11n
Controls and features
Operation, care and maintenance
Lamps:
Side lamps/Low beams87
Instrument panel lighting87
High beams/Parking lamps88
Fog lamps88
Interior lamps88
Controlling the climate
for pleasant driving:
Air conditioner90
Automatic climate control96
Seat heating101
Roller sun blind101
Interior convenience:
HiFi system101
Glove compartment102
Storage facilities102
Cellular phone104
Ashtray, front104
Cigarette lighter105
Ashtray, rear105
Clothes hooks105
Loading and transporting:
Through-loading system106
Ski bag107
Cargo loading108
Roof-mounted luggage rack109
Special operating instructions:
Break-in procedures112
Driving notes113
Catalytic converter113
Antilock Brake System
(ABS)115
Disc brakes117
Brake system118
Winter operation119
Power steering121
Cellular phones121
Radio reception121
Wheels and tires:
Tire inflation pressure122
Tire condition122
Tire replacement123
Tire rotation124
Wheel and tire
combinations125
Winter tires126
Snow chains126
Approved wheel and tire
specifications127
Under the hood:
Hood130
Engine compartment132
Washer fluids134
Washer nozzles134
Engine oil135
Coolant137
Brake fluid138
Vehicle Identification
Number139
Care and maintenance:
The BMW Maintenance
System140
Caring for your vehicle141
Airbags146
Vehicle storage147
Laws and regulations:
Technical modifications148
California Proposition
65 Warning148
ODB interface socket149
28n
Tire inflation pressure Comply with tire approval
specificationsThe inflation pressures in the table
apply to tires from BMW-approved
manufacturers. Your BMW center is
familiar with these manufacturers.
Higher pressures may be specified for
tires made by other manufacturers. You
will find a list of approved tires begin-
ning on page 127.
Your vehicle is equipped with tires that
meet US and European standards. We
recommend the exclusive use of BMW-
approved tires.BMW Tires
All pressure specifications in
the table are indicated in psi
(kilopascal) for cold tires
(cold = ambient temperature)
325CiAll summer tires 30 (210) 35 (240) 35 (240) 42 (290)
All winter tires 33 (230) 38 (260) 38 (260) 45 (310)
330Ci All summer and winter tires 33 (230) 38 (260) 38 (260) 45 (310)
All Space-saver spare tire 61 (420)
For all-season tires, use the same tire inflation pressure as for summer tires.
When using extra load tires (205/50 R 17), the inflation pressure increases
by 3 psi (20 kilopascal) for summer tires.
330Ci: when using 225/45 R 17 91 W tires, the air pressure decreases by
3 psi (20 kilopascal).
Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
111n
IndexDataTechnologyRepairsCar careControlsOverview
Special operating instructions:
Break-in procedures112
Driving notes113
Catalytic converter113
Antilock Brake System
(ABS)115
Disc brakes117
Brake system118
Winter operation119
Power steering121
Cellular phones121
Radio reception121
Wheels and tires:
Tire inflation pressure122
Tire condition122
Tire replacement123
Tire rotation124
Wheel and tire
combinations125
Winter tires126
Snow chains126
Approved wheel and tire
specifications127Under the hood:
Hood130
Engine compartment132
Washer fluids134
Washer nozzles134
Engine oil135
Coolant137
Brake fluid138
Vehicle Identification
Number139
Care and maintenance:
The BMW Maintenance
System140
Caring for your vehicle141
Airbags146
Vehicle storage147
Laws and regulations:
Technical modifications148
California Proposition
65 Warning148
OBD interface socket149
Car care
119n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationThe onset of winter is often accompa-
nied by rapid changes in weather.
Adaptations in driving style should be
accompanied by preparations on the
vehicle itself to ensure that your
progress through the winter remains
safe and trouble-free.CoolantBe sure that the coolant mixture
contains the year-round ratio of 50:50
water and extended-duty antifreeze/
corrosion protection. This mixture
provides protection against freezing
down to approx. Ð34 7 (Ð37 6).
Replace the coolant every four years.LocksBMW door lock deicer can be used to
free them if frozen. This deicer also
contains lubricant.
After using the deicer, we recommend
you treat the door lock with BMW lock
cylinder lubricant.
Rubber seals and components To prevent the weather-stripping from
freezing, apply a spray-on rubber treat-
ment or silicone spray to the door, hood
and luggage compartment lid seals.
A full range of car care products is
available from your BMW center.
BMW snow chains can be mounted on
both summer and winter tires. Mount
them in pairs on the rear wheels only
and comply with the manufacturer's
safety precautions. Do not exceed a
maximum speed of 30 mph (50 km/h).
In this rare situation, it may be effective
to deactivate the ASC+T/DSC system
for a brief period of time. Refer to
page 82.
Starting offWhen starting up from a full stop in
deep snow or when "rocking" the
vehicle to free it, it may be effective to
deactivate the ASC+T/DSC system for
a brief period of time. Refer to page 82.Driving on low-traction road
surfacesUse smooth, gentle pressure to control
the accelerator pedal. Avoid excessive
engine speeds and shift to the next
higher gear at an early point. On down-
hill grades or slopes, shift down to the
next lower gear at an early point. Main-
tain an adequate distance between
yourself and the vehicle ahead.
120n
Winter operationBrakesWinter road conditions substantially
reduce the amount of traction available
between the tires and the road surface;
the resulting increase in braking
distance is considerable and should
always be kept in mind.
ABS is intended to prevent the wheels
from locking during brake applications,
thus helping to maintain vehicle stability
and steering response.
If the ABS does not respond in a critical
braking situation and the wheels lock:
reduce the pressure on the brake pedal
until the wheels just start to roll again
while still maintaining enough force to
continue braking.
Then increase the pedal pressure,
reduce the pressure when the wheels
lock, reapply pressure etc.
This staggered braking procedure will
reduce stopping distances while
helping you maintain steering control.
You can then attempt to steer around
hazards after you have reduced pres-
sure on the brake pedal.Do not shift down on slick road
surfaces. Doing so could cause
the rear wheels to lose traction and
skid, that could result in the loss of
vehicle control.<
Depress the clutch during hard
braking on road surfaces that
provide only poor or uneven traction.<
Skid control Depress the clutch and let up on the
accelerator pedal, or place the selector
lever for the automatic transmission in
the "Neutral" position. Countersteer
carefully and attempt to regain control
of the vehicle.
ParkingEngage 1st or reverse gear. If your
vehicle is equipped with an automatic
transmission, place the selector lever in
Park. On vehicles with manual trans-
mission, also apply the parking brake
when parking on inclined surfaces. In
order to prevent the parking brake pads
from locking due to frost or corrosion,
dry them by gently applying the parking
brake as the vehicle is coming to a
stop. Make sure that following traffic is
not endangered.
The brake lamps do not come
on when the parking brake is
applied.<
125n
IndexDataTechnologyRepairsCar careControlsOverview
Wheel and tire combinations The right choice Use only BMW-approved tires, begin-
ning on page 127.
Due to the high speeds this vehicle can
reach, the use of specific brands,
specifications and sizes is mandatory.
Consult any BMW center for details.
Comply with local/national regulations.
The correct wheel/tire combina-
tion has an effect on the different
systems such as ABS, ATC,
ASC+T/DSC and ADB/DBC, whose
functioning would be otherwise im-
paired if the incorrect wheel/tire combi-
nations were used.
For this reason, use only tires of the
same manufacture and tread configura-
tion. In the event of a flat tire, for
example, remount the approved wheel/
tire combination as soon as possible.<
Codes on the tires and wheels The tire codes will aid you in selecting
the correct tire.
The codes on radial tires:
The speed rating indicates the approved
maximum speed for the tire.
Summer tires:
S = up to 112 mph (180 km/h)
T = up to 118 mph (190 km/h)
H = up to 130 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = up to 187 mph (300 km/h)
ZR = over 150 mph (240 km/h) Example:
Nominal width
in mm
Aspect ratio in X
Radial tire ID code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)
225/50 R
1692W
Winter tires and all-season tires:
Q M+S = up to 100 mph (160 km/h)
T M+S = up to 118 mph (190 km/h)
H M+S = up to 130 mph (210 km/h)
Codes stamped on light-alloy wheels:
Protect tire valve from dirt by using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks. Example:
Rim width
in inches
Code letter for
flange type
Symbol for full-drop
center rim
Rim diameter in inches
Hump on the 2 rim shoulders
7 x 16 H 2
J
126n
Winter tires
Choosing the right tire
BMW recommends winter tires (M+S
radial tires) for driving in adverse winter
road conditions. So-called all-season
tires with the M+S identification mark
do indeed possess better winter trac-
tion than summer tires that have the H,
V, W, Y and ZR speed ratings, they
generally fail to provide the same levels
of performance as winter tires.
In the interest of safe tracking and
steering response, install winter tires
made by the same manufacturer having
the same tread configuration on all four
wheels.
Mount only winter tires which have
been approved by BMW. Any BMW
center will be glad to provide you with
information on the best winter tires for
your particular driving conditions.
Do not exceed specified
maximum speeds
Never exceed the maximum speed
for which the tires are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Any BMW center
has the required technical knowledge
and the proper equipment and will be
happy to assist you.
<
Tire condition, tire pressure
Winter tires display a perceptible loss in
their ability to cope with winter driving
conditions once the tread wears to
below 0.16 in (4 mm), and therefore in
the interest of safety, should be
replaced.
Comply with the specified tire inflation
pressures Ð and be sure to have the
wheel and tire assemblies balanced
every time you change the tires.
Storage
Always store tires in a cool, dry place.
Store them away from light whenever
possible. Protect the tires against con-
tact with oil, grease and fuel.
Snow chains
*
Use narrow-link BMW snow chains
on
winter tires only in pairs and only on the
rear wheels. Comply with all manufac-
turer's safety precautions when mount-
ing the chains.
127n
IndexDataTechnologyRepairsCar careControlsOverview
Approved wheel and tire specifications Tire specifications Steel rim Light-alloy wheel
BMW 325Ci
All season tires
205/55 R 16 91 H M+S 7Jx16
Summer tires
205/55 R 16 91 V
225/50 R 16 92 W
225/50 ZR 16Ð 7Jx16
205/50 R 17 93 W extra load Ð 7Jx17
225/45 R 17 91 W Ð 8Jx17
Front: 225/45 ZR 17
Rear: 245/40 ZR 17Ð 7.5Jx17
8.5Jx17
Winter tires (M+S)
205/55 R 16 91 Q
225/50 R 16 92 Q Ð 7Jx16
205/50 R 17 93 Q extra load Ð 7Jx17
225/45 R 17 91 Q Ð 8Jx17
Space-saver spare tire
T 115/90 R 16 92 M 3.0Bx16
T 125/90 R 16 98 M 3.5Bx16 Ð
T 125/80 R 17 99 M 3.5Bx17 Ð
Comply with the specifications for tires and wheels in the vehicle's documents.
If you install tire sizes not approved by the manufacturer, an entry in the
vehicle's documents may be necessary.
Snow chains
*
You cannot mount snow chains with the
following tires:
225/50 R 16 92 W
225/50 R 16 92 Q M+S
225/50 ZR 16
225/45 R 17 91 W
225/45 R 17 91 Q/T/H M+S
245/40 ZR 17Mixed tiresFor details concerning tire manufac-
turers for mixed tires, refer to the
vehicle's documents.