Locking Sequence; Locking Of The Roof Shells In The Luggage Compartment - BMW 3-series convertible Complete Vehicle Workbook

Locking Sequence

When the front roof shell has reached the cowl panel, the electric
motor is activated.
The left and right drive cables are driven via the gear wheel on the
electric motor (in a manner similar to the sliding/tilt sunroof).
Index Explanation
1
Left catch hook
2
Right catch hook
3
Electric motor
The ends of the drive cables have locking bolts that are pushed
from the front roof panel into the center roof panel and thus lock
these roof panels. The locking bolts press against spring loaded
elements in the center roof panel.
Index Explanation
4
Right locking bolt
5
Left locking bolt
E93 Complete Vehicle Workbook
By means of these elements and flexible rods, the force is transmit-
ted to the locking bolts of roof panels 2 and 3.
While the drive cables are being driven, the connecting rods are
simultaneously activated via the control disk. The force is transmit-
ted from the gear wheel of the electric motor to the connecting
rods via the splines on the control disk.
The left and right connecting rods separate, and the front roof
panel is locked to the cowl panel via the catch hooks. The locking
hook, which locks the front roof panel to the center roof panel, is
also driven via the center connecting rod.
The roof shells are unlocked in the opposite direction.
The end positions of the electric motor are detected by two micro-
switches and forwarded to the CTM.

Locking of the roof shells in the luggage compartment

To prevent damage to the roof shells when stowed, such as when
driving over ground contours, potholes, etc., the front roof shell is
locked in the luggage compartment. Locking the front roof shell
also prevents noises (such as groaning noise or clatter).
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