check engine BMW 745LI SEDAN 2002 User Guide

Refueling
168
Refueling Fuel filler door
Always switch off the engine before
refueling. If you do not, fuel cannot be
filled into the tank and a message in the
Check Control will appear.<
To open and close: press the rear edge of
the fuel filler door.
Manual release In the event of an electrical defect in the
system, you can release the fuel filler door
manually:
1.Lift the handle to remove the cover
panel on the right side of the luggage
compartment
2.Extract and then pull the handle with the
fuel pump symbol.
Always observe all applicable precau-
tions and regulations when handling
fuels. Never carry spare fuel containers in
your vehicle. Whether empty or full, these
containers can leak, cause an explosion,
and lead to fire in the event of a collision.<
Simple and environmentally friendly
When handling fuels always observe
any safety guidelines posted at the
filling station.<
Keep the filler cap in the bracket attached
to the fuel filler door.
When refueling, insert the filler nozzle
completely into the filler pipe. Pulling the
nozzle out of the pipe during refueling
>results in premature pump shutoff
>can lead to reduced efficiency in the
fuel-vapor recovery system.
The fuel tank is full when the filler nozzle
clicks off the first time.
Close the filler cap carefully after
refueling, continuing until you hear
the detent engage. While closing, be sure
not to pinch the strap between the cap and
the filler pipe. A loose or missing cap will
activate a message in the Check Control.<
Fuel tank capacity, approx. 23.2 US gallons
(88 litres), including the reserve capacity of
approx. 2.6 gallons (10 litres).
Never attempt to continue driving
until the tank is completely empty, as
engine functions could be affected, and the
vehicle could sustain damage as a result.<

Under the hood
176
Engine compartment 1Engine oil dipstick, refer to next column
2Brake fluid reservoir, located beneath
the microfilter cover178
3Reservoir for windshield and headlamp
washer system73
4Engine oil filler neck177
5Coolant expansion tank178
6Jump-starting terminal187 Engine oilChecking oil level1.Park the vehicle on a level surface
2.Switch the engine off after it has
reached normal operating temperature 3.After approx. 5 minutes, pull the dipstick
out and wipe it off with a clean lint-free
cloth, paper towel, or similar material
4.Carefully push the dipstick all the way
into the guide tube and pull it out again
5.The oil should extend to between the
two marks on the disptick
As is the case with fuel economy, the rate
at which the engine uses oil is strongly
influenced by driving style and operating
conditions.
The space between the two marks on
the dipstick corresponds to approx.
1.1 US quarts (1 litre). Do not fill beyond
the upper mark on the dipstick. Excess oil
can damage the engine.

Under the hood
178
Checking coolant level Correct coolant level with the engine cold Ð
approx. 58 7 (20 6):
1.Turn the cap of the expansion tank
counterclockwise to allow any accumu-
lated pressure to escape, then continue
turning to open
2.The coolant level is correct when the
coolant extends to between the MIN and
MAX marks on the filler neck, refer to the
diagram adjacent to the filler neck
3.If the coolant is low, slowly add coolant
up to the specified level Ð do not overfill. Brake fluid
The symbol lights up and a
message appears in the Check
Control panel:
The brake fluid in the reservoir has fallen to
below the minimum level.
The brake fluid reservoir is located under
the microfilter housing trim panel on the
driver's side of the vehicle. To have brake
fluid added to the system, or to have the
source of any brake fluid loss traced and
rectified, please contact your BMW center,
which can also supply the factory-
approved DOT 4 brake fluids.
Brake fluid is hygroscopic: it absorbs
moisture from the atmosphere over
the course of time.
To ensure that the brake system continues
to provide safe and reliable performance,
remember to have the brake fluid changed
every two years at the latest, refer to
page 79 and to the Service and Warranty
Information Booklet (US models) or the Warranty and Service Guide Booklet
(Canadian models).
Brake fluid is toxic and also damages
vehicle paintwork. Always store brake fluid
in tightly-closed original containers kept
well away from the reach of children.
Do not spill the fluid and do not refill the
brake fluid reservoir to beyond the MAX
mark. Should it come into contact with hot
engine components, the brake fluid could
ignite and cause personal injury in the form
of burns.<
Always observe all applicable envi-
ronmental rules and regulations when
disposing of used brake fluid.<
A low brake-fluid level combined with
longer-than-usual pedal travel could be a
sign that one of the brake system's
hydraulic circuits has failed.
Proceed to the nearest BMW center.
Remember that pedal travel may be
increased, and there may also be a
substantial increase in the amount of pedal
pressure required to brake the vehicle.
Please adapt your driving style accord-
ingly.<
Warning lamp for Canadian models

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
179
Maintenance The BMW Maintenance
System The BMW Maintenance System is
designed to ensure that your vehicle will
continue to furnish consistent reliability
combined with optimal safety. 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 ultimate objective is
to furnish economical maintenance by
providing the ideal service for your indi-
vidual vehicle.
Should the day come when you decide to
sell your BMW, you will find that a complete
dealer service history is an asset of great
value. CBS Condition Based Service CBS is a more advanced version of the
Service Interval Display. Sensors combine
with highly-specialized algorithms to
supply service information that reflects
your vehicle's actual operating conditions
more precisely than ever before.
The system now furnishes individual
displays of the times remaining until the
deadlines for specific service operations as
well as official state inspections:
>Engine oil
>Brakes Ð separate for front and rear
>Microfilter/activated-charcoal filter
>Brake fluid >Coolant
>Spark plugs
>Vehicle check
>Official state inspections
CBS monitors both current and upcoming
service requirements. After accessing the
data stored in the vehicle's key, your BMW
service advisor is able to suggest precisely
the right array of service procedures for
your own individual vehicle.
By letting you define a service and mainte-
nance regimen that reflects your own indi-
vidual requirements, Condition Based
Service builds the basis for troublefree
driving.
You can find more detailed information on
the Service Interval Display on page 78.
Service and Warranty Information
Booklet (US models) and Service
Guide Booklet (Canadian models) Please consult your Service and Warranty
Information Booklet (US models) and
Service Guide Booklet (Canadian models)
for additional information on service
requirements.
Have service and repair operations
performed at your BMW center.
Take the time to ensure that these service
procedures are confirmed by entries in
your vehicle's Service and Warranty Infor-
mation Booklet (US models) and Service
Guide Booklet (Canadian models). These
entries verify that your vehicle has received
the specified regular maintenance, and
may also be required when submitting
warranty claims.< Care You can find everything you need to know
on this topic by consulting the separate
"Car care" manual.

Rules and regulations
180
Rules and regulationsCalifornia Proposition 65
Warning California laws require us to state the
following warning:
Engine exhausts, some of its constit-
uents, and certain vehicle compo-
nents contain or emit chemicals known to
the State of California to cause cancer and
birth defects or other reproductive harm.< OBD connector The Onboard Diagnostic (OBD) interface
socket is located on the left of the driverÕs
side under the instrument panel and under
a cover.
The cover has the letters OBD on it.
The purpose of the OBD system is to
ensure proper operation of the emission
control system for the vehicleÕs lifetime.
The system monitors emission-related
components and systems for deterioriation
and malfunction.
An illuminated lamp informs you of
the need for service, not of the need
to stop the vehicle. However, the
systems should be checked by your BMW
center at the earliest possible opportunity.
Under certain conditions, the indicator will
blink or flash. This indicates a rather severe
level of engine misfire. When this occurs,
you should reduce speed and consult the nearest BMW center as soon as possible.
Severe engine misfire over only a short
period of time can seriously damage emis-
sions control components, especially the
catalytic converter.
When the fuel filler cap is not properly
tightened, the OBD system can
detect the vapor leak and the indicator will
light up. If the filler cap is subsequently
tightened, the indicator should go out
within a few days.<

OverviewControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
185
additional precautions to secure the
vehicle from rolling.
3.Loosen the lug bolts 1/2 a turn
4.Set up the jack beneath the jacking
point closest to the flat tire. Ensure that the
entire surface of the jack's base is in firm
contact with the ground and that the jack
itself is standing completely vertical (not
tilted), and that the fitting on the top of the
jack will align with the rectangular recess
on the vehicle when you raise it, refer to
illustration
5.Jack the vehicle up until the wheel you
are changing is raised from the ground
6.Unscrew the lug bolts and remove the
wheel
7.Remove accumulations of mud or dirt
from the mounting surfaces of the wheel
and hub. Clean the lug bolts
8.Position the spare wheel. Secure the
wheel by turning at least two lug bolts into
opposite bolt holes
9.Screw in the remaining lug bolts.
Tighten all the bolts securely in a diagonal
pattern
10.Lower the jack and remove it from
beneath the vehicle.
11.Tighten the lug bolts in a diagonal
pattern
12.Check and correct the tire inflation
pressure at the earliest opportunity.
Protect valve stems and valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.
Vehicles with RDC Tire Pressure Monitor:
After mounting a spare tire or correcting the inflation pressure(s) always remember
to reinitialize the system, refer to page 92.
The vehicle jack is designed for
changing wheels only. Do not attempt
to raise another vehicle model with it or to
raise any load of any kind. To do so could
cause accidents and personal injury.
To ensure safety, always have the lug bolts
checked with a calibrated torque wrench to
ensure that they are tightened to the spec-
ified torque of 140 Nm as soon as
possible.<
Reverse the removal sequence to store the
wheel and tools in the vehicle.
When you mount wheels other than Orig-
inal BMW light-alloy wheels, different lug
bolts may also be required.
Always have damaged tires replaced and
the wheel and tire assembly rebalanced at
the earliest possible opportunity.
Battery Battery care The battery is 100% maintenance-free, i. e.,
the electrolyte will last for the life of the
battery when the vehicle is operated in a
temperate climate.
For all questions that regard the
battery, please consult your BMW
center. Since the battery is maintenance-
free, the following is for your information
only.< Charging the battery Only charge the battery in the vehicle via
the terminals in the engine compartment
with the engine off. Connections, refer to
Jump starting on page 187.
To avoid short circuits, as well as
possible fires and personal injury,
always disconnect the cable from the
battery's negative terminal before working
on the vehicle's electrical system.<

Replacing components
186
Battery switch Before storing the vehicle for an extended
period of several weeks or more, slide the
battery switch located behind the trim
panel on the right side of the luggage
compartment to OFF. This reduces the
current flow from the battery for the period
during which the vehicle remains parked.
A message appears in the Check Control
panel. Please take note of the supplemen-
tary information provided in the Control
Display.
Never disconnect either battery cable
from its terminal while the engine is
running Ð the resulting voltage surge would
destroy the vehicle's electronic systems.<
Return used batteries to a recycling
point or your BMW center. Maintain
the battery in an upright position for trans-
port and storage. Always restrain the
battery to prevent it from tipping over
during transport.< Fuses In the glove compartment Press the tab on the cover, see arrow, to
the front, then fold up the cover. Spare fuses and a set of tweezers are located
next to the fuse strip.
Never attempt to repair a blown fuse,
and do not replace a defective fuse
with a substitute of another color or
amperage rating, as this could lead to a
circuit overload, ultimately resulting in a fire
in the vehicle.<
In the luggage compartment Use the handle to pull down the trim on the
right wall.

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
187
Help Ð Giving and receiving Warning triangle*

The warning triangle is conveniently stored
in the onboard tool kit mounted on the
inside of the luggage compartment lid.
Comply with legal requirements
requiring you to carry a hazard
warning triangle in the vehicle.< First-aid kit*

You will also find the first-aid kit in the
onboard tool kit's container.
Some of the articles contained in the
first-aid kit have a limited service life.
For this reason, check the expiration dates
of each of the items regularly, and replace
any whose expiration dates have passed.
You can find replacements in any phar-
macy.
Always comply with laws requiring a first-
aid kit to be carried in the vehicle.< Jump-starting Never use spray fluids to start the engine.
When your battery is discharged you can
use 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. Use only
jumper cables with fully-insulated clamp
handles. To avoid the risk of potentially fatal
injury, always avoid all contact with
electrical components while the engine is
running. Carefully adhere to the following
sequence, both to prevent damage to one
or both vehicles, and to guard against
possible personal injury.<
1.The battery in the support vehicle must
also be rated at 12 volts. This information
can be found on the sticker affixed to the
battery
2.Switch off the support vehicle's engine
and switch off all electrical equipment and
accessories in both vehicles (except the
hazard warning flashers on the support
vehicle)
3.Ensure that no contact exists between
the bodywork on the two vehicles as there
is a danger of short circuits
4.Your BMW is equipped with an auxiliary
terminal specifically designed for jump-
starting located within the engine compart-
ment. The symbol "+" is embossed on the
cover of this auxiliary terminal. Pull the
cover for access to the terminal, see
arrow 1 in the illustration.
Start by connecting one end of a jumper
cable to the positive terminal connected to
the discharged battery, then connect the
other end to the positive terminal of the
battery on the support vehicle
5.Connect the ends of the other jumper
cable to the negative terminals on both
vehicles. Connect the other end to the
negative battery terminal or a suitable

Everything from A to Z
196 Backup lamp, bulb
replacement 183
Bass 141
Battery 185
Ð discharged 187
Battery switch 185, 186
"BC," refer to Computer 83
Belts 50
Beverage holders 112
Blinds 109
Blower 101
BMW active seat 52
"BMW ASSIST" 19, 22
BMW comfort seat 46
"Booktape" 153
Brake, malfunctions 178
Brake lamp, adaptive 94
Brake lamps, bulb
replacement 183
"Brake pads" 179
Brake pads 119
Brakes 119
Brake system
Ð brake fluid 178
Break-in procedures 118
Brief commands for voice
command system 29
"Brief info" 23
Bulb changes 181
Buttons in steering
wheel 18
CCalifornia Proposition
65 Warning 180
Call
Ð terminating 162
Calling 162
Ð from telephone
directory 163
Ð from the redial list 164
Ð from the Top 8 list 163
Ð redialing 164
Can holders, refer to Bever-
age holders 112
Capacities 194
Car care, refer to Car care
manual
Cargo, securing 120Cargo area
Ð capacity 194
Ð opening from the
inside 39
Car Memory 59
"Car parked" 103, 106
Car radio, see Radio 140
Car wash, refer to separate
Car care manual
Cassette 153
Cassette deck 153
Ð booktape 153
Ð fast-forward mode 154
Ð music search 154
Ð reverse 154
Ð selecting tape side 153
Ð skipping pauses 154
Ð switching on 153
CBC (Cornering Brake
Control) 91
CBS (Condition Based
Service) 179
"CD" 140, 146
CD changer 148
Ð fast forward 150
Ð humidity 148
Ð operating
temperatures 148
Ð random play 150
Ð reverse 150
Ð safety 148
Ð scan function 149
Ð skipping tracks 150
Ð switching on 149
Ð temperature range 148
CD player 146
Ð activation 146
Ð fast forward 146
Ð random selection 147
Ð reverse 146
Ð sampling 147
Ð scan 147
Ð skip track 146
Cell phone, refer to sepa-
rate Mobile phone
manual 158
Center (high-mount) brake
lamp 183
Center armrest 113
Center console, refer to
Comfort features 16Central locking
system 35, 38
"CHANGE" for
navigation 130
Changing bulbs 181
Changing bulbs, refer to
Lamps and bulbs 181
Changing language 86
Changing settings in Con-
trol Display 86
Changing units of measure
in Control Display 86
Check Control 80
Ð "Check" 81
Checking engine oil
level 176, 176
Checking tire
pressures 170
Child-restraint systems 57
Ð refer also to LATCH child-
restraint system 58
Child-safety locks 59
Child seats 57
Cigarette lighter 113
Cleaning, refer to Car care
manual
"Climate" 19, 22
"Clock" 86
Clock 77
Ð setting time and date 86
Closing
Ð from the inside 37
Closing assist
Ð doors 38
Ð luggage compartment
lid 39
Cockpit 12, 16
Coin box, see
Compartments 111
Cold start 62
Combination switch 71
"Comfort"
Ð "EDC" 92
Comfort features 16
Comfort seat 46
Ð in rear 47
"Communication" 19, 22
Compact Disc, see CD 146
Compartments 111

203
At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
Steptronic 69
Stopwatch 85
Storage, refer to Car care
manual
Storage compartments 111
Storing preset speeds,
refer to Programmable
cruise control 75
Straps, refer to
Loading 120
Summer tires 173
Sun blinds 109
Switch for battery 185
Switching air conditioner
on and off 101
Switching off the engine 62
Switching off with mobile
phone 162
Switching on
Ð audio 140
Ð cassette deck 153
Ð CD changer 149
Ð CD player 146
Ð MD player 151
Ð radio 140
Symbols 6
Ð Control Center 20
System failure reports, refer
to Check Control 80TTachometer 77
Tail lamps 183
Ð bulb replacement 183
"Tape" 140, 153
Technical
modifications 8, 98
Telephone, refer to Mobile
phone 158
Telephone directory
Ð creating voice command
telephone directory 162
Ð dialing numbers 163
Ð updating voice command
telephone directory 162
"Temp. distribution" 51
Temperature
adjustment 101
Temperature display, out-
side temperature 77Third brake lamp 183
Tilt function, passenger-
side mirror 54
Time
Ð of arrival, estimated 83
Timing 85
Tire change 184
Tire inflation pressures 170
Tire pressure monitor 92
Tire Quality Grading 172
Tires
Ð flat tire 184
Ð tire changes 184
Ð tire damage 171
Ð tire inflation
pressures 170
Ð tire pressure monitoring
system 92
Ð tire replacement 172
Ð tire size, refer to Wheel
and tire
combinations 173
Ð tire tread 171
Ð tire tread wear
indicators 171
Title search
Ð cassette deck 154
Tone in audio operation
Ð adjusting 141
"Tone" in sound system
operation 141
Tools 181
"TOP 8" 163
Torque 192
Tow fittings 188
Towing 188
Track 193
Traction Control System,
refer to DSC 89
Traffic congestion, refer to
Selecting new route 133
Transmission
Ð automatic transmission
with L mode 66
Ð automatic transmission
with Steptronic 69
Transmission
lockout 67, 70
Ð manual release 70
Travel route, see Route 132
Tread depth, tires 171"Treble" in sound system
operation 141
Trip odometer 77
Trunk lid
Ð emergency release 40
Ð refer to luggage compart-
ment lid 38
Turning circle 193
Turn signal indicators 71
Ð bulb
replacement 182, 183
UUndercoating, refer to Car
care manual
Uniform Tire Quality Gra-
ding (UTQR) 172
Universal garage door
opener 108
Upholstery care, refer
to Car Care
Used batteries 186
User controls 16
"Using motorway" 130VVacuum cleaner
connection 113
Valve caps 185
Vanity mirror 53
Vehicle battery 185
Vehicle dimensions 193
Vehicle keys 34
Vehicle stability control 89
Ventilation 102
Ventilation, draft-free 102
Ventilation while
parked 106
Vents, ventilation 99
"View" with navigation
system 132, 133
Viscosity 177
Voice command
system 18, 25
Voice command system
notebook 27