check engine light BMW 330Ci COUPE 2002 E46 Owner's Manual

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OverviewControlsMaintenanceRepairsDataIndex

Indicator and warning lamps

Technology that monitors itself

Indicator and warning lamps that are
identified by

l

are tested for proper
functioning whenever the ignition key is
turned. They each light up once for
different periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started, or
it lights up while the vehicle is moving.
You will see how to react to this below.

Red: stop immediately

Battery charge current



l

The battery is no longer being
charged. Indicates a defective
alternator drive belt or a problem with
the alternator's charge circuit. Please
contact the nearest BMW center.
If the drive belt is defective, stop
and switch off the engine immedi-
ately to prevent overheating and
serious engine damage. If the drive belt
is defective, increased steering effort is
also required.

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Engine oil pressure


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Stop the vehicle immediately
and switch off engine. Check
the engine oil level and top off as
required. If the oil level is correct,
please contact the nearest BMW
center.
Do not continue driving, as the
engine could sustain serious
damage from inadequate lubrication.

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Brake warning lamp

l

If the lamp comes on when the
parking brake is not engaged:
check the brake fluid level. Before
driving further, be sure to comply with
the instructions on pages 100 and 112
Brake warning lamp for Cana-
dian models.
Tire Pressure Monitor (RDC)/
Flat Tire Monitor

l

In addition, an acoustic signal is
sounded: a tire failure has occurred.
Reduce vehicle speed immediately to
stop the vehicle. Avoid hard brake
applications. As you steer the vehicle,
use caution and avoid overcorrecting.
For additional information: refer to
pages 73, 75

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Indicator and warning lamps

Add washer fluid
The washer fluid is too low. Top
off the fluid at the earliest
opportunity. For additional information:
refer to page 108
SERVICE ENGINE SOON

l

If the indicator lamp comes on
either continuously or intermit-
tently, this indicates a fault in the emis-
sions-related electronic systems.
Although the vehicle remains opera-
tional, you should have the systems
checked by your BMW center at the
earliest possible opportunity.
For additional information: refer to
page 115
SERVICE ENGINE SOON
warning lamp for Canadian
models.
Engine electronics

l

There is a fault in the electronic
engine-management system.
You can continue to drive with reduced
engine output or engine speed. Please
have the system inspected at your
BMW center.
Add coolant
The coolant level is too low.
Add coolant at the earliest
opportunity. For additional information:
refer to page 111

Green: for your information

Turn signal indicator
Flashes when the turn signal is
operated.
Rapid flashing indicates a system
malfunction.
For additional information: refer to
page 59
Cruise control
Lights up when the cruise
control is activated. Available for
operation via the multifunction steering
wheel.
For additional information: refer to
page 62
Front fog lamps
Lights up whenever you switch
on the front fog lamps.
For additional information: refer to
page 78

Blue: for your information

High beams
Comes on when the high beams
are on or the headlamp flasher
is actuated.
For additional information: refer to
pages 59, 78

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Fuel gauge Temperature gauge Service Interval DisplayOnce the indicator lamp stays on
continuously, there are still approx.
2 gallons (8 liters) of fuel in the fuel
tank.
For fuel tank capacity, refer to
page 135.
Certain operating conditions (such as
those encountered in mountainous
areas) may cause the needle to fluc-
tuate slightly.
Please refuel early, since driving
to the last drop of fuel can result in
damage to the engine and/or catalytic
converter.<
When you switch on the ignition, the
indicator lamp lights up briefly as an
operation check.
BlueThe engine is still cold. Drive at
moderate engine and vehicle speeds.RedWhen you switch on the ignition, the
warning lamp comes on briefly to
confirm that the system is operational.
If the lamp comes on during normal
vehicle operation: the engine has over-
heated. Stop and switch the engine off
immediately and allow it to cool down.
Checking coolant level, refer to
page 111.Between the blue and red zonesNormal operating range. The needle
may rise as far as the edge of the red
sector in normal operation.
Remaining distance to serviceThe displays shown in the illustration
appear for a few seconds when the
ignition key is in position 1 or after the
engine is started.
The next service due appears with the
message OIL SERVICE or INSPECTION,
together with the distance remaining in
miles (kilometers) before the next sched-
uled service.
The computer bases its calculations of
the remaining distance on the preceding
driving style.
A flashing message and a "Ð" in front of
the number mean that the service inter-
val has already been exceeded by the
distance shown on the display. Please
contact your BMW center for an
appointment.

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Tire Pressure Monitor (RDC)
*
The conceptRDC monitors the tire pressures at all
four wheels while the vehicle is moving.
The system provides an alert whenever
the inflation pressure drops significantly
below the specified pressure in one or
more tires.
In order for the system to "learn" the
correct tire inflation pressure, check the
inflation pressures in all tires according
to the inflation pressure table on
page 25 and make corrections as
necessary. Then activate the system.
This indicator lamp in the instru-
ment cluster will inform you if
the tire pressure is not correct.
To activate the system1. Turn ignition key to position 2 (do not
start the engine)
2. Press the button long enough for the
yellow indicator lamp in the instru-
ment cluster to light up for a few
seconds
3. After a few minutes driving time,
RDC sets the current inflation pres-
sures in the tires as the target values
to be monitored.
You will only have to repeat this proce-
dure following a correction of the tire
inflation pressure. Otherwise, RDC
functions automatically when the igni-
tion key is in position 2, and thus oper-
ates whenever the vehicle is driven.
In the event of loss in inflation
pressureIf the inflation pressure has dropped
significantly over a long period of time
(which is normal for any tire), the yellow
indicator lamp will come on.
This alerts you to have the tires inflated
to the specified pressures as soon as
possible.
If you are prompted to check the
tire pressure shortly after a
correction has been made, this indi-
cates that the corrected values were
not accurate. Please check the inflation
pressure again and make corrections
according to the inflation pressure
table. Then activate the system once
again.<

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Coolant
Do not add coolant to the cooling
system when the engine is hot. If
you attempt to do so, escaping coolant
can cause burns.
To avoid the possibility of damage later
on, never use anything other than
factory-approved, nitrite and amino-
free extended-duty antifreeze with
corrosion inhibitor. Your BMW center is
familiar with the official specifications.
Antifreeze and anti-corrosion agents
are hazardous to health. You should
always store them in their original
container and in a location which is out
of reach of children.
Extended-duty antifreeze with corro-
sion inhibitor contains the flammable
substance ethylene glycol. For this
reason, do not spill extended-duty anti-
freeze with corrosion inhibitor on hot
engine parts. It could ignite and cause
serious burns.<
Checking coolant levelCorrect coolant level for cold engine
(approx. 68 7 or +20 6):
1. Open the cap for the expansion tank
by turning it slightly counterclock-
wise to allow accumulated pressure
to escape. Then open
2. The coolant level is correct when the
upper end of the red float is at least
even with the upper edge of the filler
neck, but no more than 0.8 in (2 cm)
above it Ð that is, up to the second
mark on the float (refer also to the
schematic diagram next to the filler
neck)
3. If necessary, add coolant. If the
coolant is low, slowly add coolant
until the correct level is reached Ð do
not overfill.
Comply with the applicable envi-
ronmental laws regulating the
disposal of extended-duty antifreeze
with corrosion inhibitor.<

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OBD interface socketThe interface socket for onboard diag-
nostics is located on the left-hand side
of the driver's side, on the underside of
the instrument panel and under a cover
panel. The cover has the letters OBD on
it.
This interface makes it possible to
access data on emissions-related
components using special equipment.
An illuminated indicator informs
you of the need for service, not
that you need to stop the
vehicle. However, the systems should
be checked by your BMW center at the
earliest possible opportunity.
If the indicator blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact the nearest
BMW center immediately. Severe
engine misfiring over even a short
period of time can seriously damage
emission control system components,
especially the catalytic converter.
Service Engine Soon warning
lamp for Canadian models.
If the fuel filler cap is not on tight
enough, the OBD system can
detect leaking vapor and the indicator
will light up. If the fuel filler cap is then
tightened, the indicator will usually go
out after a short period of time.<

Everything from A to Z
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OverviewControlsMaintenancRepairsDataIndex
C
California Proposition
65 Warning114
Canned beverage holder88
Capacities135
Car care, refer to the "Caring
for your vehicle" manual
Car keys28
Car wash systems, refer to
the "Caring for your
vehicle" manual
Care of upholstery materials,
refer to the "Caring for your
vehicle" manual
Cargo loading93
CBC (Cornering Brake
Control)18, 71
Cellular phone89
refer also to the separate
"Owner's Manual"
Center (high-mount) brake
lamp122
Center 3-point belt in the
rear91
Center armrest87
Central locking system28
button32 Changing a wheel123
Check Control66
Check engine oil level109
Checking tire inflation
pressure24
Child restraint
installation52
Child-restraint anchorage
points51
Clean the headlamps61
Cleaning windshield61
Clock66
refer also to the "Radio
Owner's Manual" or to the
"Onboard Computer
Owner's Manual"
Clothes hooks90
Cockpit14
Coin box88
Compartments87
Compression132
Computer refer also to the "Onboard
Computer Owner's
Manual"
Configuring individual
settings with Vehicle and
Key Memory53
Consumption68
display65
Convenience operation via
the door lock
sliding/tilt sunroof31
windows31
Coolant111
Coolant temperature
gauge65
Cooling system,
capacity135
Copyright4
Cornering Brake Control
(CBC)18, 71
Correct sitting posture40
Cover, sun blinds86
Cruise control62
Cruising range68
Cup holder, refer to
beverage holder88
Curb weight134 Current check indicator17
D
Dash lighting78
Dashboard14
Data
dimensions133
engine132
technical132
weights134
Daytime driving lamp77
DBC (Dynamic Brake
Control)19, 72
Deep water99
Defrost setting82, 84
Defrost windows82, 84
Defrostable rear
window81, 85
Digital clock66
Dimensions133
Dipstick, engine oil109
Displacement132
Display lighting78
Displays15
Distance warning69

Everything from A to ZDivided rear-seat
backrest91
Door keys28
Doors
electrical malfunction31
locking and unlocking29
manual operation31
DOT Quality Grades102
Draft-free ventilation82, 85
Driving notes99
DSC (Dynamic Stability
Control)19, 71
Dynamic Brake Control
(DBC)19, 72
Dynamic Stability Control
(DSC)19, 71 E
Electric power windows38
Electrical heating, exterior
mirror47
Electrical malfunction
doors31
fuel filler door22
luggage compartment
lid33
sliding/tilt sunroof39 Elements of operation14
Emergency release of
luggage compartment lid
from luggage
compartment's interior35
Energy control64
Engine compartment
essentials107
Engine coolant, refer to
coolant111
Engine data132
Engine oil
capacity135
consumption109
level19
level, check109
level, indicator lamp17
pressure17
pressure, indicator
lamp17
quality110
specifications110
viscosity110
Engine speed132
Engine, starting54
Engine, switching off55
Entering the rear43
Exterior mirrors47
electrical heating47
F
Failure messages66
Fault displays66
Filling capacities135
Finger guard38
Fittings, tow starting and
towing129
Flashlight87
Flat Tire
Monitor75, 103, 126
Flat tires101, 123, 126
Floor mat, luggage
compartment35
Floor panel, luggage
compartment35
Fog lamps78
Follow me home lamps77
Fuel consumption68
display65
Fuel filler door22
electrical malfunction22
manual operation22
Fuel gauge65
Fuel preparation132
Fuel reserve indicator
lamp65
Fuel specifications23
Fuel tank capacity135
Fuel tank gauge65
Fuses127
G
Gasoline gauge65
Glove compartment87
Grilles83
Gross vehicle weight134 H
Handbrake56
Hands-free system89
Hazard warning triangle22
Head restraints43
Headlamp cover, care119
Headlamp flasher78
Headlamp washer
system108
capacity135
Headlamps77
Headlight control77
Headrests43
Heated seats46
Heater and ventilation83
Heavy cargo93
Height133
High beams20, 59, 78
bulb replacement119
Holder for canned
beverages88
Hood release106
Horn14