check engine BMW 328Ci COUPE 2000 E46 User Guide

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RepairsIndexOverview Controls Car care Technology Data
Brake fluidIf the warning lamp for the brake hy-
draulic system lights up and the parking
brake is released:
Check the brake fluid level and, if nec-
essary, refill it to the top mark.
Should you determine that the brake
fluid is low, refer the problem to your
BMW center, who can trace and rectify
any sources of leakage when refilling
the reservoir.
Your BMW center is familiar with the
specifications for approved brake fluids
(DOT 4).
Brake fluid loss can result in extended
pedal travel. Comply with the informa-
tion provided on page 109.460de128
Brake fluid is hygroscopic, that is,
it absorbs moisture from the air
over time.
In order to safeguard the proper opera-
tion of your brake system, have the
brake fluid changed every two years by
your authorized BMW center; also refer
to page 153 and to the Service and War-
ranty Information Booklet (US models)
or Warranty and Service Guide Booklet
(Canadian models).
Brake fluid is toxic and damages the ve-
hicle's paint. You should always store it
in its original container and in a location
that is out of reach of children.
Do not spill the fluid and do not fill the
brake fluid reservoir beyond the "MAX"
mark. The brake fluid could ignite upon
contact with hot engine parts and cause
serious burns.<
Comply with the applicable envi-
ronmental laws regulating the dis-
posal of brake fluid.<

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RepairsIndexOverview Controls Car care Technology Data
The BMW Maintenance System has
been designed as a reliable means of
providing maximum driving and operat-
ing safety – and as cost-effectively as
possible for you. With respect to the
previous version, maintenance costs
can clearly be reduced due to technical
innovations.
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. 462us022
Service Interval DisplayAdvanced technology is employed to
calculate the optimal maintenance in-
tervals. These are then indicated in the
Service Interval Display. While conven-
tional systems rely on distance traveled
alone to determine when service is due,
the BMW Maintenance System has for
years considered the actual conditions
under that the vehicle operates, be-
cause miles can be traveled in many
different manners:
From the point of view of maintenance,
62,000 miles (100,000 km) accumulated
in short-distance urban driving are not
the equivalent of the same distance
covered at moderate speeds in long-
distance highway travel.
The BMW Maintenance System in-
cludes the Engine Oil Service and
Inspections I and II.
Determining the maintenance intervals
according to the actual loads on the car
covers every kind of operating situation.
Minimal use drivers – those who drive
significantly less than 6,000 miles
(10,000 km) per year – should neverthe-
less have the oil changed at least every
two years, since engine oil ages regard-
less of the load.
Service and Warranty Information
Booklet (US models)
Warranty and Service Guide
Booklet (Canadian models)Please refer to the Service and War-
ranty Information Booklet (US models)
or Warranty and Service Guide Booklet
(Canadian models) for additional infor-
mation on maintenance intervals and
procedures.
As a precaution against rust, it might be
a good idea to have the body checked
for damage from rocks or gravel at the
same time, depending upon operating
conditions.
Have your BMW center do the
maintenance and repair.
Your BMW center is always informed on
the latest maintenance work and repair
techniques and equipped with the re-
quired special tools. In addition, check-
ing parts known from experience to be
subject to wear is a permanent part of
the maintenance specifications.
Be sure that all maintenance work is
confirmed in the Service and Warranty
Information Booklet or the Warranty and
Service Guide Booklet (Canadian mod-
els). These entries are your proof that
the vehicle has received regular mainte-
nance. They are also a prerequisite for
warranty claims.<
The BMW Maintenance System

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RepairsIndexOverview Controls Car care Technology Data
OBD connector The Onboard Diagnostic (OBD) connec-
tor is on the driver's side, underneath
the left-hand side of the instrument
panel, 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.460us250
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
possible opportunity.
If the indicator blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact your near-
est BMW center immediately. Severe
engine misfire over only a short period
of time can seriously damage emission
control components, especially the cat-
alytic converter.
When the fuel filler cap is not properly
tightened, the OBD system can detect
the vapor leak and the indicator will
light up. If the fuel filler cap is subse-
quently tightened, the indicator should
extinguish after a short time.

152n
Battery
A highly-explosive gas is gener-
ated when the battery is
charged.
If you happen to get acid in your
eyes, rinse thoroughly for 15 min-
utes with clear water. Consult a
physician immediately. Rinse your skin
or clothing with plenty of water if you get
acid spray on them. If electrolyte is acci-
dentally ingested, consult a physician
immediately.
In order to protect the battery
case from ultraviolet radiation,
do not place it in direct sunlight.
A discharged battery can freeze. Store
the battery in areas where temperature
remains above freezing.
Battery careThe battery is completely maintenance-
free, as per DIN 43 539/2; that is, the
amount of acid put in the battery origi-
nally will normally last for the service life
of the battery.
Charge conditionWith the help of the "Magic Eye", a
hydrometer, you can read the battery's
charge state:
>Green: Adequate charge.
>Black: Not adequately charged. The
battery must be recharged. Please
contact your authorized BMW center
for additional information.
>Yellow: Replace the battery.
The service life specified for the
battery can be achieved only if it is
always kept adequately charged. If the
vehicle is primarily used for stop-and-
go traffic, be sure to check the charge
state often.<460de252
Removal and installation
Do not disconnect the battery
cables when the engine is run-
ning, otherwise the ensuing voltage
surge will damage the vehicle's on-
board electronics.
Do not alter the positive terminal wiring
in any way, otherwise the safety battery
terminal's safety function will no longer
be guaranteed. Repair and disposal are
to be performed exclusively by trained
technicians.<
When removing the battery, disconnect
the cable on the negative terminal first,
then the cable on the positive terminal.
Loosen the center adjusting screw on
the battery retaining strap (use the
screwdriver included with the onboard
tool kit) and disconnect the strap.
When installing a battery, connect the
positive terminal first, then connect the
negative terminal.
When installing a battery, be sure
that it is mounted properly and
that the retaining bracket is installed
with the center adjustment screw. If this
is not done, the battery will not be ade-
quately secured in case of an acci-
dent.<

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RepairsIndexOverview Controls Car care Technology Data
Battery FusesCharging the battery Charge the battery in the vehicle only
when the engine is not running.
Before doing any work on the
electrical system, be sure to
unclamp the cable from the battery's
negative terminal, or it could cause
short-circuiting, a fire or personal
injury.<
If the vehicle is to be parked longer than
4 weeks, disconnect the battery from
the vehicle's electrical system by dis-
connecting the negative terminal cable.
If you intend to store your car for longer
than six weeks: Remove the battery,
charge it and store it in a cool (but frost-
free) room. Recharge the battery every
6 months at the latest, at the very least
before each installation, or else it will be
unusable. Every time the battery is dis-
charged, especially over extended peri-
ods, its service life is reduced.
Return used batteries to a recy-
cling point or your authorized
BMW center. Maintain the battery in an
upright position for transport and stor-
age. Secure the battery against tilting in
transit.<
Storage periods during which the
battery is disconnected are not
taken into consideration by the Service
Interval Display for changing the brake
fluid.
Therefore, make sure that the brake
fluid is changed every two years at the
latest, regardless of the display. Com-
ply with the information provided on
page 127.<
If an electrical accessory should fail,
switch it off and check the fuse. In glove compartment1 Open the glove compartment and
turn the two white quick-release
fasteners outward. Spare fuses and
plastic tweezers are located on the
fuse holder
2 Use the plastic tweezers to remove
the fuse for the accessory or equip-
ment that has stopped working
3 If the fuse is burned through (the
metal strip is melted and separated),
replace it with a new fuse of the same
ampere rating (color code).460de062

166n
Self-diagnostics All of the important electrical and elec-
tronic systems in the vehicle are tested
regularly and automatically – the driver
does not have to perform any extra op-
erations or adjustments.
The indicator lamps also come on briefly
after the ignition has been turned on.
While you are driving, the functional
status of the actuator motors (for the
windshield wipers, power windows,
seats, sunroof, etc.) is constantly ana-
lyzed by current measurements in their
relays. 462de258
In the same manner, the electrical resis-
tance of the airbag ignition generators
and all of the remaining airbag compo-
nents is measured at all times. Any fault
in this system would be detected imme-
diately by a current fluctuation that
would necessarily accompany it. The
fault would be indicated immediately by
the airbag warning lamp.
Even after you shut off the engine, the
overall functional status of your vehicle
is monitored. For example, all of the
flaps of the heating and ventilation sys-
tem travel to the nearest limit position.
This action ensures that the system will
be able to provide defrosting, regard-
less of other circumstances (if a mal-
function in the heating or ventilation
system should occur during the night
while the vehicle is parked, for in-
stance).
A calibration cycle runs every tenth time
the engine is shut off. During this cycle,
the actuator motors of all the heating
and ventilation flaps travel to their limit
stops in both directions. The limit posi-
tions and the return travel paths are
checked in this manner in order to en-
sure that appropriate adjustments for
the operating elements can be made at
any time.You will hear the sounds of the air flaps
as the heater/ventilation system carries
out its self-diagnostic functions after
the ignition is shut off. All of the other
self-diagnostics functions operate si-
lently in the background.
Any faults detected during these self-
diagnostics can be read out by your
authorized BMW center during the next
regularly-scheduled maintenance and
corrected with a minimum of time.

Everything from A to ZAABS (Antilock Brake
System) 22, 106
Accessories 6
Activated charcoal
filter 93, 154
Adaptive Transmission
Control (ATC) 66, 160
Adding engine oil 123
Adding washer fluid 173
Adjust the backrest 47
Adjust the temperature 90
Adjust the thigh support
area 49
Adjusting steering wheel 51
Air distribution 90
Air outlets 88
Air pressure 113
Air supply 91
Airbags 21, 57, 135, 161
Alarm system 42
Antenna 112
Antenna, Diversity 162
Antifreeze 126
Antifreeze, radiator 110
Antilock Brake System
(ABS) 22, 106
Anti-theft alarm system 42
Aquaplaning 104, 113
Armrest 95
Ashtray 96
Assisted rear entry 49AUC (Automatic
recirculated-air
control) 91
Automatic car washes 130
Automatic climate
control 88
remove window
condensation 91
Automatic recirculated-air
control (AUC) 91
Automatic speed control 72
Automatic transmission with
Steptronic 22, 66
Average consumption 78
Average speed 79
Avoiding unwanted
alarm 43
Axle loads 172
BBackrest
release 49
Backup lamps 65
bulb replacement 143
Battery 151, 174
capacity 174
charge 153
discharged 156
removal and
installation 152
Battery charge current 20
Belts 55Blower 91
BMW High Performance
Synthetic Oil 124
BMW Sports Seat 49
Bore 170
Brake fluid 127
Brake hydraulic system 20
Brake lamps
bulb replacement 143
Brake pads 22
Brake-in procedure 104
Brakes 108
Brakes, brake faults 109
Breaking in the vehicle 104
Bulb replacement 140
CCar Memory 54
Car phone, please refer to
the manufacturer's
operating instructions
Car radio 112
reception 112, 162
refer also to the car radio
operating instructions
Car vacuum cleaner,
connecting 96
Car wash 130
Care
exterior 131
interior 132
Care of upholstery 133Care of wool velour 133
Cargo loading 100
Caring for the vehicle
finish 131
Cassette operation, refer to
the radio operating
instructions
Catalytic converter 105
CBC (Cornering Brake
Control) 21, 107
CD mode, refer to the radio
operating instructions
Cellular phones 95, 112
Center (high-mount) brake
lamp 145
Center armrest 95
Central locking system 34
key 38
Changing tires 148
Check air pressure 27
Check Control 77
Child restraint
systems 56, 60
Child seat 56, 60
Cigarette lighter 96
Clock 77
refer also to the onboard
computer operating
instructions
Clothes hooks 97
Cockpit 16

Everything from A to Z
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RepairsIndexOverview Controls Car care Technology Data
Code, refer to the radio
operating instructions
Coin holder, cup holder 95
Combination switch 69
Compression 170
Computer 77
Configure settings 54
Consumption 78
Consumption display 75
Coolant 110, 126, 173
Coolant thermometer 75
Coolant, antifreeze 110
Cooling system 173
Cornering Brake Control
(CBC) 21, 107
Cruise control 72
Cruising range 79
Curb weight 172
Current check indicator 20DDashboard 16
Data
dimensions 171
engine 170
technical 170
weights 172
Daytime-driving light
switch 84
Defrost setting 91
Defrost windows 91
Defroster, rear window 92Digital clock 77
Dimensions 171
Dipstick 123
Disc brakes 108
Displacement 170
Display lighting 84
Displays 18
Distance warning 80
Diversity, antenna 162
Divided rear backrest 98
Door key 32
Door locks, care 110
Doors
emergency actuation 34
remote control 35
unlocking and locking 34
Drawbar load 172
Drive belts 174
Driving hints 104
Driving lamps 84
DSC (Dynamic Stability
Control) 22, 81, 161
Dynamic Stability Control
(DSC) 22, 81, 161
EElectric power seat 50
Electric power windows 44
Electrical accessories,
failure 153
Electrical system 174Electronic vehicle
immobilizer 33
Elements of operation 16
Emergency actuation
doors 34
tank cover 155
Energy Control 74
Engage 62
Engine
engage 62
Engine compartment 120
Engine coolant 126, 173
Engine data 170
Engine oil
filling capacity 173
quality 124
viscosity 124
Engine oil consumption 123
Engine oil level 21
check 123
Engine oil pressure 20
Engine oil
specifications 124
Engine speed 170
Entry from the rear 49
Exterior mirrors 52
FFailure messages 77
Fault
ABS 107
Fault displays 77Filler cap cover 26
Filling capacities 173
Filling the washer
reservoir 173
First aid 25
First aid kit 25
Fittings, towing 157
Flashlight 94
Flat tire 113, 148
Fog lamps 85
bulb replacement 143
Fog lights 85
Folding rear backrest 98
Follow-Me-Home lamps 84
Footbrake 108
Footwell lamps 85
bulb replacement 146
Front seat adjustment 47
Frost protection,
radiator 126
Fuel 26
preparation 170
Fuel consumption 78
Fuel consumption
display 75
Fuel gauge 75
Fuel quality 26
Fuel tank capacity 173
Fuel tank gauge 75
Functional status 166
Fuses 153

Owner service procedures from A to ZAActivated charcoal filter,
changing 154
Add brake fluid 127
Add coolant 126
Add engine coolant 126
Adjust washer nozzles 122
Avoiding a false alarm 43
Avoiding unwanted
alarm 43BBackup lamps
bulb replacement 143
Battery
add distilled water 152
charging 153
Brake lamps
bulb replacement 143
Brakes, brake faults 109CChanging tires 148
Check air pressure 27
Check Control 77
Check engine oil level 123
Check oil level 123
DDefrost windshields 91
Difficult steering 112
Doors
emergency actuation 34EElectrical accessories,
failure 153
Electrical failure
fuel filler door 155
Electrical fault
sliding/tilt sunroof 155
Emergency actuation
doors 34
Emergency closing
sliding/tilt sunroof 155
Emergency release
fuel filler door 155
Engine oil
add 123
quality 124
specifications 124
viscosity 124FFailure messages 77
Fault displays 77
First aid 25
First aid kit 25Fittings, towing 157
Flat tire 148
Fog lamps
bulb replacement 143
Footwell lamps
bulb replacement 146
Fuel filler door
manual release after
electrical fault 155
Fuses, replacing 153
GGlove compartment lamp
bulb replacement 146HHazard warning flashers 25
Hazard warning triangle 25
Headlamp cover, care 141
High beams, bulb
replacement 141IIndicator lamps 20
Inflated pressure 27
Interior lamps
bulb replacement 145JJack 148
LLicense plate light
bulb replacement 145
Low beams, bulb
replacement 141
Luggage compartment
emergency release 39
Luggage compartment
lamps
bulb replacement 146
Luggage compartment lid
emergency release 39MMaintenance 129
Malfunction displays 77
Microfilter, changing 154NNew transmitter, radio
remote control 147OOil
quality 124
specifications 124
viscosity 124
Onboard tool kit 140