2018 Audi A4 - Electric Vehicle Guide
The 2018 Audi A4 belongs to a Audi A4 lineup that Know Your Ride tracks across 19 model years, from 1996 to 2025. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion A4 entirely. It is configured as front-wheel drive with an automatic (am-s7). The 2018 sits mid-run, with both earlier (1996) and later (2025) A4 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 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.
NHTSA complaints for this vehicle cluster around unknown or other (6), air bags (3), power train (2). A representative report reads: "The contact owned a 2018 Audi A4. The contact stated that while driving at an undisclosed speed, there was fluid leaking from the front of the vehicle. No..." There is 1 safety recall on record; one covers: Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5....
Estimated annual charging cost runs near $1,850.
Quick Specs
| Battery warranty | 8 yr / 100,000 mi |
| Est. annual charging | $1,850 |
| Tire size | 225/45R18 |
| Coolant | G13 |
| NHTSA overall | 5 / 5 stars |
| Open recalls on record | 1 |
| Technical service bulletins | 200 |
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
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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.