Emergency Default Mode, Function - GF27.60-P-3012ANI

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Transmission 725.0 in model 253

Function requirements for limp-home mode, general

Internal combustion engine running

Limp-home mode, general

In order to guarantee a safe driving condition and to avoid damage to the automatic transmission, the fully integrated transmission control unit (Y3/8n4) switches to limp-home mode in the event of critical faults. In the case of solenoid faults, the affected gear is blocked and no longer actuated. As a result the vehicle can be brought to the nearest Mercedes-Benz service operation.

Overview of system components for automatic transmission (AT)

GF27.10-P-9992ANI