2004 Audi A6 - Electric Vehicle Guide

The 2004 Audi A6 belongs to a Audi A6 lineup that Know Your Ride tracks across 14 model years, from 1995 to 2026. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion A6 entirely. It is configured as front-wheel drive with an automatic (variable gear ratios). The 2004 sits mid-run, with both earlier (1995) and later (2026) A6 model years also documented.

The high-voltage battery is covered for 8 years or 100,000 miles, separate from the bumper-to-bumper warranty. Routine upkeep centers on tire rotation, DOT 4 brake fluid, G13/G12++ battery/cabin coolant, cabin air filters and brake service rather than engine oil. Know Your Ride lists 13 scheduled maintenance items for this vehicle, the earliest interval falling at 10,000 miles. Documented torque values include lug nut 89 ft-lb.

There are 4 safety recalls on record; one covers: ...SIVE 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.... Its overall reliability signal is rated "Excellent" based on aggregated complaint and crash data.

Estimated annual charging cost runs near $2,750.

Quick Specs

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

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.