ECU BMW 325Ci COUPE 2001 E46 Owner's Guide

145n
IndexDataTechnologyRepairsCar careControlsOverview
Caring for your vehicleCare of upholstery materials Depressions in the upholstery that
result from everyday use can be
brushed smooth by brushing against
the nap with a lightly dampened brush.
The tendency of the pile to lie in a
particular direction on velour upholstery
is not a quality defect. Just as with
home textiles or clothing, this cannot be
avoided.
Lint on upholstery materials, textile or
leather remnants that have been worn
into the upholstery may be removed
with a lint brush or a Velcro
â brush. A
cleaning glove is available for particu-
larly "stubborn" lint. Stains and fairly
large areas of dirt should be cleaned off
without delay, using lukewarm water
and an interior cleaner, stain remover or
appropriate cleaning fluid. Brush the
fabric afterwards to restore its appear-
ance.
If the vehicle will be stored for an
extended period or if it is exposed to
intense sunlight, cover all the seats or
the windows to prevent fading.
Use the cleaning and car-care
products available at your BMW
center.<
The buildup of an electrostatic charge
on the seat covers, particularly if
atmospheric humidity is low, can give
the occupants an unpleasant electric
shock if they touch metal body parts
after leaving the vehicle. Although this
is not dangerous in any way, it can be
avoided by touching a bare or polished
metal part of the vehicle while getting
out.
Leather care The leather
* upholstery used by BMW
is a natural product of the highest
quality, processed using state-of-the-
art methods to ensure that it will main-
tain its high quality for years to come,
provided that it is properly cared for.
Because this product is manufactured
using natural materials, you must make
allowance for its special characteristics
and for the peculiarities of its use and
care.
Regular periodic cleaning and care are
essential, as dust and road dirt act as
abrasives in the pores and creases of
the material. This leads to wear spots
and premature brittleness on the
surface of the leather. We therefore
suggest that you clean the leather with
a vacuum cleaner or cloth at frequent
intervals.
For cleaning, use BMW leather cleaning
foam.
Since dirt and grease gradually attack
the protective layer of the leather, the
cleaned surfaces should be treated
with BMW leather care agent. This also
acts as an antistatic agent.
For protection against dampness or
moisture, treat the leather with a
BMW impregnating agent.

160n
Changing a wheelYou will need the followingIn order to avoid rattling noises later,
note the position of the tools when you
remove them and return them to their
original position when you are through
using them.
>Jack (1)
Raise the floor panel in the luggage
compartment (refer to page 41) and
loosen the red wing nut (arrow).
When you have completed work,
screw the jack all the way back
down. Fold the handle back and
insert it in its holder.
>Wedge (2)
Located behind the jack on the wall
in the luggage compartment. Loosen
the wing nut to remove it.460de058
>Spare tire or space-saver spare tire
Next to the jack.
Loosen the wing nut (arrow) by hand,
remove the storage shelf and take the
wheel out.
>Lug wrench
In the onboard tool kit on the under-
side of the luggage compartment lid
(refer to page 152).460de059
Procedure1 Read and comply with the safety
precautions provided on the
previous page.
2 Secure the vehicle from rolling:
Place the wedge against the rear
surface of the front tire on the side
opposite the side being raised. If
the vehicle is parked on a down-
ward slope, place the wedge
securely in front of the tire. If the
wheel must be changed on a
surface with a more severe slope,
take additional precautions to
secure the vehicle from rolling.
3 If your wheels are equipped with full
wheel covers
*: reach into the venti-
lation openings and pull off the
cover.
462de251

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IndexDataTechnologyRepairsCar careControlsOverview
Changing a wheel4 Loosen the lug bolts g turn.
5 Position the jack at the jacking point
closest to the flat tire (refer to the
center illustration) so that the jack
base is vertically below the jacking
point and the entire surface of the
head of the jack will move into the
square recess of the jacking point
(refer to the illustration detail) when
the jack is cranked.
6 Crank the vehicle up until the wheel
in question is raised from the
ground.
7 Unscrew the lug bolts and remove
the wheel.
8 Remove accumulations of mud or
dirt from the mounting surfaces of
the wheel and hub; clean the lug
bolts.462de252
9 Position the new wheel or the
space-saver spare tire on the hub
and screw at least two lug bolts
finger-tight into opposite bolt holes.
10 Screw in the remaining lug bolts.
Tighten all the bolts securely.
11 Lower the jack and remove it from
beneath the vehicle.
12 Tighten the lug bolts in a diagonal
pattern.462de266
13 If your wheels are equipped with full
wheel covers
*: position the wheel
cover with the valve opening over
the valve (arrow) and press it onto
the wheel with both hands.
14 Check and correct the tire's inflation
pressure at the earliest possibility.
For vehicles with Tire Pressure
Control (RDC):
Reactivate the system after
mounting the spare tire or
correcting the air pressure. Refer to
page 85.
Only use original BMW full wheel
covers, otherwise, the trim piece
may not fit securely. The full wheel
cover may not be installed on the
space-saver spare tire since this could
damage the cover.<
462de279

164n
BatterySymbolsYou will find the following symbols on
your vehicle battery. To avoid injury,
please comply with the corresponding
precautions whenever you work with or
near the battery.
Before handling the battery,
please read the following
information.
Wear eye protection. Do not
allow particles containing
battery acid or lead to come into
contact with your eyes, your skin, or
your clothing.
Battery acid is extremely corro-
sive. Wear eye protection and
protective gloves. Do not tip the
battery. Battery acid can leak from the
ventilation openings.
Do not allow children access to
batteries and battery acid.
Never allow sparks or open
flame in the vicinity of the
battery. Avoid sparks from elec-
trical cables or electrical equipment.
Turn the key to position 0 in the ignition
lock when disconnecting or connecting
the battery. Do not short circuit the
battery terminals. This creates a risk of
injury from high-energy sparks.
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 minutes with clear water.
Consult a physician immediately. If you
get acid spray on your skin or clothing,
rinse with plenty of water. If electrolyte
is accidentally 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.
Removal and installation
Do not disconnect the battery
when the engine is running. If you
do so, the ensuing voltage surge will
damage the vehicle's onboard
electronics.
Do not make any modifications in the
wires to the positive terminal. If you do
so, the protective function of the safety
battery terminal is no longer ensured.
Repair and disposal must be performed
by trained technicians only.<
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 adequately
secured in case of an accident.<

165n
IndexDataTechnologyRepairsCar careControlsOverview
BatteryCharging 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. Failure to do so can
result in short circuits, a fire or personal
injury.<
If you plan to park the vehicle for longer
than 4 weeks, disconnect the battery
from the vehicle electrical system by
disconnecting the cable at the negative
terminal. Have the battery recharged
with an appropriate battery charger.
If the vehicle is parked for more than
12 weeks, remove the battery, recharge
it and store it in a cool yet frost- and
dust-free area. During storage, have the
battery recharged every 3 months.
Also, recharge the battery before it is
reinstalled. If this is not done, the
battery will not be serviceable. Every
time the battery is discharged, espe-
cially over extended periods, its service
life is reduced.
Return used batteries to a recy-
cling center or your BMW center.
Maintain the battery in an upright posi-
tion for transport and storage. Secure
the battery to prevent it from tilting
during transport.<
Storage periods during which the
battery is disconnected are not
taken into consideration by the Service
Interval Display for changing the brake
fluid.
For this reason, be sure that the brake
fluid is changed every two years,
regardless of the information displayed.
Please read the pertinent information
on page 138.<

167n
IndexDataTechnologyRepairsCar careControlsOverview
Microfilter Fuel filler door Sliding/tilt sunroof
*
4 Remove the filter by pulling toward
the front and installing a new one.
5 Position the filter cover and secure it
with the three fasteners.460de157
Manual release Pull the knob with the fuel pump symbol
(arrow) on the right trim panel of the
luggage compartment. 460de178
Manual operation 1 Remove the interior lamp (refer to
page 157), reaching into the opening
and pushing out the panel.
2 Use an Allen wrench from the
onboard tool kit (refer to page 152) to
turn the sunroof's steel crank in the
desired direction.460de183

Everything from A to Z
193n
IndexDataTechnologyRepairsCar careControlsOverview
Cargo
loading108
securing108
Caring for the vehicle's
finish143
Cassette operation, refer to
the Radio Owner's Manual
Catalytic converter113
CBC (Cornering Brake
Control)21,116
CD operation, refer to the
Radio Owner's Manual
Cellular phone104,121
refer also to the separate
Owner's Manual
Center (high-mount) brake
lamp157
Center 3-point-safety belt in
the rear106
Center armrest102
Central locking system34
button38
Changing a wheel159
Changing tires159
Check Control77
Child restraint systems56
Child seat56
Child seat security62
Cigarette lighter105
Cleaning headlamps72
Cleaning windshield71
Clock78 Clock, refer also to the Radio
or Onboard Monitor
Owner's Manual
Clothes hooks105
Cockpit16
Code, refer to the Radio
Owner's Manual
Coin box, cup holder103
Combination switch70
Compression184
Computer77
Computer, refer also to the
Onboard Monitor Owner's
Manual
Configure settings54
Consumption79
Consumption display76
Contents10
Convenience operation
sliding/tilt sunroof34
windows34
Coolant119,137,187
antifreeze119
Coolant temperature
gauge76
Cooling system187
Copyright4
Cornering Brake Control
(CBC)21,116
Cruise control73
Cruising range79
Curb weight186
Current, check indicator20
D
Data
dimensions185
engine184
technical184
weights186
Daytime-driving lamp87
DBC (Dynamic Brake
Control)116
Deep water113
Defroster, rear
window92,100
Defrosting the
windows94,99
Digital clock78
Dimensions185
Dipstick135
Disc brakes117
Displacement184
Display lighting87
Displays18
Distance warning81
Diversity Antenna
system176
Divided rear backrest106
Door key32
Door locks, care119
Doors
emergency operation34
remote control35
unlocking and locking34
DOT Quality Grades123 Draft-free
ventilation93,100
Drive belts188
Driving hints113
Driving in winter119
Driving lamps87
DSC (Dynamic Stability
Control)22,82,175
Dynamic Brake Control
(DBC)116
Dynamic Stability Control
(DSC)22,82,175
E
Electric power seat50
Electric power windows44
Electrical accessories,
failure166
Electrical system188
Electronic vehicle
immobilizer33
Elements of operation16
Emergency operation
doors34
fuel filler door167
slidling/tilt sunrrof167
Energy Control75
Engine compartment132
Engine coolant137,187
Engine data184

Everything from A to Z
195n
IndexDataTechnologyRepairsCar careControlsOverview
Interior motion
sensor36,43
Interior rearview mirror53
automatic dimming
feature53,177
Interlock63
Intermittent wipe70 J
Jack159
Jump-starting168 K
Key Memory54
Keys32
with remote control32 L
Lamp switch87
Lamps152
LAMPS ON warning87
Lashing eyes108
LATCH attachment of the
child seat60
Leather care145
Length185
License plate lamp, bulb
replacement157
Lift the floor panel up and
hook it41 Light switch87
Light-alloy wheel127
Lighter105
Loads, securing108
Load-securing devices108
Louvers90,96
Low beams87
bulb replacement153
Lug bolts161
Lug wrench160
Luggage compartment41
capacity186
floor mat41
remote control37
secure separately39
Luggage compartment
lamps, bulb
replacement158
Luggage compartment
lid39
emergency release39
Luggage compartment
lighting39
Luggage rack109
Lumbar support49
M
M+S tires126
Maintenance76
Malfunction displays77
Manual transmission66 Manually controlled
recirculated-air99
Memory51
MFL (Multi-function steering
wheel)24
Microfilter93,166
Mirror memory51
Mirrors52
Mobile phones121
Modifications,
technical6,148
Multi-function steering
wheel (MFL)24
N
Navigation system, refer to
the Onboard Monitor
Owner's Manual
Neckrest48 O
OBD interface socket149
Obstruction protection44
Odometer75
Oil
additives135
capacity187
consumption135
dipstick135
quality136
specifications136
viscosity136 Oil change intervals, refer to
the Service and Warranty
Information Booklet/
Warranty and Service
Guide Booklet
Oil filter change187
Oil level
check135
indicator lamp20
Oil pressure, indicator
lamp20
OILSERVICE76
Onboard tool kit152
Opening and closing
from the inside38
from the outside34
Outside temperature
display78
P
Paint blemishes142
Paint, care142
Paintwork
minor repairs143
waxing143
Park Distance Control
(PDC)81
Parking aid81
Parking brake65
Parking lamps88
Parking, winter120

Everything from A to ZPDC (Park Distance
Control)81
Performance184
Pocket flashlight102
Pollen93,100
Power seat50
Power steering121
Power windows44
safety feature44
Pressure monitoring,
tires85,179
Pressure, tires27,122 Q
Quality Grades123 R
Radiator187
Radio Data System
(RDS)176
Radio reception121,176
Radio, refer also to the
separate Owner's Manual
Rain sensor71,178
RDC (Tire Pressure
Control)85,179
RDS (Radio Data
System)176
Reading lamps89
Rear backrest, folding106 Rear lamps155
Rear window
defroster72,92,100
Rear-entry assist49
Rearview mirror52
Recirculated air mode92
Reclining seat47
Refueling26
Remote control35
Removing condensation
from the windows94,99
Replacement keys32
Reporting safety defects7
Restraint system56
Reverse17,66
Roller blind, sun
protection101
Roof load capacity186
Roof-mounted luggage
rack109
Rubber parts119
S
Safety belt tensioner176
Safety belts55
height adjustment55
Safety buttons38
Safety feature44
Safety terminal, battery164 Seats47
adjusting47
electric power50
heating101
mechanical47
memory51
sitting properly58
Securing the load108
Selector lever, automatic
transmission67
Self-defrosting mirrors52
Self-diagnostics180
Service and Warranty
Information Booklet140
Service Interval Display76
Shiftlock67
Side airbags57
Side impact Head Protection
System57
Side lamps87
bulb replacement154
Sitting properly with
airbag58
Ski bag107
Skid control120
Sliding/tilt sunroof45
closing following an
electrical malfunction167
convenience operation34
Slippery roads119
Snow chains119,126 Socket105
for flashlights105
for power supplies105
for vacuum cleaner105
Spare key32
Spare tire159
Spark plugs188
Speaker104
Specifications, fuel27
Speed control75
Speed display18
Speed, average80
Speedometer18
Sports seat49
Starting assistance168
Starting
problems113,168
Starting the engine63
Steel rim127
Steering121
Steering lock63
Steering wheel52
adjusting52
Steptronic67
Stopping the vehicle64
Storage compartments102
Storage facilities102
Storing your vehicle147
Stroke184
Summer tires125,127
Sun roller blind101
Sun visors53