BMW 5 Series: Main bus systems
K-CAN
In the G30 the following K-CAN's are used:
- K-CAN2
- K-CAN3
- K-CAN4
- K-CAN5
The control units on the K-CAN5 are not displayed in the bus overview by the BMW diagnosis system ISTA. Diagnosis is performed via the Body Domain Controller.
All K-CAN data buses have a data transfer rate of 500 kBit/s.
PT-CAN
In the G30 the following PT-CAN are used:
- PT-CAN
- PT-CAN2
The gateway for the PT-CAN2 is located in the DME.
Both PT-CAN data buses have a data transfer rate of 500 kBit/s.
MOST
On the G30 the MOST system known from other BMW models with a data transfer rate of 22.5 MBit/s is used. The gateway for the MOST system is located in the HEADUNIT.
FlexRay
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FlexRay
- Dynamic Stability Control (DSC)
- Digital Motor Electronics (DME2) (8-cylinder engine)
- Transfer case
- Electronic Power Steering (EPS)
- Electric active roll stabilization front (EARSV)
- Digital Motor Electronics (DME) (4 & 6-cylinder engine)
- Body Domain Controller (BDC)
- Vertical Dynamics Platform (VDP)
- Electric active roll stabilization rear (EARSH)
- Rear axle slip angle control (HSR)
- Advanced Crash Safety Module (ACSM)
- Optional equipment system (SAS)
The FlexRay overview includes all engine versions and optional equipment. The DME (item 6) is used for 4 & 6-cylinder engines. On 8-cylinder engines the DME2 (item 2) is used. The terminating resistors for line termination are located in the DME control units and in the Body Domain Controller.
The FlexRay has a data transfer rate of 10 MBit/s.
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Ethernet
On the G30 the 2-wire OABR Ethernet (OPEN Alliance BroadR-Reach) from the G12
is used.
The Ethernet variant with 5 lines (4 data lines and 1 activation line) is still
used on the G30 by the
OBD2 in
Sub-bus systems
LIN-Bus
For a better overview, the LIN buses are divided up between several wiring
diagrams for the G30.
LIN bus overview in the door area
LIN-Bus
Body Domain Controller (BDC)
Exterior mirror, fr
Local CAN
In the G30 the following Local Controller Area Networks are available with
the corresponding
equipment:
Local CAN from electronic transmission control (EGS) to the gear
selector switch (GWS).
Lo
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SYNC program
Concept
Depending on the equipment, the following settings
of the driver's side can be transferred to the
front-passenger side and the rear:
Temperature.
Air flow.
Air distribution.
AUTO program.
Switching on/off
Press the button.
The LED is illuminated with the SYNC
program switched on.
The
Changing wheels/tires
General information
When using run-flat tires or a flat tire kit, a wheel
does not always need to be changed immediately
when there is a loss of tire inflation pressure
due to a flat tire.
If needed, the tools for changing wheels are
available as accessories from a dealer's service
center or anothe
