, Gasoline:storage:tank Assembly
17 · 7.8%
Recalled
Recall 01V157000 · Recall 99V058000
Electrical System
17 · 7.8%
Recalled
Recall 06V198000 · Recall 04V133000
Vehicle Speed Control
14 · 6.5%
Recalled
Recall 04V495000
Fuel System, Other
11 · 5.1%
Recalled
Recall 01V157000 · Recall 99V058000
Steering:linkages:tie Rod Assembly
10 · 4.6%
Recalled
Recall 99V248000 · Recall 00V414000
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
10 · 4.6%
Recalled
Recall 99V131001
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 217 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
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. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
RUNNING OUT OF FUEL WITHOUT WARNING WHILE THE FUEL GAUGE INDICATES THAT THERE IS SUFFICIENT FUEL IN THE TANK LEAD TO SAFETY PROBLEMS. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
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. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
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. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings
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. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Fuel System, Gasoline:storage:tank Assembly:filler Pipe And Cap
IN THE PRESENCE OF AN IGNITION SOURCE, FUEL SPRAY COULD RESULT IN FIRE OR POSSIBLE PERSONAL INJURY. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“VEHICLE WAS RECALLED FOR A FAULTY FUEL GAUGE. ABOUT FOUR YEARS LATER THE GAUGE HAD STOPPED PROVIDING ACCURATE FUEL READINGS.”NHTSA complaint 10095113 — filed 09/28/2004 · FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
“WHEN PUMPING VEHICLE WITH GAS IT WILL SPILL OUT OF VEHICLE WHEN IT IS SUPPOSED TO STOP ONCE IT'S FULL. THIS HAS HAPPEND AT TWO…”NHTSA complaint 893160 — filed 07/25/2001 · FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
“FUEL SENDING UNIT WAS REPLACED VIA RECALL IN DEC 2000 AND THE EXACT SAME THING IS HAPPENING AGAIN. AUDI'S RECALL DID NOT FIX THE PROBLEM…”NHTSA complaint 745275 — filed 05/13/2001 · FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 1999 Audi A6?
Fuel system, gasoline:storage:tank assembly issues are the most-reported category, cited in 17 of 217 NHTSA complaints (7.8%), followed by electrical system (17), vehicle speed control (14), fuel system, other (11). Complaints are unverified owner reports.
How many complaints does the 1999 Audi A6 have?
217 complaints were on file with NHTSA as of 07/14/2026. Of those, 12 involved a crash, 23 involved a fire, and 15 reported injuries. 2 deaths were reported.
Does the 1999 Audi A6 have any recalls?
Yes — 9 NHTSA safety recall campaigns, including campaign 20V056000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 1999 Audi A6's reported problems?
6 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.
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