51 23 131 Adjusting left or right striker on engine compartment lid

Adjusting striker is described in:

ADJUSTING ENGINE COMPARTMENT LID

Undo screws (3) and remove striker (2).

Tightening torque 51 23 1AZ .

Disconnect Bowden cable (1).

Installation note: 

ADJUST ENGINE COMPARTMENT LID

Fig 1: Identifying Door Striker, Bowden Cable And Screws

Courtesy of BMW OF NORTH AMERICA, INC.