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135Reference
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Adjusting volume
Turn knob1 on the CD player until the desired
volume is obtained.
You can also adjust the volume with buttons on
the steering wheel, refer to page10.
The setting is stored for the remote control cur-
rently in use.
Tone control
You can alter various tone settings, e.g. treble
and bass or the speed-dependent volume
increase.
The tone settings are applied to all audio
sources.
The settings are stored for the remote control
currently in use.
Changing tone settings
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Entertainment settings" and press
the controller.
4.Select "Audio" and press the controller.The tone settings can also be selected if you
have called up "Entertainment" in the start
menu:
Select "Set" and then "Tone", and press the
controller.
Treble and bass
1.Select "Treble / Bass" and press the con-
troller.
2.Move the controller to the left or right to
select "Treble" or "Bass".
3.Turn the controller until the desired setting
is selected.
Balance and fader
You can adjust the volume distribution in the
same manner as "Treble / Bass".
>"Balance": left/right volume distribution
>"Fader": front/rear volume distribution
Speed-dependent volume control
The speed-dependent volume control auto-
matically increases the volume with increasing
driving speed. You can set various stages for
the increase in volume.

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Tire inflation pressures for 325i with Sports package*
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/hTraveling speeds
including those exceeding
100 mph / 160 km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
225/50 R 16 92 V
225/45 R 17 94 V M+S XL29/200 35/240 29/200 36/250 35/240 42/290
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S29/200 35/240 29/200 35/240 32/220 39/270
Front: 225/45 R 17 91 V 29/200 - 29/200 - 35/240 -
Rear: 255/40 R 17 94 V - 32/220 - 33/230 - 38/260
Front: 225/40 R 18 88 W 32/220 - 33/230 - 38/260 -
Rear: 255/35 R 18 90 W - 35/240 36/250 - 42/290
Front: 225/35 R 19 88 Y XL 35/240 - 33/230 - 38/260
Rear: 255/30 R 19 91 Y XL - 39/270 - 36/250 42/290
More details on the permissible load and weights can be found on page201.

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Tire inflation pressures for 330i with Sports package*
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/hTraveling speeds
including those exceeding
100 mph / 160 km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
225/45 R 17 94 V M+S XL 29/200 36/250 32/220 38/260 38/260 45/310
225/45 R 17 91 H M+S 29/200 36/250 29/200 36/250 33/230 41/280
Front: 225/45 R 17 91 V 29/200 - 32/220 - 38/260 -
Rear: 255/40 R 17 94 V - 32/220 - 35/240 - 41/280
Front: 225/40 R 18 88 W 32/220 - 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 36/250 38/260 - 45/310
Front: 225/35 R 19 88 Y XL 36/250 - 35/240 - 38/260
Rear: 255/30 R 19 91 Y XL - 41/280 - 38/260 45/310
More details on the permissible load and weights can be found on page201.

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Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.
When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.
Run-Flat Tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, moreover, no spare wheel is
available. Your BMW center will be glad to
advise you.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired.<
Special characteristics of winter tires
BMW recommends winter tires for use in cold
winter driving conditions. Although all-season
M+S tires provide better winter traction than
summer tires, they generally fail to provide the
same levels of cold-weather performance as
winter tires.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view. Specialist tire dealers and your BMW center
can supply these labels.
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the sidewall
of the tire.
Snow chains*
Only certain fine-link snow chains have been
tested by BMW, classified as safe for use and
recommended. Consult your BMW center for
more information. Attach snow chains in pairs
and only to the rear wheels. Observe the manu-
facturer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
You are not permitted to mount snow chains to
tires of the following sizes:
>255/40 R 17
>255/35 R 18
>255/30 R 19
Do not initialize the Flat Tire Monitor if
snow chains are mounted, as the instru-
ment might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to switch on DTC temporarily, refer to
page79.<

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Maintenance
The BMW Maintenance
System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The service schedule also
includes operations related to the vehicle's
comfort and convenience features, such as
replacement of the filters for the inside air. The
objective is to optimize efforts with respect to
minimal vehicle maintenance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
CBS Condition Based Service
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
On the Control Display, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page69:
>Engine oil
>Brakes: separately for front and rear
>Microfilter/activated-charcoal filter
>Brake fluid
>Spark plugs>Vehicle check
>Legally mandated inspections depending
on local regulations
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. Your BMW Service Advi-
sor can read out this data from the remote con-
trol unit, and propose an optimized mainte-
nance approach. Whenever you take your car in
for servicing you should therefore hand your
BMW Service Advisor the remote control unit
that you last used.
Make sure that the date is always set cor-
rectly, refer to page72; otherwise the
effectiveness of Condition Based Service CBS
is not assured.<
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<

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195Reference
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nal of the battery or to the engine or body
ground of the vehicle to be started.
Starting the engine
1.Start the engine of the donor vehicle and
allow it to run for a few minutes at an
increased idle speed.
2.Start the engine on the other vehicle in the
usual way.
If the first start attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge.
3.Let the engines run for a few minutes.
4.Disconnect the jumper cables by reversing
the above connecting sequence.
If necessary, have your BMW center check and
recharge the battery.
Never use spray fluids to start the
engine.<
Tow-starting, towing away
Always observe all applicable towing laws
and regulations.<
Never allow passengers to ride in a towed
vehicle for any reason.<
Using a tow fitting
The screw-in tow fitting must always be carried
on the car. It can be screwed in at the front or
rear of the BMW.
It is stored in the onboard tool kit underneath
the cover on the right-hand side of the luggage
compartment, refer to page187.
In order to avoid damaging the tow fitting and
the vehicle, please follow these instructions:
use only the tow fitting provided with the vehi-
cle and screw it all the way in. Use the tow fitting
for towing only on roads. Avoid lateral loading of
the tow fitting, e.g. do not lift the vehicle by the
tow fitting.
Access to screw thread
Rectangular cover panel in bumper:
Press on the upper edges of the cover panel.
Front
Rear
Being towed
Make sure that the ignition is switched on,
refer to page49, as the low beams, tail
lamps, turn signals and windshield wipers
would no longer be available. If the electrical
system fails, do not attempt to tow away or tow-
start the vehicle. The electric steering wheel
lock cannot be disengaged and the car is not
steerable. Jump starting, refer to page194.
Power steering assistance is not available when
the engine is not running. Thus, braking and
steering will require increased effort.<
Switch on the hazard warning flashers, depend-
ing on local regulations.
Vehicles with manual transmission
Gearshift lever in neutral position.

Reference 201
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Mobility
Weights
Never exceed either the approved axle loads or
the gross vehicle weight.
Capacities
325i330i
Curb weight
with manual transmission
with automatic transmission lbs./kg
lbs./kg3,285/1,490
3,351/1,5203,417/1,550
3,450/1,565
Approved gross weight
with manual transmission
with automatic transmission lbs./kg
lbs./kg4,343/1,970
4,409/2,0004,475/2,030
4,508/2,045
Load lbs./kg 1,058/480 1,058/480
Approved front axle load lbs./kg 2,072/940 2,138/970
Approved rear axle load lbs./kg 2,425/1,100 2,469/1,120
Approved roof load capacity lbs./kg 165/75 165/75
Luggage compartment volume cu ft/l 16.2/460 16.2/460
Notes
Fuel tank
including reserve ofgal/liters
gal/litersapprox. 15.9/60
approx. 2.1/8.0Fuel grade: page169
Windshield washer system
including headlamp washers quarts/liters approx. 1.6/6.0For more details: page55
Engine with oil filter renewal
quarts/liters approx. 6.9/6.5 BMW High Performance
Synthetic Oil
Oil grades: page183

Reference 207
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Mobility
"Automatic programs" with
automatic climate control91
Automatic recirculated-air
control AUC91
Automatic station search139
Automatic transmission with
Steptronic51
– interlock51,52
– overriding selector lever
lock53
– shiftlock52
– sport program52
– towing away195
– tow-starting195
AUTO program for automatic
climate control90
"Autostore"
on the radio140
AUX-IN149
– port97
Average fuel consumption66
– setting the units68
Average speed65
"Avoid ferries" in
navigation124
Avoid freeways for
navigation123
"Avoid highways" in
navigation123
Avoiding unintentional
alarms35
"Avoid tollroads" in
navigation124
Axle loads, refer to
Weights201
"A - Z"154
B
Backrests, refer to Seats39
Backrest width adjustment40
Back seats, refer to Rear seats
– adjusting head restraints41
Backup lamps
– replacing bulbs190
Backup lamps, refer to Tail
lamps189
Balance, tone control135Bar, refer to Tow-starting,
towing away196
Bass, tone control135
Battery191
– charging191
– disposal191
– jump starting194
– temporary power failure191
Being towed195
Belts, refer to Safety belts43
Belt tensioner, refer to Safety
belts43
Beverage holders, refer to
Cup holders98
Black ice, refer to Ice
warning64
Blower, refer to Air flow
rate91
BMW Assist160
– enabling160
– services offered161
"BMW Contact"164
"BMW Contact
Numbers"164
BMW Maintenance
System185
"BMW Service"162
"BMW Service settings"161
Bottle holders, refer to Cup
holders98
Brake assist, refer to Dynamic
Brake Control78
Brake fluid184
– level too low184
– warning lamp184
Brake fluid, refer to Service
requirements69
Brake Force Display82
Brake hydraulics, refer to
Brakes184
Brake lamps
– Brake Force Display82
– replacing bulbs190
Brake pads, breaking in106
Brake rotors108
– brakes106
– breaking in106Brakes
– ABS78
– BMW Maintenance
System185
– brake fluid184
– brake pads184
– breaking in106
– handbrake51
– service requirements69
Brakes, refer to Braking
safely107
Brake system106
– BMW Maintenance
System185
– brake fluid184
– brake pads184
– breaking in106
– disc brakes108
Breakdown services, refer to
Roadside Assistance193
Breaking in the clutch106
Breaking in the
differential106
Break-in period106
"Brightness"76
Bulb changing, refer to Lamps
and bulbs187
Button for starting engine49
Buttons on steering wheel11
C
California Proposition 65
warning5
"Call"154
Call
– accepting153
– displaying accepted155
– ending154
– in absence155
– starting153
Calling
– from phone book154
– from Top 8 list155
– redialing155
Can holders, refer to Cup
holders98
Capacities201