BMW 3: Designation and identification
Designation of electrical machines
The electrical machine designation is used in the technical documentation for
clear identification of
the electrical machine. However, the identification of the electrical machine is
relevant for Service.
Identification of the electrical machine
The electrical machines have an identification to ensure clear identification
and classification. This
identification is also necessary for approval by government authorities. The
identification of the
electrical machines is equivalent to the identification of the combustion
engines. The serial number
of the electrical machine can be found under the electrical machine
identification on the electrical
machine. This consecutive number, in conjunction with the identification,
permits clear identification of
each individual electrical machine.


The identification of the electrical machine in a G20 PHEV is as follows:
GC1P25A.
Technical data

Installation location

G20 PHEV electrical machine installation location
- Electric Motor Electronics (EME)
- Circlip
- Lid at electrical machine
- Additional torsional vibration damper
- Separation clutch
- Electric motor
- Hollow shaft
- High-voltage battery unit
The hybrid components are integrated as individual components in the
transmission bell housing and
assume the installation space of the hydraulic torque converter in the
transmission housing.
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The main components of the electrical machine are:
Rotor and stator
Connections
Rotor position sensor
Cooling
The hybrid system in the G20 PHEV is a so-called parallel hybrid system. Both
Rotor and stator, electrical machine
Stator
Permanent magnets
Rotor
Hollow shaft with outer basket of separation clutch
The electrical machine in the G20 PHEV is structured as an inner rot
Connections, electrical machine
Transmission bell housing
Temperature sensor
Coolant ducts
Connection for coolant (transmission oil)
Electrical connection, rotor position sensor
High-voltage c
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Button in the vehicle
Park assistance button
Ultrasound sensors
With the four side ultrasound sensors, arrows,
and the ultrasound sensors in the bumpers, the
parking spaces are measured and the distances
to obstacles determined.
Functional requirements
Ultrasound sensors
Ensure full functionality
General information
The battery is maintenance-free.
More information about the battery can be requested
from a dealer's service center or another
qualified service center or repair shop.
Safety information
Warning
Vehicle batteries that are not compatible can
damage vehicle systems and impair veh