check engine light BMW 325Ci CONVERTIBLE 2002 E46 Owner's Manual

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OverviewControlsMaintenanceRepairsDataIndex

Indicator and warning lamps

Technology that monitors itself

The system runs an operational check
on the indicator and warning lamps
identified with the

l

symbol each time
you switch on the ignition. 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 in the
following section.

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.

<

Engine oil pressure


l

Stop the vehicle immediately
and switch off the engine.
Check the engine oil level; 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.

<

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 109 and 124
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 and
stop the vehicle. Avoid hard brake
applications. As you steer the vehicle,
use caution to avoid overcorrecting.
For additional information refer to
pages 83, 85

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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 120
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 at your BMW center at the
earliest possible opportunity. For addi-
tional information refer to page 127
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 opportu-
nity. For additional information refer to
page 123

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 69
Cruise control
Lights up when the cruise
control is activated: available for
operation via the multifunction steering
wheel.
For additional information refer to
page 72
Fog lamps
Lights up whenever you switch
on the fog lamps.
For additional information refer to
page 88

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 69, 88

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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 147.
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. Shut off the engine immediately
and allow it to cool down.
Checking coolant level, refer to
page 123.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 INSPEC-
TION, together with the distance
remaining in miles (kilometers) before
the next scheduled service.
The computer bases its calculations
of the remaining distance on operating
conditions in the preceding period.
A flashing message and a "Ð" in front of
the number mean that the service
interval 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, even when the vehicle is
moving. The system provides an alert
whenever the inflation pressure drops
significantly below the specified pres-
sure in one or more tires.
In order for the system to learn the
correct tire inflation pressure, check the
inflation pressure 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
adopts the current inflation pressures
in the tires as the reference 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 when the engine
is cold (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, behind a specially
marked cover located beneath the
instrument 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
next 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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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
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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