2010 BMW ACTIVEHYBRID X6 fuel pressure

Things to remember when driving
26
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. To ensure that your vehicle contin-
ues to provide optimized economy of operation
throughout an extended service life, we request
that you devote careful attention to the follow-
ing section.
Engine and rear axle differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at various engine and vehicle speeds, but
do not exceed:
>4,500 rpm or 100 mph/160 km/h
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
From 1,200 miles/2,000 km
The engine and vehicle speed can gradually be
increased.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive in a reserved manner during
this break-in period.
Following part replacement
Observe the break-in instructions again if com-
ponents mentioned above must be replaced
after subsequent driving operation.
Saving fuel
The fuel consumption of your vehicle depends
on various factors. Through a few simple steps,
your driving style, and regular maintenance, you
can have a positive influence on your fuel con-
sumption and environmental impact.
Removing unnecessary cargo
Additional weight increases fuel consumption.
Removing add-on parts after use
Remove unneeded auxiliary mirrors, roof or rear
luggage racks after use. Add-on parts attached
to the vehicle impede the aerodynamics and
increase the fuel consumption.
Closing windows and glass sunroof*
An open glass sunroof or window likewise
increases air resistance and thus fuel consump-
tion.
Checking tire inflation pressures
regularly
Check and correct the tire inflation pressure as
needed at least twice a month and before long
trips.
An insufficient tire inflation pressure increases
the rolling resistance and thus increases the
fuel consumption and tire wear.
Driving off immediately
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive at a moderate engine
speed. This is the fastest way for the cold
engine to reach its operating temperature.
Thinking ahead when driving
Avoid unnecessary acceleration and braking.
To do so, maintain the appropriate distance
from the vehicle in front of you. An anticipatory
and smooth driving style reduces fuel con-
sumption.
Avoiding high engine speeds
Driving at a low engine speed reduces fuel con-
sumption and minimizes wear.

Reference
At a glance
Controls
Driving tips
Mobility
27
Using energy recovery
Energy recovery is displayed in the instrument
panel.
Coasting mode
In coasting mode, e.g. when rolling toward a
traffic signal, the high-voltage battery is
charged by energy recovery.
Braking
The most efficient energy recovery and charg-
ing of the high-voltage battery are achieved
with moderate braking.
Switching off functions currently not
required
Functions such as air conditioning, seat heat-
ing, or rear window defrosting consume a lot of
energy and require additional fuel. Their influ-
ence is particularly pronounced in city traffic
and stop & go operation. For this reason, it is a
good idea to switch these functions off when
they are not really needed.
Having maintenance carried out
Have the vehicle serviced regularly in order to
achieve the optimum economy and service life
of your vehicle. BMW recommends having the
maintenance performed by a BMW Sports
Activity Vehicle Center. Also pay attention to
the BMW maintenance system, refer to the
BMW X6 Owner's Manual.
General driving notes
Driving through water
Maximum water depth: 17 in/45 cm
Only drive through water up to the above-
mentioned depth at no greater than walk-
ing speed; otherwise, the engine, electrical sys-
tem, and transmission can be damaged.<
Braking safely
Your BMW is equipped with ABS as a standard
feature. In situations that require it, it is best to
brake with full force. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least braking is required. Even
light but consistent pressure on the brake pedal
can lead to high temperatures, brake wear and
possibly even brake failure.<
With a fully charged high-voltage battery,
the combustion engine is switched on
when driving downhill in order to avoid over-
loading the high-voltage battery.<
The braking effect of the engine can be further
increased by downshifting in the manual mode
of the automatic transmission, if necessary into
first gear, refer to page18. This prevents an
excessive strain on the brakes.
Do not drive in idle or with drive readiness
mode deactivated; otherwise, there is no
braking action from the energy recovery or from
the engine and no power-assistance for braking
and steering.
Never allow floor mats, carpets or any other
objects to protrude into the area of movement
of the pedals and impair their operation.<

Refueling
32
Refueling
Before refueling, deactivate drive readi-
ness. When handling fuel, always observe
all applicable precautionary measures and reg-
ulations. Never transport reserve fuel contain-
ers in the vehicle. These could become leaky
and cause an explosion or a fire in an accident.<
Refueling
The BMW ActiveHybrid X6 is equipped with a
special fuel tank. It is designed for special
requirements that arise in the hybrid operation
of the vehicle, e.g. alternating driving with the
combustion engine or electric motors. Fuel
vapors can cause pressure to build up in the fuel
tank, which is reduced before the fuel tank
catch is opened.
Preparation
Unlocking fuel filler door
1.Deactivate drive readiness, refer to
page15.
2.Push the button to start pressure compen-
sation.
3.Messages indicate that the fuel filler door
has been released and refueling is possible.
In rare cases, the pressure decrease can
take several seconds. A message on the
Control Display indicates when the fuel filler
door has been released.
4.Open the fuel filler door.
If the fuel filler door is not opened within
10 minutes after the fuel tank catch is released, the fuel filler door locks again.
Press the button again.
Opening fuel filler door
1.Open the fuel filler door. To do this, briefly
press the lower edge.
The fuel filler door can only be opened if the
fuel tank catch has been released.
2.Turn the fuel filler cap counterclockwise.
3.Place the fuel filler cap in the bracket
attached to the fuel filler door.
Closing
Fit the cap and turn it clockwise until you clearly
hear a click.
Do not crush the band attached to the
cap; otherwise, the cap may not properly
seal and fuel vapors can escape.<
Manually releasing fuel filler door
If an electrical malfunction should occur and the
system does not release the fuel filler door, you
can unlock the fuel filler door manually.

Everything from A to Z
48
Everything from A to Z
Index
A
Accident, what to do after40
After an accident40
AKI, refer to Fuel
specifications33
Alterations, technical, refer to
For your own safety5
Approved axle weights, refer
to Weights46
Approved gross vehicle
weight, refer to Weights46
Axle weights, refer to
Weights46
B
Battery
– 12 V battery36
– charging36
– high-voltage battery36
Battery disposal
– vehicle battery36
BMW homepage4
BMW website4
Brake rotors28
Brakes
– breaking-in26
– refer to Braking safely27
Brake system
– breaking-in26
– disk brakes28
Braking safely27
Breaking-in rear axle
differential26
Break-in period26
Button for starting engine13
C
Capacities46
Capacity of cargo bay46Cargo bay
– capacity46
Car wash
– before driving in15
Changes, technical, refer to
For your own safety5
CHARGE, Energy recovery16
Charge state display21
Charging high-voltage
battery37
Checking the air pressure,
refer to Tire inflation
pressure34
Climate23
Closing fuel filler cap32
Cockpit8
Components, high-voltage
system12
Consumption display
– charge state display21
Copyright2
Cruise control19
Cylinders, refer to Drive
system44
D
Data
– capacities46
– dimensions45
– engine44
– high-voltage system44
– hybrid system44
– technical data44
– weights46
Dimensions45
Displacement, refer to Drive
system44
Displays, refer to Instrument
panel8
Disposal
– vehicle battery36DRIVE, Driving with
combustion engine16
Drive readiness14
Driving through water27
Driving tips, refer to General
driving notes26
E
eBOOST16
eDRIVE, Electric driving15
Electrical malfunction
– fuel filler door32
Electric drive readiness14
Electric driving, eDRIVE15
Emergency operation, refer to
Manually operating fuel filler
door32
Energy recovery, CHARGE16
Engine
– breaking-in26
– data44
– speed44
– starting14
Engine compartment35
Engine output, refer to Drive
system44
Engine speed44
Eye for tow-starting and
towing, refer to Tow
fitting39
F
Footbrake, refer to Braking
safely27
For your own safety5

Reference
At a glance
Controls
Driving tips
Mobility
49
Fuel33
– capacity46
– display22
– high-quality brands33
– quality33
– saving26
– specifications33
Fuel clock, refer to Fuel
gauge22
Fuel display, refer to Fuel
gauge22
Fuel filler door32
– closing32
– releasing manually32
G
Gasoline, refer to Required
fuel33
Gasoline display, refer to Fuel
gauge22
General driving notes26,27
Getting towed38
Gross vehicle weight, refer to
Weights46
H
Height, refer to
Dimensions45
High-voltage battery36
High-voltage system
– components12
High water, refer to Driving
through water27
Hills27
Homepage4
Hybrid system
– air-conditioning
functions23
– components12
– contact with water40
– deactivation40
– display21
– functions13
– safety39
Hybrid system safety39
I
Ignition13
– switched on13
Ignition key position 1, refer to
Radio readiness13
Ignition key position 2, refer to
Ignition on13
Imprint2
Inflation pressure, refer to Tire
inflation pressure34
Instrument cluster, refer to
Instrument panel8
Instrument panel8
J
Jumpering, refer to Jump
starting37
Jump starting37
K
Knock control33
L
Length, refer to
Dimensions45
Luggage compartment
capacity, refer to Cargo bay
capacity46
M
Malfunction
– fuel filler door32
Manual operation
– fuel filler door32
N
Noises, refer to Cooling of the
high-voltage system23
Nylon rope, refer to Tow-
starting and towing38
O
Octane ratings, refer to Fuel
specifications33
P
Power, refer to Drive
system44
Pressure, tires34
Pressure compensation,
refueling32
R
Radio position, refer to Radio
readiness13
Radio readiness13
– switched on13
Refueling32
– preparation32
– pressure compensation32
Regeneration, refer to Energy
recovery16
Reserve warning, refer to Fuel
gauge22
Roof load capacity46
Rope, refer to Tow-starting
and towing38
S
Safety5
Screw thread for tow fitting39
Silent start14
Speedometer8
Sport program, manual mode
M/S18
Start/Stop button13
Starting, refer to Starting
engine14
Starting assistance, refer to
Jump starting37
Starting difficulties, jump
starting37
Status of this Owner's Manual
at time of printing5
Summer tires, refer to Wheels
and tires34