X Series E83 X3 2.0d (M47T2) OFFRD
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Powertrain CAN
The powertrain CAN (PT-CAN or powertrain controller area network) links the control units for the drive and
running gear control systems.
New features of the PT-CAN are: the control unit for the transfer box (VTG) and the control unit for the
servotronic.
The transfer box control unit controls the distribution of drive forces between the front axle and the rear
axle.
The servotronic control unit controls the speed-dependent power steering.
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LIN bus
The LIN bus (Local Interconnect-Network bus) is serial, single-wire bus, standardised for the automotive
industry. The LIN bus links the components for the electric exterior mirrors: switch block, base module and
exterior mirrors.
The LIN bus also connects the control unit for the adaptive headlights (AHL) with the stepper motor
controllers. (The stepper motor controllers control the stepper motors for the headlight-range adjustment
and for the AHL).
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Diagnosis bus
The diagnosis bus (D-bus) is connected to the entire vehicle electrical system. The individual control units
are either connected directly to the D-bus or via the control unit in the instrument cluster.
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Panorama glass sunroof
The fully automatic Panorama glass sunroof comprises 2 glass sunroofs: The front glass sunroof works like a
sliding/tilt sunroof, the rear glass sunroof is a tilting glass sunroof.
The drive for the Panorama glass sunroof consists of 2 DC motors.
The wind deflector reduces wind noise inside the vehicle interior. The wind deflector is automatically extended,
depending on the road speed.
[more in SI Technical (SBT) 61 12 03 055]
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Adaptive headlights
The adaptive headlights (AHL) directs the beam of the headlights towards the inside of the curve when cornering
- the curve is illuminated better. Visibility is thus improved.
When cornering, the driver is not looking into a "black hole" - instead, the adaptive headlights allow the driver to
see the curve of the road. Adaptive headlights is an item of special equipment.
[more in SI Technical (SBT) 63 03 03 047]
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Multiple restraint system
The new multiple restraint system 4 (MRS) is an advanced development of the current MRS.
MRS consists of a control unit, several external sensors for recording an impact, a seat-occupancy detector and
gas generators for triggering the airbags.
The external sensors are:
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2 airbag front sensors
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Airbag sensor, front left door
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Airbag sensor, front right door
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Airbag sensor, B-pillar left
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Airbag sensor, B-pillar right
SBT Complete vehicle E83
BMW AG - TIS
05.02.2013 11:31
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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