check engine BMW 325i TOURING 2002 E46 User Guide

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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.
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:
From a maintenance point of view,
62,000 miles (100,000 km) of short-
distance urban driving cannot be
compared with 62,000 miles
(100,000km) of long-distance highway
travel.
The BMW Maintenance System
includes the Engine Oil Service and
Inspections I and II.
Determining the maintenance intervals
according to the actual use of the
vehicle covers every kind of operating
situation. However, drivers who cover
only extremely short distances Ð
substantially less than 6,200 miles
(10,000 km) annually Ð should still have
the engine oil changed at least every
2 years, as it continues to age regard-
less of whether the vehicle is used on a
regular basis.
Service and Warranty Information
Booklet (US models)/Warranty
and Service Guide Booklet (Cana-
dian 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, it is
advisable to have the body checked for
damage from rocks or gravel at the
same time, depending upon operating
conditions.
We recommend that you refer all
maintenance and repair opera-
tions to your BMW center.
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 confirm that your vehicle has
benefitted from regular maintenance,
and are also required for warranty
claims.<
The BMW Maintenance System

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Overview
Controls
Maintenance
Repairs
Data
Index
OBD interface socket
The 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. Your system should be
checked, however, at the earliest
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. <

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Changing a wheel Battery Fuses
Safety tires are only possible in
conjunction with Tire Pressure
Monitor (RDC) or Flat Tire Monitor.<
If the defective wheel cannot be seen
as such immediately from the outside,
check the tire inflation pressure at all
four wheels.
Have the tires changed by your
BMW center. For safety reasons,
do not have a safety tire repaired. Your
BMW center has the information
needed for working with safety tires
and is equipped with the necessary
special tools.<
If appropriate, please consult your
BMW center to reequip your
vehicle from summer to winter tires Ð or
vice versa.<
Battery careThe battery is absolutely maintenance-
free, that is, the original electrolyte will
normally last for the service life of the
battery under moderate climatic condi-
tions.
Please consult your BMW center
whenever you have any questions
concerning the battery. Since the battery
is absolutely maintenance-free, the
following is 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. vehicle, leave the engine off at all times.
Connect the charge cables to the termi-
nals in the engine compartment.
Terminal locations, refer to Jump-
starting on page 134.
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.<

Everything from A to Z
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Break-in procedures104
Bulbs and lamps
replacement125 C
California Proposition
65 Warning120
Can holder, refer to
beverage holder93
Capacities143
Car care, refer to the "Caring
for your vehicle" manual
Car phone94
Car wash systems, refer to
the "Caring for your
vehicle" manual
Care of upholstery materials,
refer to the "Caring for your
vehicle" manual
Cargo area35, 97
capacity142
Cargo area cover97
Cargo area lighting33
Cargo loading99 CBC (Cornering Brake
Control)18, 73
Cellular phone94
refer also to the separate
"Owner's Manual"94
Center (high-mount) brake
lamp128
Center armrest92
Central locking system28
control button32
Changing a wheel129
Check Control67
Checking engine oil
level115
Checking tire pressures24
Child-restraint systems51
Cigarette lighter94
Cigarette lighter socket94
Clean rear window62
Clean the headlamps62
Cleaning windshield62
Clock67
refer also to the "Radio
Owner's Manual" Clothes hooks105
Clutch104
Cockpit14
Coin box93
Compartments92
Compression ratio140
Computer68
refer also to the "Owner's
Manual Onboard
Computer"
Configuring individual
settings via Vehicle and
Key Memory54
Convenience operation via
the door lock
power windows31
sliding/tilt sunroof31
Coolant117, 143
Coolant temperature
gauge66
Cooling system including
heating circuit,
capacity143
Copyright4
Cornering Brake Control
(CBC)18, 73 Correct sitting posture40
Cruise control63
Cruising range69
Curb weight142
D
Data
dimensions141
technical140
weights142
Daytime driving lamps82
DBC (Dynamic Brake
Control)74
Deep water105
Defrost windows87, 89
Defroster, rear
window86, 90
Digital clock67
Dimming rearview mirror48
Dipstick, engine oil115
Displacement140
Display lighting83
Displays15
Disposal
antifreeze and anti-
corrosion agents117
battery133
brake fluid118
engine oil116

Everything from A to ZDistance warning70
Door keys28
Doors
electrical malfunction31
locking and unlocking29
manual operatiom31
DOT Quality Grades,
tires108
Draft-free ventilation87, 90
Drawbar weight142
Drink holder, refer to
beverage holder93
Drive belts17
Driving notes105
DSC (Dynamic Stability
Control)19, 73
Dynamic Brake Control
(DBC)74
Dynamic Stability Control
(DSC)19, 73 E
Electric power windows37
Electrical malfunction
doors31
fuel filler door22
sliding/tilt sunroof39
tailgate33 Electrical power socket95
Elements of operation14
Energy Control65
Engine compartment
essentials113
Engine coolant143
Engine data140
Engine oil
capacity143
consumption115
disposal116
quality116
specifications116
viscosity116
Engine oil level115
checking115
indicator lamp19
Engine specifications140
Engine speed140
F
Fault displays67
Filling capacities143
Fittings, tow starting and
towing135
Flashlight92
Flat Tire
Monitor80, 109, 132 Flat tires107, 129, 132
Fog lamps83
Follow me home lamps82
Front fog lamps83
Front seat adjustment40
Fuel consumption69
display66
Fuel filler door22
electrical malfunction22
manual operation22
Fuel gauge66
Fuel injection system140
Fuel reserve indicator
lamp66
Fuel tank capacity143
Fuel tank gauge66
Fuses133
G
Gasoline gauge66
Glove compartment92
Gross vehicle weight142 H
Handbrake57
Hands-free system94
microphone94 Harman Kardon premium
sound system91
Hazard warning triangle22
HDC (Hill Descent
Control)77
Head restraints43
Headlamp cover, care125
Headlamp flasher83
Headlamp washer
system114
capacity143
Headlight control82
Heated seats46
High beams20, 60, 83
bulb replacement125
High Performance Synthetic
Oil116
Hill Descent Control
(HDC)77
Holder for beverage
cans93
Hood release112
Horn14