check engine BMW 325xi SEDAN 2002 E46 User Guide
Page 121 of 155
121n
OverviewControlsMaintenanceRepairsDataIndex
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 
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.< 
Page 147 of 155
Everything from A to Z
147n
OverviewControlsMaintenanceRepairsDataIndex
C 
California Proposition 
65 Warning120 
Capacities143 
Car care, refer to the "Caring 
for your vehicle" manual 
Car key28 
Car phone94 
refer also to the separate 
"Owner's Manual" 
Car wash systems, refer to 
the "Caring for your 
vehicle" manual 
Care of upholstery materials, 
refer to the "Caring for your 
vehicle" manual 
Cargo loading99 
Cassette operation, refer to 
the "Radio Owner's 
Manual" 
CBC (Cornering Brake 
Control)18, 73 
CD operation, refer to the 
"Radio Owner's Manual" 
Cellular phone94 
refer also to the separate 
"Owner's Manual"94 Center (high-mount) brake 
lamp128 
Center armrest92 
Central locking system28 
button32 
Changing a wheel/tire129 
Check Control68 
Checking coolant level117 
Checking engine oil 
level115 
Child-restraint systems52 
Clean the headlamps63 
Cleaning windshield63 
Clock68 
refer to the "Radio Owner's 
Manual" 
Cockpit14 
Coin box93 
Compartments92 
Compression ratio140 
Computer69 
refer also to the "Onboard 
Computer Owner's 
Manual"69 
Configuring individual 
settings via Vehicle and 
Key Memory55 Consumption70 
display67 
Convenience operation via 
the door lock 
sliding/tilt sunroof31 
windows31 
Coolant117 
add117 
capacity143 
checking level117 
Coolant temperature 
gauge67 
Cooling system including 
heater circuit, 
capacity143 
Copyright4 
Cornering Brake Control 
(CBC)18, 73 
Correct sitting posture41 
Cover, sun blinds91 
Cruise control64 
Cruising range70 
Cup holder, refer to 
beverage holder93 
Curb monitor47 
Curb weight142 
Current check indicator17 
D 
Data 
dimensions141 
engine140 
weights142 
Daytime driving lamps82 
DBC (Dynamic Brake 
Control)73, 74 
Deep water105 
Defrost windows and 
remove 
condensation87, 89 
Defroster, rear 
window86, 90 
Digital clock68 
Dimensions141 
Dipstick, engine oil115 
Displacement140 
Display lighting83 
Displays15 
Distance warning71 
Divided rear-seat 
backrest96 
Door key28  
Page 148 of 155
Everything from A to ZDoor mirror48 
Doors 
electrical malfunction31 
locking and unlocking29 
manual operation31 
DOT Quality Grades108 
Draft-free ventilation87, 90 
Drive belt17 
defect17 
Driving notes105 
DSC (Dynamic Stability 
Control)73 
indicator lamp19 
Dynamic Brake Control 
(DBC)73, 74 
Dynamic Stability Control 
(DSC)73 
indicator lamp19 E 
Electric power windows37 
Electrical malfunction 
doors31 
fuel filler door22 
luggage compartment 
lid33 
sliding/tilt sunroof40 Elements of operation14 
Emergency release of 
luggage compartment lid 
from luggage 
compartment's interior35 
Energy control66 
Engine compartment 
essentials113 
Engine coolant, refer to 
Coolant117 
Engine data140 
Engine oil 
add115 
capacity143 
consumption115 
level19 
level, check115 
level, indicator lamp17 
pressure17 
pressure, indicator 
lamp17 
Engine, starting56 
Engine, switching off57 
Exterior mirrors48 
F 
Failure messages68 
Filling capacities143 
Fittings, tow starting and 
towing135 
Flat tire132 
Flat Tire 
Monitor80, 109, 132 
warning lamp17 
Flat tires107, 129 
Fog lamps83 
Follow me home lamps82 
Front seat adjustment41 
Fuel consumption70 
display67 
Fuel filler door22 
electrical malfunction22 
manual operation22 
Fuel gauge67 
Fuel reserve indicator 
lamp67 
Fuel specifications23 
Fuel tank capacity143 
Fuel tank gauge67 
Fuel-injection system140 
Fuses133 
G 
Gasoline gauge67 
Glove compartment92 
Grilles88 
Gross vehicle weight142 H 
Handbrake58 
Hands-free system94 
Hazard warning triangle22 
HDC (Hill Descent 
Control)77 
Head restraints44 
Headlamp flasher61, 83 
Headlamp washer 
system114 
Headlight control82 
Headrests44 
Heated seats47 
Heavy cargo99 
Height141 
High beams20, 61, 83 
bulb replacement125 
Hill Descent Control 
(HDC)77 
Holder for canned 
beverages93 
Hood112 
Horn14