engine BMW 325Ci CONVERTIBLE 2002 E46 Service Manual

139n
OverviewControlsMaintenanceRepairsDataIndex
Battery FusesBattery careThe battery is maintenance-free, that is,
the original electrolyte will normally last
for the service life of the battery under
moderate climatic conditions.
Please consult your BMW center
whenever you have any questions
concerning the battery. The battery is
completely maintenance-free; the
following section is provided for your
information only.<
Never disconnect the battery
when the engine is running; the
ensuing voltage surge would seriously
damage the vehicle's onboard elec-
tronic systems.<
Charging the batteryWhen charging the battery in the
vehicle, leave the engine off at all times.
Connect the charge cables to the termi-
nals in the engine compartment. For
terminal locations refer to Jump-
starting on page 140.
Return used batteries to a recycling
point or your BMW center. Maintain
the battery in an upright position for
transport and storage. Secure the
battery against tilting during transport.<
The fuses are located in the glove
compartment behind a cover secured
by two snap clips.
Do not attempt to repair a blown
fuse or replace it with a fuse
having a different color or amperage
rating. To do this could cause a fire in
the vehicle resulting from a circuit over-
load.<

140n
Do not use spray starter fluids to start
the engine.
When your battery is discharged you
can used two jumper cables to start
your vehicle with power from the
battery in a second vehicle. You can
also use the same method to help start
another vehicle. Always use jumper
cables with fully insulated handles on
the terminal clamps.
Do not touch high-voltage wiring
and cables on a running engine.
Contact with components carrying high
voltage can be harmful or fatal. Care-
fully observe the following instructions
to avoid personal injury and/or damage
to one or both vehicles.<
1. Ensure that the battery in the support
vehicle is also rated at 12 volts. This
information is provided on the top of
the battery casing
2. Do not disconnect your battery from
your vehicle's electrical system.
Switch off all electrical accessories in
both vehicles
3. Make absolutely certain that there is
no contact between the bodywork of
the two vehicles Ð short circuit
hazard
4. Start the engine on the support
vehicle and allow it to run
5. Use one jumper cable (+) to connect
the positive terminal of the battery in
the support vehicle with the auxiliary
positive terminal provided in the
engine compartment of your BMW
(arrow 1). The cover on this auxiliary
terminal is identified by a "+" symbol.
Remove by pulling the tab
6. Next, connect one end of the other
jumper cable (Ð) to either the support
vehicle's negative battery terminal or
a suitable ground on its engine or
bodywork. Connect the other end to
the negative battery terminal or a
suitable ground on the vehicle being
started. There is a special nut on
your BMW (2)
Always adhere to this sequence
when connecting jumper cables;
failure to observe this procedure can
lead to sparks at the battery terminals
and pose an injury hazard.<
7. Start the support vehicle's engine
and let it run at an increased idling
speed for a few minutes. Start the
engine on the vehicle needing the
jump-start, and allow it to run as
usual. If the first start attempt is not
successful, wait a few minutes
before another attempt in order to
allow the discharged battery to
recharge
8. Before disconnecting the jumper
cables let the engines run for a few
minutes
9. Then disconnect the jumper cables
in reverse sequence.
Depending on the cause of the fault,
have the battery recharged by your
BMW center.
Jump-starting

144n
BMW 325Ci BMW 330Ci
Displacement
Number of cylinderscu in (cmm) 152.2 (2,494)
6181.8 (2,979)
6
Maximum power
at engine speedhp (kW)
rpm184 (135)
6,000225 (165)
5,900
Maximum torque
at engine speedlb ft (Nm)
rpm175 (237)
3,500214 (290)
3,500
Compression ratioe
10.5 10.2
Stroke
Borein (mm)
in (mm)2.95 (75)
3.31 (84)3.53 (89.6)
3.31 (84)
Fuel-injection system Digital electronic engine-management system (DME)
Engine data

147n
OverviewControlsMaintenanceRepairsDataIndex
Capacities
Notes
Fuel tank
Reserve gal. (liters)
gal. (liters)approx. 16.6 (approx. 63)
approx. 2.1 (approx. 8)Fuel specification, refer to
page 23
Windshield/headlamp washer reservoir quarts (liters) approx. 5.6 (approx. 5.3) Specifications, refer to page 120
Cooling system including heating circuit quarts (liters) approx. 8.9 (approx. 8.4) Specifications, refer to page 123
Engine oil and filter change quarts (liters) approx. 6.9 (approx. 6.5) BMW High Performance
Synthetic Oil
Specifications, refer to page 121
Manual and automatic transmission
and differentialÐ Lifetime lubricant, no oil change
required

Everything from A to ZA
ABS (Antilock Brake
System)19, 109
Access to the rear51
Accessories10
Activated-charcoal filter96
Adaptive Transmission
Control (ATC)68
ADB (Automatic Differential
Brake)81
Adding
brake fluid124
coolant123
engine oil121
washer fluids120
Adjusting
electric power seats49
head restraints50
lumbar support50
mirrors55
steering wheel54
Air conditioning90
temperature setting91
Air distribution91, 94
Air nozzles90
Air outlets
ventilation90, 93 Air supply91, 94
Airbags18, 56
sitting correctly48
Alarm system28, 36
Antifreeze and anti-
corrosion agents123
disposal123
Antilock Brake System
(ABS)19, 109
Anti-theft system28, 29, 32
Aquaplaning109
Armrest99
ASC+T (Automatic Stability
Control plus Traction)80
Ashtray
front100
rear101
ATC (Adaptive Transmission
Control)68
Attach vehicle vacuum
cleaner101
AUC (Automatic recircu-
lated-air control)95
Automatic climate
control93, 94
Automatic cruise control72 Automatic Differential Brake
(ADB)81
Automatic dimming feature,
mirrors56
Automatic headlight
control87
Automatic recirculated-air
control (AUC)95
Automatic Stability Control
plus Traction (ASC+T)80
Automatic transmission67
Automatic transmission with
Steptronic18, 67
Average fuel
consumption78
Average speed78
Axle loads146
B
Backup lamps66
bulb replacement133
Battery139
care139
charging139
disposal139
Battery charge current
indicator17 Belts, safety52
Beverage holder100
Blower91, 94
BMW High Performance
Synthetic Oil122
BMW Maintenance
System125
BMW sports seat,
adjustment49
BMW Universal
Transmitter97
Bore144
Bottle holder, refer to
beverage holder100
Brake fluid124
disposal124
warning lamp17, 124
Brake fluid level109
Brake hydraulic system,
warning lamp17
Brake lamps
bulb replacement133
Brake pads19

A-Z

Everything from A to Z
151n
OverviewControlsMaintenanceRepairsDataIndex
Brake system108, 109
brake pads110
brake rotors,
corrosion110
defect in hydraulic
circuits109
disc brakes110
Break-in procedure108
Bulbs and lamps,
replacement131 C
California Proposition
65 Warning126
Canned beverage
holder100
Capacities147
Car care, refer to the "Caring
for your vehicle" manual
Car phone100
Car wash systems, refer to
the "Caring for your
vehicle" manual
Care of upholstery materials,
refer to the "Caring for your
vehicle" manual Cargo loading103
CBC (Cornering Brake
Control)18, 81
Cellular phone
refer also to the
"Telephone Owner's
Manual"
Center (high-mount) brake
lamp134
Center armrest99
Central locking system28
inside control button32
Changing a wheel135
Charging the battery139
Check Control76
Check engine oil level121
Checking coolant level123
Checking tire pressures24
Child-restraint systems59
Cigarette lighter101
Cleaning headlamps71
Cleaning windshield71 Clock76
refer also to the
"Telephone Owner's
Manual"
Clutch108
Cockpit14
Coin box100
Compartments99
Compression ratio144
Computer76
refer also to the "Owner's
Manual for Onboard
Computer"
Configuring individual
settings via Vehicle and
Key Memory63
Consumption78
display75
Convenience operation via
driver's door lock
fully-automatic convertible
top31
power windows31
Convertible top
compartment panel35
Convertible top, fully
automatic operation42 Coolant123
capacity147
Coolant temperature
gauge75
Cooling system,
capacity147
Copyright4
Cornering Brake Control
(CBC)18, 81
Correct sitting posture48
Cruise control72
Cruising range78
Cup holder, refer to
beverage holder100
Curb weight146
D
Data
dimensions145
engine144
weights146
Daytime driving lamps87
DBC (Dynamic Brake
Control)82
Defrost windows92, 94
Digital clock76
Dimensions145
Dipstick, engine oil121
Displacement144

Everything from A to ZDisplay lighting88
Displays15
Disposal
antifreeze and anti-
corrosion agents123
battery139
brake fluid124
engine oil122
Distance warning79
Door keys28
Doors
electrical malfunction31
locking and unlocking29
manual operation31
DOT Quality Grades,
tires114
Draft-free ventilation92, 95
Drive belts17
Driving notes109
DSC (Dynamic Stability
Control)81
DSC Dynamic Stability
Control19, 81
Dynamic Brake Control
(DBC)82
Dynamic Stability Control
(DSC)19, 81
E
Easy access to the rear51
Electric power seats,
adjustment49
Electric power windows38
Electrical malfunction
doors31
fuel filler door22
luggage compartment
lid33
Electrical malfunction,
closing only
fully-automatic convertible
top44
Elements of operation14
Emergency release of
luggage compartment lid
from luggage
compartment's interior34
Energy Control74
Engine and differential108
Engine compartment
essentials119
Engine coolant, refer to
coolant123 Engine data144
Engine oil
consumption121
disposal122
fluid capacity147
quality122
specifications122
viscosity122
Engine oil level121
check121
indicator19
Engine oil pressure
indicator17
Engine speed144
Engine, starting64
Engine, switching off65
Enlarging luggage
compartment35
Entering the rear51
Exterior mirrors55
F
Failure messages76
Filling capacities147
Fittings, tow starting and
towing141
Flashlight96 Flat Tire
Monitor85, 115, 138
Flat tires113, 135, 138
Floor panel, luggage
compartment35
Fog lamps88
Follow me home lamps87
Front fog lamps88
Front reading lamps89
Fuel consumption78
Fuel consumption
display75
Fuel filler door22
electrical malfunction22
manual operation22
Fuel gauge75
Fuel reserve indicator75
Fuel specifications23
Fuel tank capacity147
Fuel tank gauge75
Fuel-injection system144
Fully-automatic convertible
top42
electrical malfunction,
closing only44
manual closing44
Fuses139

Everything from A to Z
155n
OverviewControlsMaintenanceRepairsDataIndex
Seats48
adjustment48
adjustment
precautions48
Securing cargo103
Securing child-restraint
system59
Selector lever, automatic
transmission67
Service and Warranty Infor-
mation Booklet (US
models)125
Service Interval
Display75, 125
Setting the temperature91
Shiftlock67
Side airbags56
Sitting correctly with
airbags48
Ski bag102
Socket for electrical
appliances101
Spare key28
Spare tire135
Speedometer15
Sports seat, adjustment49
Standing lamps88
Starting the engine64 Steering wheel lock64
Stopping the vehicle65
Storage compartments99
Stowing cargo103
Stroke144
Switching off the engine65
Symbols8
Synthetic oils122
T
Tail lamps
bulb replacement133
Tank capacity147
Technical data144
Technical
modifications10, 126
Telephone preparation100
Temperature display
outside temperature77
Temperature gauge
engine coolant75
Temperature
layering92, 95
Temperature setting91, 94
Third brake light134 Tilt alarm sensor37
operating via remote
control30
switching off37
Tire change135
Tire condition113
Tire inflation
pressures24, 113
checking24
indicator83
monitoring83
Tire inflation pressures
table25
Tire Pressure Monitor
(RDC)83, 115, 138
Tire pressures24
refer also to tire inflation
pressures
Tire replacement114
Tire tread113
Tires108
Tools130
Torque144
Tow fittings141
Towing the vehicle141
Track145
Transmission66 Transmitter keys28
Transporting children
safely59
Tread depth, tires113
Tread wear113
Trip odometer74
Trunk lid, refer to luggage
compartment lid33
Trunk, refer to luggage
compartment35
Turn signal
indicators20, 69
Turn signals
bulb replacement132
Turning radius145
U
Uniform Tire Quality
Grading115
Universal Transmitter97
Use antifreeze, radiator123 V
Vehicle keys28
Vehicle Memory63
Vehicle weight146
Vehicle, starting64
Ventilation90, 93
draft-free92, 95

Everything from A to ZW

Warning lamps17
Warning messages76
Warning triangle22
Warranty and Service Guide
Booklet (Canadian
models)125
Washer fluid, adding120
Washer nozzles,
adjusting120
Washer reservoir, filling120
Washing your vehicle, refer
to the "Caring for your
vehicle" manual
Weights146
Wheel and tire
combinations116
Wheelbase145
Wheels and tires113
Wheelslip control, refer to
DSC81
Width145
Wind deflector46
Windows38 Windshield washer
system120
capacity147
filling120
Windshield wiper70
Winter tires117
Wiper system70
Work in the engine
compartment118
X
Xenon lamps131

To ensure that you always have conve-
nient access to all essential information
when you stop for fuel, we recommend
that you fill out the adjoining chart by
entering the data that apply to your
vehicle.
Consult the index for individual specifi-
cations.
Fuel Please enter your preferred fuel here. Engine oil The oil volume between the two marks
on the dipstick corresponds to approx.
1.1 US quarts (1 liter). Designation
QualityTire inflation pressures
Summer tires Winter tires
Front Rear Front Rear
Up to 2 passengers
4 passengers plus luggage
Refueling