1999 Audi A6 - Maintenance & Specs
The 1999 Audi A6 belongs to a Audi A6 lineup that Know Your Ride tracks across 14 model years, from 1995 to 2026. The 1999 sits mid-run, with both earlier (1995) and later (2026) A6 model years also documented. Detailed oil, fluid and parts specifications for this generation are still being expanded - the related A6 model years listed below may carry more complete records.
Oil specifications for this vehicle should be verified with your owner's manual or authorized dealer.
No NHTSA safety complaints or open recalls are currently on record for this vehicle, which for an older or low-volume model often reflects limited reporting.
Quick Specs
| Engine oil | See owner's manual |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
Related Vehicles
See full specs, parts & repair guides →Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.