Audi Q4 E-Tron 2021–2026 — technical service bulletin
Bulletin SM 05-2025 · NHTSA communication 11025422 · issued Oct 1, 2025
Technical service bulletin
communication type
Electrical System
component
2021–2026
model years
13
vehicle entries
Official summary
This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
Vehicles covered
- 2022 Audi Q4 E-Tron
- 2023 Audi Q4 E-Tron
- 2024 Audi Q4 E-Tron
- 2025 Audi Q4 E-Tron
- 2026 Audi Q4 E-Tron
- 2022 Audi Q4 Sportback 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
- 2021 Volkswagen ID.4
- 2022 Volkswagen ID.4
- 2023 Volkswagen ID.4
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.