System Components
Advanced crash and safety management in the E93 Convertible
essentially comprises the following components:
• Crash safety module ACSM2
• ROC control unit
• Sensors and switches
– Up-front sensors
– Door pressure sensors
– B-pillar satellites
– Seat occupancy mat US (OC3)
– Seat belt buckle switch
– Emergency call button
• Actuators
– Driver's airbag, two-stage
– Passenger's airbag, two-stage
– Knee airbag, driver/passenger (US only)
– Side airbag, driver/passenger
– Seat belt pretensioner, driver/passenger
– Safety battery terminal
– Rollbar, left/right
• Warning lights
– Airbag warning light AWL
– Seat belt mannikin
– Passenger Airbag OFF lamp
Crash Safety Module
The crash safety module is located centrally on the transmission
tunnel in the vehicle. The crash safety module consists of a
diecast housing with integrated plug cover.
The crash safety module contains two acceleration sensors offset
at an angle of 90°. These acceleration sensors measure the
longitudinal acceleration and transverse acceleration of the vehicle.
A rotation rate sensor as well as a Low-g sensor for transverse
acceleration (Y-direction) and a Low-g sensor for Z-direction are
additionally integrated for detecting rollover situations.
E93 Complete Vehicle Workbook
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