2011 BMW X3 pressure

Display on the Control Display
Switching on the backup camera via
iDrive
With PDC activated:
"Rear view camera"
The backup camera image is displayed. The set‐
ting is stored for the remote control currently in
use.
Malfunction
A Check Control message, refer to page 74, is
displayed in the instrument cluster.
On the Control Display, the areas in front of and
behind the vehicle are shaded. PDC has failed.
Have the system checked.
To ensure full operability:
▷Keep the sensors clean and free of ice.▷When using high-pressure washers, do not
spray the sensors for long periods and main‐
tain a distance of at least 12 in/30 cm.
Backup camera*
The concept
The backup camera provides assistance in park‐
ing and maneuvering backwards. The area be‐
hind the vehicle is shown on the Control Display.
System limits
Check the traffic situation as well
Check the traffic situation around the ve‐
hicle with your own eyes. Otherwise, an accident
could result from road users or objects located
outside the picture area of the backup camera. ◀
Detection of objects
High, protruding objects such as ledges
may not be detected by the backup camera.◀
Switching on automatically
Select transmission position R with the engine
running.
The backup camera image is displayed if the
system was switched on via the iDrive.
Switching off automatically
The system switches off and the LED goes out:▷After approx. 33 ft/10 m when driving for‐
ward.▷Above approx. 9 mph/15 km/h when driving
forward.
Switch on the system again if necessary.
Switching on/off manually
Press the button.
▷On: the LED lights up.▷Off: the LED goes out.
The PDC is shown on the Control Display.
Switch on the backup camera via the iDrive, refer
to page 97.
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Mobile communication devices in the
vehicle
Mobile communication devices in the ve‐
hicle
It is advised that you do not use mobile commu‐
nication devices, e.g., mobile phones, inside the
vehicle without connecting them directly to the
external antenna. Otherwise, the vehicle elec‐
tronics and mobile communication devices can
interfere with each other. In addition, there is no
assurance that the radiation generated during
transmission will be discharged from the vehicle
interior.◀
Hydroplaning
On wet or slushy roads, a wedge of water can
form between the tires and road surface.
This phenomenon is referred to as hydroplan‐
ing. It is characterized by a partial or complete
loss of contact between the tires and the road
surface, ultimately undermining your ability to
steer and brake the vehicle.
Hydroplaning
When driving on wet or slushy roads, re‐
duce your speed to prevent hydroplaning.◀
Driving through water
Drive though calm water only if it is not deeper
than 11.8 inches/30 cm and at this height, no
faster than walking speed, up to 6 mph/10 km/h.
Adhere to water depth and speed limita‐
tions
Do not exceed this water depth and walking
speed; otherwise, the vehicle's engine, the elec‐
trical systems and the transmission may be
damaged.◀
Braking safely
Your vehicle is equipped with ABS as a standard
feature.
Applying the brakes fully is the most effective
way of braking in situations when this is neces‐
sary.The vehicle maintains steering responsiveness.
You can still avoid any obstacles with a minimum
of steering effort.
Pulsation of the brake pedal and sounds from
the hydraulic circuits indicate that ABS is in its
active mode.
Objects in the area around the pedals No objects in the area around the pedals
Keep floor mats, carpets, and any other
objects out of the area of motion of the pedals;
otherwise, the function of the pedals could be
impeded while driving
Do not place additional floor mats over existing
mats or other objects.
Only use floor mats that have been approved for
the vehicle and can be properly fixed in place.
Ensure that the floor mats are securely fastened
again after they were removed for cleaning, for
example.◀
Driving in wet conditions
When roads are wet or there is heavy rain, briefly
exert gentle pressure on the brake pedal every
few miles.
Ensure that this action does not endanger other
road users.
The heat generated in this process helps dry the
brake discs and pads.
In this way braking efficiency will be available
when you need it.
Hills
Drive long or steep downhill gradients in the gear
in which the least braking is required. Otherwise,
the brake system may overheat, resulting in a
reduction in the brake system efficiency.
Manual transmission:
Automatic transmission/Sport automatic trans‐
mission*:
You can increase the engine's braking effect by
shifting down in the manual mode of the auto‐
matic transmission.Seite 121121
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Avoid load on the brakes
Avoid placing excessive load on the brake
system. Light but consistent brake pressure can
lead to high temperatures, brake wear and pos‐
sibly even brake failure.◀
Do not drive in neutral
Do not drive in neutral or with the engine
stopped, as doing so disables engine braking. In
addition, steering and brake assist is unavailable
with the engine stopped.◀
Brake disc corrosion
Corrosion on the brake discs and contamination
on the brake pads are furthered by:▷Low mileage.▷Extended periods when the vehicle is not
used at all.▷Infrequent use of the brakes.
Corrosion occurs when the minimum pressure
that must be exerted by the pads during brake
applications to clean the discs is not reached.
Should corrosion form on the brake discs, the
brakes will tend to respond with a pulsating ef‐
fect that generally cannot be corrected.
Condensation under the parked vehicle
When using the automatic climate control, con‐
densation water develops that exits underneath
the vehicle.
Therefore, traces of condensed water under the
vehicle are normal.
Loading Overloading the vehicle
To avoid exceeding the approved carrying
capacity of the tires, never overload the vehicle.
Overloading can lead to overheating and in‐
creases the rate at which damage develops in‐
side the tires. This could result in a sudden loss
of tire inflation pressure.◀
No fluids in the trunk
Make sure that fluids do not leak into the
trunk; otherwise, the vehicle may be damaged. ◀
Determining the load limit1.Locate the following statement on your ve‐
hicle’s placard*:▷The combined weight of occupants and
cargo should never exceed XXX kg or
YYY lbs. Otherwise, damage to the ve‐
hicle and unstable driving situations may
result.2.Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.3.Subtract the combined weight of the driver
and passengers from XXX kilograms or YYY
pounds.4.The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the YYY amount equals
1,400 lbs and there will be five 150 lbs pas‐
sengers in your vehicle, the amount of avail‐
able cargo and luggage load capacity is
650 lbs: 1,400 lbs minus 750 lbs = 650 lbs.5.Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available
cargo and luggage load capacity calculated
in Step 4.Seite 122122
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Roof-mounted luggage rack
Note
Roof-mounted luggage racks are only available
for vehicles with roof rails*.
Special rack system as optional
accessory
A special rack system is available as an optional
accessory.
Follow the directions given in the installation in‐
structions.
Anchorage points
The roof rails* provide mounting points for the
roof-mounted luggage rack.
Follow the directions given in the installation in‐
structions.
Mounting
Be sure that adequate clearance is maintained
for raising and opening the glass sunroof*.
Loading
Because roof racks raise the vehicle's center of
gravity when loaded, they have a major effect on
vehicle handling and steering response.
Therefore, note the following when loading and
driving:▷Do not exceed the approved roof/axle loads
and the approved gross vehicle weight.▷Distribute the roof load uniformly.▷The roof load should not be too large in area.▷Always load the heaviest pieces on the bot‐
tom.▷Secure the roof luggage firmly, e. g., tie with
ratchet straps.▷Do not let objects project into the opening
path of the tailgate.▷Drive smoothly. Avoid sudden acceleration
and braking maneuvers. Take corners gen‐
tly.Saving fuel
General information
Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
The implementation of certain measures, driv‐
ing style and regular maintenance, refer to
page 219, can have an influence on fuel con‐
sumption and on the environmental impact.
Remove unnecessary cargo
Additional weight increases fuel consumption.
Remove attached parts following use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Close the windows and glass sunroof*
Driving with the glass sunroof and windows
open results in increased air resistance and
raises fuel consumption.
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire inflation
pressure, refer to page 207, at least twice a
month and before starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.Seite 124124
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Wheels and tiresTire inflation pressure
Safety information
The tire characteristics and tire inflation pres‐
sure influence the following:▷The service life of the tires.▷Road safety.▷Driving comfort.
Checking the pressure
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been parked for at least 2 hours. When the tires
are warm, the tire inflation pressure is higher.
Check the tire inflation pressure regularly
Regularly check the tire inflation pressure
and correct it as needed: at least twice a month
and before a long trip. If you fail to observe this
precaution, you may be driving on tires with in‐
correct tire pressures, a condition that may not
only compromise your vehicle's driving stability,
but also lead to tire damage and the risk of an
accident.◀
After correcting the tire inflation pressure, rein‐
itialize the Tire Pressure Monitor.
Pressure specifications
The tire inflation pressure table, refer to
page 207, contains all pressure specifications
for the specified tire sizes at the ambient tem‐
perature. Pressure specifications apply to ap‐
proved tire sizes and recommended tire brands.
This information can be obtained from your
service center.
To identify the correct tire inflation pressure,
please note the following:
▷Tire sizes of your vehicle.▷Vehicle load.▷Maximum allowable driving speed.Tire inflation pressures up to 100 mph/
160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure val‐
ues in the tire inflation pressure table, refer to
page 207, and adjust as necessary.
These pressure values can also be found on the
tire inflation pressure label on the driver's door
pillar.
Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.◀
Tire inflation pressure values up to
100 mph/160 km/h
X3 28iA
Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires225/55 R 17 102
H M+S2.2 / 322.2 / 32225/60 R 17 99 H M
+S
245/50 R 18 100 V
M+S2.2 / 322.4 / 35Seite 207207
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Tire sizePressure specifications
in psi/kPa245/45 R 19 102 V
M+S2.2 / 322.6 / 38F: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.2 / 32
--
2.4 / 35F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.2 / 32
--
2.4 / 35F: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL2.2 / 32
--
2.6 / 38T 135/80 R 18 104
M4.2 / 604.2 / 60
X3 35iA
Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires245/50 R 18 100 V
M+S2.2 / 322.4 / 35245/45 R 19 102 V
M+S2.2 / 322.6 / 38F: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.2 / 32
--
2.4 / 35F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.2 / 32
--
2.4 / 35Tire sizePressure specifications
in psi/kPaF: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL2.2 / 32
--
2.6 / 38T 135/80 R 18 104
M4.2 / 604.2 / 60
Tire inflation pressures at max. speeds
above 100 mph/160 km/h
Speeds above 100 mph/160 km/h
In order to drive at maximum speeds in ex‐
cess of 100 mph/160 km/h, please observe, and,
if necessary, adjust tire pressures for speeds
exceeding 100 mph/160 km/h from the relevant
table on the following pages. Otherwise tire
damage and accidents could occur.◀
Tire inflation pressure values over
100 mph/160 km/h
X3 28iA
With partial load:
Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires225/55 R 17 102
H M+S2.2 / 322.2 / 32225/60 R 17 99 H M
+S
245/50 R 18 100 V
M+S2.2 / 322.4 / 35245/45 R 19 102 V
M+S2.2 / 322.6 / 38Seite 208208
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Tire sizePressure specifications
in psi/kPaF: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.2 / 32
--
2.4 / 35F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.2 / 32
--
2.4 / 35F: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL2.2 / 32
--
2.6 / 38T 135/80 R 18 104
M4.2 / 604.2 / 60
With full load
Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires225/55 R 17 102
H M+S2.2 / 322.6 / 38225/60 R 17 99 H M
+S
245/50 R 18 100 V
M+S2.4 / 352.8 / 41245/45 R 19 102 V
M+S2.6 / 383.0 / 44F: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.2 / 32
--
2.6 / 38F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.2 / 32
--
2.6 / 38Tire sizePressure specifications
in psi/kPaF: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL-
2.6 / 382.8 / 41T 135/80 R 18 104
M4.2 / 604.2 / 60
X3 35iA
With partial load:
Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires245/50 R 18 100 V
M+S2.2 / 322.4 / 35245/45 R 19 102 V
M+S2.2 / 322.6 / 38F: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.2 / 32
--
2.4 / 35F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.2 / 32
--
2.4 / 35F: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL2.2 / 32
--
2.6 / 38T 135/80 R 18 104
M4.2 / 604.2 / 60
With full load:
Seite 209209
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Tire sizePressure specifications
in psi/kPaSpecifications in
psi/kilopascal with
cold tires245/50 R 18 100 V
M+S2.6 / 383.0 / 44245/45 R 19 102 V
M+S2.8 / 413.2 / 46F: 245/40 R 19 98 W
R: 275/40 R 19 101
W2.4 / 35
--
2.8 / 41F: 245/40 R 19 102
V M+S
R: 275/40 R 19 105
V M+S2.8 / 41
--
3.0 / 44F: 245/40 R 20 99 Y
XL
R: 275/35 R 20 102
Y XL2.4 / 35
--
3.0 / 44T 135/80 R 18 104
M4.2 / 604.2 / 60
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
T = up to 118 mph, 190 km/h
H = up to 131 mph, 210 km/h
V = up to 150 mph, 240 km/h
W = up to 167 mph, 270 km/h
Y = up to 186 mph, 300 km/h
Tire Identification Number
DOT code: DOT xxxx xxx 3510
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
3510: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Tire age
DOT … 3510: the tire was manufactured in the
35th week in 2010.
Recommendation: regardless of wear, replace
tires at least every 6 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Federal
Safety Requirements in addition to these
grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded
150 would wear one and one-half, 1 g, times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, however,
and may depart significantly from the norm due
to variations in driving habits, service practicesSeite 210210
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