Audi A3 2023–2026 — technical service bulletin
Bulletin TSB_2078916_2 · NHTSA communication 11025354 · issued Oct 29, 2025
Technical service bulletin
communication type
Fuel/propulsion System
component
2023–2026
model years
60
vehicle entries
Official summary
This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM.
Vehicles covered
- 2023 Audi A3
- 2024 Audi A3
- 2025 Audi A3
- 2026 Audi A3
- 2023 Audi A4
- 2024 Audi A4
- 2025 Audi A4
- 2023 Audi A4 Allroad
- 2024 Audi A4 Allroad
- 2025 Audi A4 Allroad
- 2023 Audi A5
- 2024 Audi A5
- 2023 Audi A5 Sportback
- 2024 Audi A5 Sportback
- 2025 Audi A5 Sportback
- 2023 Audi A6
- 2024 Audi A6
- 2025 Audi A6
- 2023 Audi A6 Allroad
- 2024 Audi A6 Allroad
- 2025 Audi A6 Allroad
- 2026 Audi A6 Allroad
- 2025 Audi A6 Sportback E-Tron
- 2023 Audi A7
- 2024 Audi A7
- 2025 Audi A7
- 2023 Audi A8
- 2024 Audi A8
- 2025 Audi A8
- 2026 Audi A8
- 2023 Audi E-Tron
- 2023 Audi E-Tron GT
- 2024 Audi E-Tron GT
- 2025 Audi E-Tron GT
- 2026 Audi E-Tron GT
- 2023 Audi E-Tron Sportback
- 2023 Audi Q3
- 2024 Audi Q3
- 2025 Audi Q3
- 2023 Audi Q4 E-Tron
- 2024 Audi Q4 E-Tron
- 2025 Audi Q4 E-Tron
- 2026 Audi Q4 E-Tron
- 2023 Audi Q4 Sportback E-Tron
- 2024 Audi Q4 Sportback E-Tron
- 2025 Audi Q4 Sportback E-Tron
- 2026 Audi Q4 Sportback E-Tron
- 2023 Audi Q5
- 2024 Audi Q5
- 2025 Audi Q5
- 2023 Audi Q5 E
- 2024 Audi Q5 E
- 2025 Audi Q5 E
- 2023 Audi Q5 Sportback
- 2024 Audi Q5 Sportback
- 2025 Audi Q5 Sportback
- 2025 Audi Q6 E-Tron
- 2023 Audi Q7
- 2024 Audi Q7
- 2025 Audi Q7
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.