2014 BMW I8 four wheel drive

BMW eDRIVEVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems.
BMW eDRIVEAt a glance1Vehicle battery2Electrical drive unit3High-voltage battery4Fuel filler flap5Combustion engine6Charging port
The concept The hybrid system makes it possible to opti‐
mize fuel consumption and driving characteris‐
tics.
An electric motor assists the combustion en‐
gine. In certain driving situations, the vehicle
can also be driven using only electric power,
thereby reducing fuel consumption.
In addition to this, the electric motor acts like
an alternator: during braking and coasting, it
converts the vehicle's kinetic energy into elec‐ tricity. The current is stored in the high-voltage
battery and is used to drive the electric motor.
Functions
Acceleration boost: ASSIST and eBOOST
Driving off and accelerating require a lot of en‐
ergy. To reduce fuel consumption during high
acceleration and to optimize acceleration, the
electric motor supports the combustion en‐
gine. For this purpose, the electric motor is
supplied by the high-voltage battery.
Electric driving: ePOWER
Under certain conditions, refer to page 61,
the vehicle is powered only by the electric mo‐
tor.
Variable drive configuration
The electric motor drives the front axle and the
combustion engine the rear axle. Depending
on the operating condition, the vehicle has the
options of front-wheel drive, rear-wheel drive
or bundled for four-wheel drive.
Follow instructions for electric driving eDRIVE,
refer to page 61, driving with the combustion
engine DRIVE, refer to page 62, and driving
stability, refer to page 105.
Acoustic pedestrian protection Depending on the country variant, the system
generates an artificial engine sound during
electric driving up to approx. 20 mph/30 km/h.
Driving with the combustion engine:
POWER
The combustion engine provides the perform‐
ance to move the vehicle. If necessary, theSeite 31BMW eDRIVEAt a glance31
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that the child seat has been detected and the
front-seat passenger airbags are not activated.
Strength of the driver's and front-seat
passenger airbag
The explosive power that activates driver's/
front passenger's airbags very much depends
on the positions of the driver's/front passeng‐
er's seat.
With a respective message appearing on Con‐
trol Display calibrate the front seats to keep
the accuracy of this function over the long-
term.
Calibrating the front seats A corresponding message appears on the
Control Display.1.Press the reel and move the respective
seat all the way forward.2.Press the reel forward again. The seat still
moves forward slightly.3.Readjust the seat to the desired position.
The calibration procedure is completed when
the message on the Control Display disap‐
pears.
If the message continues to be displayed, re‐
peat the calibration.
If the message does not disappear after a re‐
peat calibration, have the system checked as
soon as possible.
Unobstructed area of movement
Ensure that the area of movement of the
seats is unobstructed to avoid personal injury
or damage to objects.◀
Tire Pressure Monitor TPM The concept
The system monitors tire inflation pressure in
the four mounted tires. The system warns you
if there is a significant loss of pressure in one
or more tires. For this purpose, sensors in the
tire valves measure the tire inflation pressure
and tire temperature.
Hints Tire damage due to external factors
Sudden tire damage caused by external
circumstances cannot be recognized in ad‐
vance.◀
With use of the system observe further infor‐
mation found under Tire inflation pressure, re‐
fer to page 159.
Functional requirements The system must have been reset with the
correct tire inflation pressure; otherwise, relia‐
ble signaling of tire inflation pressure loss is
not assured.
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
Always use wheels with TPM electronics to
ensure that the system will operate properly.
Status display The current status of the Tire Pressure Moni‐
tor TPM can be displayed on the Control Dis‐
play, e.g., whether or not the TPM is active.1."Vehicle info"2."Vehicle status"3. "Tire Pressure Monitor (TPM)"
The status is displayed.
Status control display Tire and system status are indicated by the
color of the wheels and a text message on the
Control Display.
All wheels green System is active and will issue a warning rela‐
tive to the tire inflation pressures stored during
the last reset.
Seite 96ControlsSafety96
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Indicator/warning lightsThe indicator lamp flashes: DSC con‐
trols the drive and braking forces.
The indicator lamp lights up: DSC has
failed.
Deactivating DSC: DSC OFF Automatic switching of the drive type
Depending on the operating state of the
high-voltage system, the drive of the vehicle
automatically switches between front-wheel,
rear-wheel and four-wheel drive.
If DSC is deactivated, this may result in auto‐
matic change of the drive type for unstable
driving situations.
To increase vehicle stability, activate DSC again as soon as possible.◀
When DSC is deactivated, driving stability is
reduced during acceleration and when driving
in curves.
To increase vehicle stability, activate DSC
again as soon as possible.
Deactivating DSC Press and hold this button but not lon‐
ger than approx. 10 seconds, until the
indicator lamp for DSC OFF lights up in the in‐
strument cluster and displays DSC OFF.
The DSC system is switched off.
The steering and, depending on the equip‐
ment, suspension are tuned for sporty driving.
Activating DSC Press button.
DSC OFF and the DSC OFF indicator
lamp go out.
Indicator/warning lights
When DSC is deactivated, DSC OFF is dis‐
played in the instrument cluster.The indicator lamp lights up: DSC is
deactivated.
Automatic activation When DSC is deactivated, automatic activation
occurs in the following situations:▷The high-voltage battery has an insuffi‐
cient charge.▷The vehicle has a flat tire.▷When activating cruise control in TRAC‐
TION or DSC OFF mode.
DTC Dynamic Traction
Control
The concept The DTC system is a version of the DSC where
forward momentum is optimized.
The system ensures maximum headway on
special road conditions or loose road surfaces,
e.g., unplowed snowy roads, but with some‐
what limited driving stability.
Activating the Dynamic Traction Control DTC
provides maximum traction. Driving stability is
limited during acceleration and when driving in
curves.
Therefore drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
▷When driving in slush or on uncleared,
snow-covered roads.▷When freeing vehicle from deep snow or
driving off from loose grounds.▷When driving with snow chains.
Deactivating/activating DTC Dynamic
Traction Control
Activating DTC Press button.
Seite 106ControlsDriving stability control systems106
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