MSA function is deactivated by

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Fig 1: Identifying Automatic Engine Start/Stop Button

Courtesy of BMW OF NORTH AMERICA, INC.

Open engine bonnet/hood and ensure that engine hood/bonnet contact is not in workshop mode

A = 10 mm

Basic setting (engine hood/bonnet open)
B = 7 mm

To make sure that the engine hood/bonnet contact is at the basic setting, if necessary press the hood/bonnet contact up to the limit position before starting work and slowly release.

Fig 2: Identifying Engine Hood/Bonnet Basic Setting And Workshop Mode

Courtesy of BMW OF NORTH AMERICA, INC.