What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
10Original wording in English
AUDI
Reported code forms B12251B
Summary of all Vin4Pin topic in May Cylinder head cover bolts leaking Airbaglight on DTC B12251B Steering column switch trim dislodged MIB3 system takes a long time to load at startup Sunroof shade binds
AUDI
Reported code forms B12251B
Summary of all Vin4Pin topic in May Cylinder head cover bolts leaking Airbaglight on DTC B12251B Steering column switch trim dislodged MIB3 system takes a long time to load at startup Quattro ultra binding Front or rear…
AUDI
Reported code forms B12251B
Summary of all Audi Vin4Pin topics in June Q5 ECM DTC P016900 MIB3 - Stuck on loading user information when booting up Roof panel buttons inop Airbag light B12251B front windows is noisy and/or binding Front door wind…
AUDI
Reported code forms B12251B
Summary of all Audi Vin4Pin topics in June Quatro Ultra vibrations MIB3 - Stuck on loading user information when booting up Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light…
AUDI
Reported code forms B12251B
Summary of all Audi Vin4Pin topics in June Corrosion on wheelhouse cover plate MIB3 - Stuck on loading user information when booting up Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop…
AUDI
Reported code forms B12251B
Summary of all Audi Vin4Pin topics in June Corrosion on wheelhouse cover plate Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B Front door(s) hard to close Front door…
Check vehicle applicability
8A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A4 ALLROAD | 2025 |
| Audi | A4 ALLROAD | 2024 |
| Audi | A4 ALLROAD | 2023 |
| Audi | A4 ALLROAD | 2021 |
| Audi | A4 ALLROAD | 2020 |
| Audi | A4 ALLROAD | 2019 |
| Audi | A4 ALLROAD | 2018 |
| Audi | A4 ALLROAD | 2017 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.