Mercedes-Benz A 220 2019–2021 — technical service bulletin
Bulletin LI35.31-P-072107 · NHTSA communication 10186134 · issued Nov 12, 2020
Technical service bulletin
communication type
Power Train
component
2019–2021
model years
16
vehicle entries
Official summary
Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case)
Vehicles covered
- 2019 Mercedes-Benz A 220
- 2020 Mercedes-Benz AMG A35
- 2021 Mercedes-Benz AMG A35
- 2020 Mercedes-Benz AMG A45
- 2019 Mercedes-Benz AMG C63 S
- 2020 Mercedes-Benz AMG CLA35
- 2021 Mercedes-Benz AMG CLA35
- 2020 Mercedes-Benz AMG CLA45
- 2021 Mercedes-Benz AMG CLA45
- 2020 Mercedes-Benz AMG GLA45
- 2019 Mercedes-Benz CLA 250
- 2020 Mercedes-Benz CLA 250
- 2021 Mercedes-Benz CLA 250
- 2019 Mercedes-Benz GLA 250
- 2020 Mercedes-Benz GLA 250
- 2021 Mercedes-Benz GLA 250
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.