check engine BMW M3 COUPE 2002 E46 User Guide

108n
Engine compartment essentials1 Filler neck for headlamp and
wind-
shield washer system109
2 Coolant expansion tank112
3 Positive terminal connection for
jump-starting (positive terminal)131 4 Engine oil filler neck110
5 Expansion tank for SMG
* hydraulic
unit (checking and possible refilling
by your BMW center)596 Engine oil dipstick110
7 Filler neck for brake fluid113

110n
Engine oilChecking engine oil level 1. Park the vehicle on a level surface
2. With the engine warmed to its normal
operating temperature, allow it to idle
for at least 15 seconds, then switch
off
3. After approx. 1 minute, 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 level should be between the
two marks on the dipstick.
As with fuel economy, oil consumption
is directly influenced by your driving
style and vehicle operating conditions.
The oil volume between the two marks
on the dipstick corresponds to approx.
1.4 US quarts (1.3 liter).
Adding engine oil While you should wait until the level has
dropped to just above the lower mark
before adding oil, you should never
allow the oil level to fall below this
mark.
Do not fill beyond the upper mark on
the dipstick. Excess oil will damage the
engine.
Before checking the engine oil level
after topping up, restart the engine and
allow it to run to obtain a correct
display. Then proceed as described
under "Checking engine oil level".

112n
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
containers and in a location inacces-
sible to children. Extended-duty anti-
freeze with corrosion inhibitor contains
ethylene glycol, a flammable
substance. For this reason, do not spill
extended-duty antifreeze with corrosion
inhibitor on hot engine parts. It could
catch fire and cause serious burns.<
Check the coolant level and
add coolant

Check the coolant level when the
engine is cold (approx. 687 or +206).
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 (refer to the arrow in the illustra-
tion), 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 Ñ do not overfill.
Comply with the applicable envi-
ronmental laws regulating the
disposal of extended-duty antifreeze
with corrosion inhibitor.<

114n
The BMW Maintenance System has
been designed as a reliable means of
providing maximum driving and oper-
ating safety Ð and as cost-effectively as
possible for you. Due to technical inno-
vations, maintenance costs were again
able to be markedly reduced with
respect to the previous model.
Please keep in mind that regular main-
tenance is not only necessary for the
safety of your vehicle, but also plays a
significant role in maintaining the resale
value of the vehicle.
Service Interval DisplayWhile conventional systems rely on
distance traveled alone to determine
when service is due, the BMW Mainte-
nance System has for years considered
the actual conditions under which the
vehicle operates, because miles can be
traveled in many different ways:
For example, 62,000 miles
(100,000 km) short-distance driving are
not equal to the same 62,000 miles
(100,000 km) of long-distance travel.
The BMW Maintenance System
includes the Engine Oil Service and
Inspections I and II.
Determining the maintenance intervals
according to the actual loads on the
vehicle covers every kind of operating
situation. Those who are outright
"Sunday drivers," driving fewer than
6,000 miles (10,000 km) per year Ð
should, nevertheless have their oil
changed every 2 years at the most, no
matter what the Service Interval Display
indicates, since engine oil breaks down
over time, regardless of use.
Service and Warranty Information
Booklet (US models)/Warranty
and Service Guide Booklet
(Canadian models)For additional information on required
maintenance intervals and procedures,
please refer to the Service and
Warranty Information Booklet (US
models), or the Warranty and Service
Guide Booklet (Canadian models).
As a precaution against corrosion, if
your vehicle is exposed to potential
damage from unimproved road
surfaces we suggest that you have the
body checked for damage from stone
chips and gravel at the same time.
Have your BMW center do the
maintenance and repair.
Be sure that all maintenance work is
confirmed in the Service and Warranty
Information Booklet (US models), or in
the Warranty and Service Guide
Booklet (Canadian models). These
entries are your proof that the vehicle
has received regular maintenance. They
are also a requirement for warranty
claims.<
The BMW Maintenance System

116n
OBD interface socketThe Onboard Diagnostic (OBD) inter-
face socket is located on the left of the
driver's side at the bottom of the instru-
ment panel and under a cover. The
cover has the letters "OBD" on it.
The purpose of the OBD system is to
assure proper emission-control system
operation for the vehicle's lifetime by
monitoring emission-related compo-
nents and systems for deterioration 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
If the indicator blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact your
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
143n
OverviewControlsMaintenanceRepairsDataIndex
Caring for headlamp covers,
refer to the "Caring for your
vehicle" manual
Caring for your vehicle's
paintwork, refer to the
"Caring for your vehicle"
manual
CBC (Cornering Brake
Control)101
warning lamp18
Cellular phone92
refer also to the separate
Owner's Manual
Center (high-mount) brake
lamp125
Center armrest91
Central locking system28
key33
Check Control72
Checking
engine coolant112t
engine oil level110t
tire inflation
pressures24t
Child seat security54
Child-restraint systems52
Cigarette lighter93
Clean the headlamps67 Clean the windshield67
Clock72
also refer to the "Radio
Owner's Manual"
Clothes hooks93
Cockpit14
Coin box91
Combination switch65
Compression136
Computer72
refer also to the "Onboard
Computer Owner's
Manual"
Configuring individual
settings with Vehicle and
Key Memory55
Connecting car vacuum
cleaner93
Consumption74
Consumption display71
Control elements14
Coolant112
Coolant system,
capacity139
Coolant temperature
gauge71
Copyright4 Cornering Brake Control
(CBC)101
warning lamp18
Cover, sun blinds89
Cruise control68
Cruising range74
Curb weight138
D
Data
dimensions137
engine136
technical136
weights138
Daytime driving lamps80
DBC (Dynamic Brake
Control)77
Deep water101
Defrostable rear window88
Defroster, rear window84
Defrosting windows87
Dimensions137
Dipstick, engine oil110
Disc brakes102
Displacement136
Display lighting81
Distance warning75
Divided rear backrest94
Door key28 Doors
electrical
malfunction29t
manual operation29t
operating manually29
remote control30
unlocking and
locking29, 30
Draft-free ventilation85, 88
Driving notes
aquaplaning101
brakes101
DSC (Dynamic Stability
Control)76
indicator lamp19
Dynamic Brake Control
(DBC)77
Dynamic Stability Control
(DSC)76
indicator lamp19
E
Electric power windows39
Electrical malfunction
doors29t
fuel filler door22t
luggage compartment
lid34
sliding/tilt sunroof41t

Everything from A to ZEmergency release of
luggage compartment lid
from luggage
compartment's interior36
Engine
displacement136
starting56t
torque136
Engine compartment
essentials108
Engine coolant112
add112t
checking112t
Engine cooling system,
capacity139
Engine data136
Engine oil
adding110t
capacity139
consumption110
for low ambient
temperatures111
level, checking110t
level, indicator lamp17
pressure17
pressure, indicator
lamp17
quality111 specifications111
thermometer70
viscosity111
Engine speed136
Entry to the rear45
Exterior mirrors48
F
Failure messages72
Filling capacities139
Filling the washer
reservoir109t
First-aid kit22
Flat tire103
repairing126
Flat Tire Monitor77
indicator lamp17, 19
Fog lamps82
bulb replacement123t
Folding rear backrest94
Follow me home lamps80
Footbrake102
Footwell lamps82
Front seat adjusting42
Frost protection,
radiator112
Fuel24
Fuel consumption74 Fuel consumption
display71
Fuel filler door22
electrical
malfunction22t
manual operation22t
Fuel gauge71
Fuel quality24
Fuel reserve indicator
lamp71
Fuel tank capacity139
Fuel tank gauge71
G
Gasoline24
Gasoline gauge71
Gearshift lever58
Glove compartment90
Gross vehicle weight138 H
Handbrake58
Hands-free system92
Hazard warning triangle22
Head restraints44
adjusting44 Headlamp cleaning
system108
Headlamp control80
Headlamp flasher81
Headlamp washer
system139
Heated seats47
Heavy loads96
Height137
HiFi system90
High beams65, 81
indicator lamps20
Holder for beverages91
Hood release107t
Horn14
I
Ice warning73
Identification, tires105
Ignition key28
Ignition key positions56
Ignition lock56
Imprint4
Indicator lamps17
Individual settings with
Vehicle and Key
Memory55
Inflation pressure,
tires24, 103