2004 Audi A8 — reported problems and evidence

What owners report: issue areas

Owner complaints are classified by the system they concern: 31 classifications in all. One complaint can concern several systems, so these add up to more than the number of complaints.

Visibility (glass, wipers, mirrors)6 (19.4%)Official recall records for this system: 10, covering model years 2007–2026.
Speed control & accelerator5 (16.1%)
Brakes4 (12.9%)
Electrical system4 (12.9%)Official recall records for this system: 2, covering model years 2010–2021.
Suspension3 (9.7%)Official recall records for this system: 6, covering model years 2020–2021.
Fuel system2 (6.5%)Official recall records for this system: 9, covering model years 2000–2018.

These are counts of records held by CarFaultIQ, not a failure rate. More records can simply mean more vehicles were sold or more owners reported. No vehicles-in-service figure exists in this data, so no reliability or risk score can be derived from it.

What the records are about, by source

Each source is kept separate: owner complaints, recalls, manufacturer communications and investigations are different kinds of record and are never added together. All model years.

Owner complaints (502 records, model years 1997–2021) are most frequently classified under: engine, electrical system and fuel system.
Safety recalls (109 records, model years 1997–2026) are most frequently classified under: air bags (restraint system), fuel system and driver-assistance systems.
Transport Canada recalls (99 records, model years 1997–2026) are most frequently classified under: visibility (glass, wipers, mirrors), air bags (restraint system) and fuel system.
Manufacturer communications (22,108 records, model years 1997–2026) are most frequently classified under: electrical system, equipment & accessories and engine.

"Most frequently classified under" reports how the records are filed by the source. It is not a finding about causes, and a record can be filed under more than one system. Read the individual records

Evidence by model year

Records held per model year. Select a year to narrow this page to it.

Counts are not adjusted for how many vehicles were sold in each year, so a taller year is not necessarily a worse year.

Reports mentioning outcomes

2mention a fire

These are counts of records whose report mentioned the outcome. They are not a severity rating and not a safety assessment of this vehicle.

Official records held

Safety recalls NHTSA 1
Manufacturer communications NHTSA 209
Transport Canada recalls Transport Canada 2
Owner complaints NHTSA 20

Explore the underlying evidence records

Diagnostic codes found in evidence for this vehicle

These codes appear by explicit identifier in official records matched to this exact model and year.

P0101 in 4 records
P0102 in 4 records
P0113 in 4 records
P0103 in 2 records
P0112 in 2 records

A code appearing in a record means the code was named in that document. It is not a diagnosis of this vehicle, not a fault this vehicle has, and not an indication of urgency. Diagnosis requires reading live data from the vehicle.

Symptoms and warning lights in these systems

Washer fluid light Visibility (glass, wipers, mirrors)
Adaptive cruise control warning: meaning and what to check first Speed control & accelerator
The accelerator pedal stuck Speed control & accelerator
ABS Warning Light Brakes
Car Shaking When Braking Brakes

Where to go next

Audi A8 coverage hub Published problems, year windows and buyer guidance for this model.
Evidence Explorer — the underlying records Read the individual recalls, investigations, manufacturer communications and complaints these counts come from.
All model years of the Audi A8 Compare how much evidence is held for each year before narrowing to one.
Browse all vehicle coverage Every make and model CarFaultIQ has published coverage for.