Door Latch Mechanism; Bv.14 - Lotus Evora Service Notes

Lotus Service Notes
BV.12 - DOOR LATCH MECHANISM
The door latch mechanism is fitted inside the rear face of the door, which is reinforced by a steel plate
bonded to the composite door shell, and which is also used to secure the rear end of the door beam. The
latch engages with a striker hoop which is secured to a bracket integral with the seat belt mounting frame. The
external key lock (fitted only on the LH door) is connected to the latch mechanism by control rod, as are the
door sill buttons, and exterior release handles. The interior release handle is connected via a control cable.
The latch contains a microswitch to detect when the door is closed, and which is used to operate the courtesy
lamp, alarm system, door glass drop functions, and others. The electrical locking actuator is mounted on a
bracket integral with the latch mechanism with which it interacts via a rotary link.
A plastic security shield is fitted around the latch mechanism to inhibit illicit interference with the locking
system.
Normal operation of the locking functions is performed electronically via the transmitter fob (see Section
MR), but if necessary, the doors can be locked mechanically. The LH door can be locked by using the key in
the exterior lock barrel. Both doors can also be locked individually by lifting the exterior release handle (with
door open), pressing down the door sill button, and keeping the handle lifted, shutting the door. This action will
also disable the interior release handle. Once locked in this way, the RH door can be unlocked only by using
the transmitter fob or by raising the door sill button after opening the LH door via the mechanical key.
WARNING: The window control mechanism includes an automatic window drop and raise logic to aid
door closing and weathersealing. This function may be triggered, with ignition on or off, by door latch-
ing signals. Whenever working on or near the window mechanism, disconnect the window motor to
prevent injury from unintended operation.
Exterior handle
LH lock barrel
Latch mechanism
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Sill button
CDL motor
Security shield
Interior
release
cable
Section BV
Interior release
handle
Striker
hoop
Tapping plate