2011 BMW 1 SERIES Under the hood

Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Contents
The quickest way to find special topics is to
consult the index, refer to page238.
Using this Owner's Manual
4Notes
7Reporting safety defects
At a glance
10Dashboard
16iDrive
21Letters and numbers
22Voice activation system
Controls
26Opening and closing
43Adjustments
52Transporting children safely
55Driving
68Controls overview
80Technology for driving comfort and
safety
91Lamps
96Climate
101Practical interior accessories
Driving tips
112Things to remember when driving
Navigation
120Navigation system
121Destination entry
130Destination guidance
137What to do if …
Entertainment
140On/off and tone
143Radio
146Satellite radio
151CD/DVD player and CD changer
158Music collection
163External devices
Communications
170Telephone
182Contacts
184BMW Assist
Mobility
192Refueling
194Wheels and tires
202Under the hood
207Maintenance
209Care
213Replacing components
219Giving and receiving assistance
Reference
226Technical data
231Short commands for the voice activation
system
238Everything from A to Z

Opening and closing
32
Closing
The handle recesses on the interior trim of the
trunk lid make it easier to pull down.
Make sure that the closing path of the
trunk lid is clear; otherwise, injuries may
result.<
Alarm system*
The concept
The vehicle alarm system responds:
>When a door, the hood or the trunk lid is
opened
>To movements inside the vehicle: interior
motion sensor, refer to page33
>When the car's inclination changes, for
instance if an attempt is made to jack it up
and steal the wheels or to raise it prior to
towing away: tilt alarm sensor, refer to
page33
>When there has been an interruption of
power supply from the battery
Depending on the market-specific version, the
alarm system briefly signals unauthorized entry
attempts by:
>An acoustic alarm
>Switching on
* the hazard warning flashers
Arming and disarming
When you lock or unlock the vehicle, either with
the remote control or at the door lock, the alarm
system is armed or disarmed at the same time.
You can open the trunk lid using the button
of the remote control even if the alarm system is armed, refer to page28. The lid is locked and
monitored again as soon as it is closed.
Panic mode
You can trigger the alarm system if you find
yourself in a dangerous situation.
Press the button for at least three seconds.
To switch off the alarm: press any button.
Switching off an alarm
>Unlock the car with the remote control, refer
to page27, or
>insert the remote control all the way into the
ignition lock.
Indicator lamp displays
>The indicator lamp under the inside rear-
view mirror flashes continuously: the sys-
tem is armed.
>The indicator lamp flashes after locking:
doors, hood or trunk lid are not properly
closed. Even if you do not close the alerted
area, the system begins to monitor the
remaining areas, and the indicator lamp
flashes continuously after approx.
10 seconds. The interior motion sensor and
the tilt alarm sensor are not activated.
>The indicator lamp goes out after unlocking:
your vehicle has not been disturbed while
you were away.
>If the indicator lamp flashes after unlocking
until the remote control is inserted in the
ignition, but for no longer than approx.
5 minutes: your vehicle has been disturbed
while you were away.

Under the hood
202
Under the hood
Do not work on the car unless you pos-
sess the necessary technical knowledge.
If you are unfamiliar with the statutory guide-
lines, have any work on the vehicle performed
only by a BMW center or by a workshop that
work according to BMW repair procedures with
correspondingly trained personnel. If this work
is not carried out properly, there is a danger of
subsequent damage and related safety haz-
ards.<
Hood
Releasing
Pull the lever.
Opening
To avoid damage, make sure that the
wiper arms are against the windshield
before you open the engine compartment. Do
not open the engine hood before the engine has
cooled down; otherwise, injuries may result.<
Press the release handle and open the hood.
Closing
Close the hood from a height of approx. 16 in/
40 cm with momentum. It must be clearly heard
to engage.
Make sure that the closing path of the
hood is clear; otherwise, injuries may
result.
If you see any signs while driving your vehicle
that the hood is not completely closed, stop at
once and close it securely.<

Under the hood
204
Possible displays
1Oil level OK
2Oil level is being checked.
This can take about 3 minutes if the car is at
a standstill on a level surface, or about
5 minutes while the car is on the move.
3Oil level down to minimum:
Add engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil on page205.
4Oil level is too high.
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
5The oil level sensor is defective.
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page207. Have the system checked as
soon as possible.
Display via iDrive
1."Vehicle Info"
2."Vehicle status"
3."Engine oil level"
Possible messages
>"Engine oil level OK"
>"Measurement not possible at this time."
>"Measuring engine oil level...":
This can take about 1 minute if the car is at a
standstill on a level surface and the engine
is running, and about 5 minutes while the
car is moving.
If engine oil was added, it may take up to
30 minutes to obtain an oil level reading.
>"Engine oil level below minimum. Add 1
quart!"
Add engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil below.
If the oil level is below the minimum value,
add engine oil immediately to avoid engine
damage.
>"Engine oil level too high! Have this
checked."
*:

Under the hood
206
Checking coolant level
1.Do not open the engine hood before the
engine has cooled down.
2.Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated
pressure to escape, then continue turning
to open.
3.The coolant level is correct if it is between
the maximum and minimum marks in the
filler neck, refer also to the diagram next to
the filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5.Turn the cap until there is an audible click.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.