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Home >> BMW >> 2013 >> M3 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> General Information >> OEM General Information >> Functional Description -- M3 Convertible >> Transmission & Driveline - Functional Description >> Twin-Clutch Gearbox >> Emergency program

Emergency program

In the emergency program, the vehicle can still be driven with certain restrictions. If the voltage supply fails, the currently engaged gear remains active and the corresponding clutch is closed. The clutch only opens when a certain minimum speed of the transmission input shaft is not reached.

Depending on the type of transmission fault, the vehicle can no longer be driven after coming to a standstill.

Notes for Service department 

General notes 

Emergency release of the automatic parking lock 

If the parking lock can no longer be released, mechanical emergency release is possible. This allows the vehicle to be pushed or pulled in case of emergency. The procedure for towing is described in the Owner's Handbook. Releasing the automatic parking lock using the emergency release process can lead to a fault entry in the DKG control unit. The procedure for releasing the automatic parking lock is described in the Owner's Handbook.

NOTE: Engine start by tow-starting is not possible.

Tow-starting the vehicle is not possible. With the engine off, no hydraulic pressure is built up in the transmission (clutches not adherent).

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