
24
RefuelingFuel filler door
Always switch off the engine
before refueling, as it is not possi-
ble to add fuel with the engine running,
and attempts may also trigger the
SERVICE ENGINE SOON lamp.<
Press on the rear edge of the fuel filler
door to open and close it.
If an electrical malfunction occurs, you
can unlock the fuel filler door manually:
Pull the knob with the fuel pump sym-
bol, located on the right side wall of the
luggage compartment.
Always observe all safety precau-
tions posted at the service station
when handling fuel.
Never carry spare fuel containers in
your vehicle. Whether empty or full,
these containers can leak, cause an
explosion, or lead to fire in the event of
a collision.<
Simple and environmentally
friendly
Open the gas cap carefully to pre-
vent fuel from spraying out. Fuel
spray may cause injury.<
Keep the gas cap in the bracket
attached to the fuel filler door.
When refueling, insert the filler nozzle
completely into the filler pipe. Lifting the
nozzle during refueling
>results in premature pump shutoff
>and will reduce the effectiveness of
the vapor recovery system on the
pump.
The fuel tank is full when the filler noz-
zle shuts off the first time.

26
Vehicles with Flat Tire Monitor:
After correcting the inflation pressures,
reinitialize the system. Refer to
page 92.
Check the tire pressures on a reg-
ular basis – at least twice a
month – and before every extended
journey. If this is not done, incorrect tire
pressures can cause driving instability
and tire damage, ultimately resulting in
accidents.
Remember to check the inflation pres-
sure in the space-saver or standard
spare tire.
Inflate the spare tire to the highest infla-
tion pressure specified for your vehi-
cle.
apply to BMW approved tire sizes and
tire manufacturers. Your BMW center
can provide you with more information
about these. Other pressures may be
required for tires made by other manu-
facturers.
Your vehicle is equipped with tires that
not only meet US standards, but also
European standards. We recommend
the exclusive use of BMW approved
tires.
Tire inflation pressure

28
330xi 225/45 R 17 91 W 30/210 35/240 35/240 42/290
225/45 ZR 17
245/40 ZR 1730/210
––
35/24035/240
––
42/290
205/50 R 17 93 V M+S extra load, 205/50 R 17 93 W extra load,
205/55 R 16 91 Q M+S, 205/50 R 17 93 Q M+S extra load33/230 38/260 38/260 45/310
All Space-saver spare tire 61/420 BMW Tires
All pressure specifications in the table are indicated in psi/kilo-
pascal with cold tires
cold = ambient temperatureTire inflation pressure

32Opening and closing
KeysThe key set1Master keys with remote control unit
– these keys determine the functions
of the Key Memory. Refer to page 64.
You can mark the individual keys for
subsequent identification by apply-
ing the colored decals that you
received when accepting delivery of
your vehicle
In every master key there is an
extended-life battery that is
charged automatically in the ignition
lock as you drive.
For this reason, if you have master keys
that are not being used otherwise, use
those keys at least once a year while
driving for an extended period to
charge the battery.<
2Spare key – for storage in a safe
place, such as in your wallet. This key
is not intended for constant use. The
luggage compartment lid and the
glove compartment cannot be locked
and unlocked with this key. This is
useful for valet parking, for example
Central locking systemThe conceptThe central locking system is ready for
operation whenever the driver's door is
closed. The system simultaneously
engages and releases the locks on the
>doors
>luggage compartment lid
>fuel filler door.
The central locking system can be
operated
>from outside via the remote control
as well as via the driver's door lock
>from inside by pressing a button.
The fuel filler door is not locked when
the central locking system is activated
from the inside, refer to page 37. When
the system is actuated from the out-
side, the anti-theft system is also acti-
vated. This prevents the doors from
being unlocked via the lock buttons or
the release handle. The alarm system is
also activated or deactivated.
If locked from the inside, the central
locking system unlocks automatically in
the event of an accident, except on
doors that have been locked individu-
ally using the lock buttons, refer to
page 39. In addition, the hazard warn-
ing flashers and interior lamps come on.

33
Opening and closing – via the remote controlThe conceptThe remote control also provides two
additional functions beyond the central
locking feature:
>To switch on interior lamps, refer to
page 34.
With this function you can also
search for your vehicle when parked
in an underground garage, for
instance
>To open the luggage compartment
lid, refer to page 34.
The luggage compartment lid will
open slightly, regardless of whether it
was previously locked or unlocked.
Whenever you unlock or lock the vehi-
cle, you simultaneously deactivate/acti-
vate the anti-theft system, disarm/arm
the alarm system and switch the interior
lamps on/off.
You can have a signal set to con-
firm that the vehicle's locks have
engaged securely.<
Master keys with remote control
Persons or animals inside the
vehicle may be able to lock the
doors from the inside. For this reason,
always take the vehicle keys with you
so that the vehicle can be opened again
from the outside at any time.<
If it is no longer possible to lock
the vehicle via the remote control,
the battery is discharged. Use this key
while driving for an extended period in
order to recharge the battery.
To prevent unauthorized use of the
remote control, surrender only the
spare key when leaving the vehicle for
valet parking, for example.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<
1Unlock, convenience opening mode,
and disarm alarm system
2Lock and secure, arm alarm system,
activate interior lamps, disarm tilt
alarm sensor and interior motion sen-
sor
3Open the luggage compartment lid,
panic mode – trigger alarmTo releasePress the button once to unlock the
driver's door.
Press the button a second time to dis-
engage all vehicle locks.
OverviewControlsMaintenanceRepairsDataIndex

38
Luggage compartment lidThe lockOnly the master keys fit in the lock for
the luggage compartment lid, refer to
page 32.
To secure separatelyTurn the master key to the right past the
resistance point and then pull it out in
the horizontal position.
This locks the luggage compartment lid
and disconnects it from the central
locking system. This feature can be
used to prevent unauthorized access to
the luggage compartment when you
surrender the spare key only, refer to
page 32. This can be advantageous for
valet parking, for example.
To open from the outsidePress the button in the handle recess:
the luggage compartment lid opens
slightly.
The luggage compartment is lit when
the luggage compartment lid is opened.Manual operationIn the event of electrical malfunction
Turn the master key all the way to the
left – the luggage compartment lid will
open slightly.
The luggage compartment lid is locked
again as soon as you close the lid.
To open from the inside, refer to the fol-
lowing section.

92
Flat Tire Monitor*The conceptAs you drive, the Flat Tire Monitor
keeps track of pressure levels in all four
tires. The system alerts you whenever
the inflation pressure of a tire falls sig-
nificantly below the pressure of another
tire.
The system actually detects pressure
loss by monitoring differences in the
relative speeds of the four wheels. It
interprets variations outside specified
limits as severe pressure loss, and then
responds by generating a warning.Functional requirementsIn order for the Flat Tire Monitor to learn
the correct tire inflation pressure,
please do the following:
1. Check the tire inflation pressures in
all tires
2. Compare them with the tire inflation
pressure table on page 26 and cor-
rect them, if necessary
3. Initialize the system.
System limitations
The Flat Tire Monitor cannot pro-
vide you with advance warning of
sudden and severe tire damage caused
by external factors and does not detect
the balanced and very gradual pressure
loss that takes place in all four tires
over an extended period of time.<
On the other hand, the following situa-
tions can lead to a delayed detection of
pressure loss and even to the system
not functioning:
>Driving on snow-covered or slippery
roads
>Performance-oriented driving: slip at
the drive wheels, high levels of lateral
acceleration
>When driving with snow chains, false
warnings and undetected pressure
losses may occur
>When driving with a space-saver
spare tire, the Flat Tire Monitor can-
not function.
Initializing the system
Each time you correct the pres-
sure in a tire, or change a wheel or
tire, reinitialize the system immediately
afterwards. This requires a bit of driv-
ing.<
1. Before driving off, start the engine
but do not start driving
2. Press the button as long as you need
to until the yellow indicator lamp in
the instrument cluster lights up for a
few seconds
3. Drive off.
It takes a few minutes before the Flat
Tire Monitor can detect a flat tire and
issue a warning.

93
When driving with snow chains or
a space-saver spare tire, do not
initialize the system.<
Flat tire
The indicator lamp in the instru-
ment cluster lights up red. This
visual alert is accompanied by
an acoustic warning signal.
1. Carefully reduce speed and come to
a stop. Avoid sudden braking and
steering maneuvers
2. Determine which wheel is damaged
If this cannot be determined, con-
tact your BMW center.<
3. Replace the damaged wheel, refer to
Changing a wheel on page 147.
After replacing the damaged tire, initial-
ize the system.
Vehicles with Run Flat tires:
1. Carefully reduce your speed to under
50 mph / 80 km/h. Avoid strong
braking and steering maneuvers. Do
not exceed a speed of 50 mph /
80 km/h.
Because the sides of Run Flat
tires are reinforced, a drop in infla-
tion pressure usually cannot be
detected from the outside, refer to Run
Flat tires, page 150.<
2. To continue driving, follow the
instructions under Driving with a
damaged tire on page 151.
System malfunction
The indicator lamp in the instru-
ment cluster lights up yellow.
The Flat Tire Monitor is malfunc-
tioning or out of order. Please refer the
problem to your BMW center.
Brake force displayThe brake force display indicates to the
driver of the vehicle behind you how
hard you are braking your vehicle.
The display has two levels:
>Normal braking: the brake lamps
among the rear lamps and the center
brake lamp light up
>Hard braking or use of ABS: the tail
lamps light up with the same bright-
ness as the brake lamps and thereby
intensify the visual effect of the brake
lamps.
Flat Tire Monitor*
OverviewControlsMaintenanceRepairsDataIndex