ECO mode BMW M3 COUPE 2001 E46 User Guide

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic climate control 1 Air onto the windshield and onto the
side windows
2 Airflow toward the upper body
The side rotary dials allow you to
open and close the air supply
through an infinitely-variable range,
while the levers change the airflow
direction. The center rotary dial
adjusts the temperature of the air as
it flows out, see page 88
3 Ventilation for the front footwell
There are corresponding air vents in
the rear footwell as well
4 Recirculated air mode/Automatic
recirculated air control (AUC)87
5 Air supply (fan)87
6 Temperature86
7 Automatic air distribution86
8 Individual air distribution86
9 Air grill for interior temperature
sensor Ð please keep clear and
unobstructed
10 Display for temperature and air
supply86
11 To defrost windshield and side
windows87
12 Air conditioner87
13 Rear window defroster67, 88

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic climate control Air supply (fan)
By pressing the left or right half
of the button, you can vary the
air supply. By doing this, you switch off
the automatic control of the air supply.
Nevertheless, the automatic air distri-
bution remains unchanged.
When you set the lowest blower speed
by pressing the left half of the button,
all of the displays are canceled: the
blower, heating and air conditioner are
switched off, and the air supply is
stopped. You can reactivate the system
by pressing any button for the auto-
matic climate control.
Defrosting the windshield and
removing condensation from the
windows
This program quickly removes
ice and condensation from the
windshield and side windows.
Air conditioner
The air is cooled and dehumidi-
fied and Ð depending on the
temperature setting Ð rewarmed when
the air conditioner system is switched
on.
Depending on the weather, the wind-
shield may fog over briefly when the
engine is started.
Use the button to switch the air condi-
tioner off at outside temperatures
below approx. 41 7 (+5 6). This will
prevent the windows from fogging over.
If the windows fog over after switching
the air conditioner off, switch it back
on.
Condensation forms in the air
conditioner system during opera-
tion, that then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Automatic recirculated air control
(AUC)
If there are unpleasant odors or
pollutants in the outside air, you
can temporarily block the airflow from
the outside. The system then recircu-
lates the air already within the vehicle.
By repeatedly pressing the button, you
can select one of three different opera-
tion modes.
>Indicator lamps off: outside air always
flowing into the vehicle
>Left-hand indicator lamp on Ð Auto-
matic mode: the system detects
pollutants in the outside air and
responds by deactivating the outside
airflow as required. The system then
recirculates the air already within the
vehicle.
Depending on air quality require-
ments, the system automatically
switches between outside air supply
and recirculation of the air already
within the vehicle
>Right-hand indicator lamp on: the
flow of outside air is permanently
blocked. The system recirculates the
air already within the vehicle.

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Heated seats
*
Roller sun blind
** * *
The seat cushion and backrest can
be heated with the ignition key in
position 2.Heating levelsYou can call up different heating levels
by repeatedly pressing the buttons.
When the three indicator lamps are illu-
minated, the highest heating mode is
activated. One lamp indicates the
lowest heating mode. The temperature
is regulated with a thermostat in each
mode.To deactivatePress repeatedly or hold down, until all
of the indicator lamps go out.
To actuate, press the button briefly with
the ignition key in position 1.

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IndexDataTechnologyRepairsCar careControlsOverview
Antilock Brake System (ABS)In the event of a malfunction
If the ABS warning lamp does
come on, refer to page 21. The
brake system will then function
the same as on vehicles without ABS.
However, have the brake system
checked by your BMW center as soon
as possible. To prevent undetected
defects and cumulative faults from
adversely affecting the brake system,
refer any problems to your BMW center
at the earliest opportunity.
ABS warning lamp for Canadian
models.
If the brake warning lamp
comes on together with the
indicator lamps for ABS and
DSC, refer to page 21, the entire
ABS, CBC and DSC control
system has failed. Continue
driving cautiously and defen-
sively. Avoid full brake applica-
tions. This could cause the vehicle to
lose stability and you might no longer
be able to control it.
Have the system checked by your BMW
center as soon as possible.
ABS, CBC and DSC indicator
and warning lamps for Canadian
models.

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IndexDataTechnologyRepairsCar careControlsOverview
Brake system Brake fluid level
If the brake warning lamp
comes on with the parking
brake released:
The brake fluid level is too low in the
reservoir (refer to page 126).
If the brake fluid level is too low and
brake pedal travel has become notice-
ably longer, there may be a defect in
one of the brake system's hydraulic
circuits.
Brake warning lamp for Cana-
dian models.
Proceed to the nearest BMW
center. Higher brake application
pressure may be necessary under these
conditions, and brake pedal travel may
be significantly longer. Please
remember to adapt your driving style
accordingly.<
Brake pads
If the warning lamp for the brake
pads lights up: only the
minimum pad thickness still
remains on the brake pads. Proceed to
the nearest BMW center as soon as
possible to have the pads replaced.
For your own safety: use only
brake pads which BMW has
approved for your specific vehicle
model. BMW cannot evaluate non-
approved brake pads to determine if
they are suited for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<

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Information for your safetyThe factory-approved radial tires are
matched to the vehicle and have been
selected to provide optimum safety and
driving comfort on your vehicle.
It is not merely the tire's service life, but
also driving comfort and Ð above all else
Ð driving safety that depend on the
condition of the tires and the mainte-
nance of the specified tire pressure.
Incorrect inflation pressure is a frequent
cause of tire damage. It also signifi-
cantly influences the roadholding ability
of your BMW.
Check tire inflation pressures on a
regular basis (refer to page 27), at
least every two weeks and before
beginning a longer trip. If this is not
done, incorrect tire pressures can
cause driving instability and tire
damage, ultimately resulting in acci-
dents.<
Tire tread Ð Tire damageInspect your tires frequently for tread
wear, signs of damage and for foreign
objects lodged in the tread. Check the
tread depth.
Tread depth should not be allowed to
go below 0.12 in (3 mm), even though
the legally specified minimum tread
depth is only 0.063 in (1.6 mm). At a
tread depth of 0.063 in (1.6 mm), tread
depth indicators (arrow) in the tread-
groove base will indicate that the legally
permissible wear limit has been
reached. Below 0.12 in (3 mm) tread
depth, there is an increased risk of
aquaplaning, even at relatively
moderate speeds and with only small
amounts of water on the road.
Do not drive on a deflated (flat)
tire. A flat tire greatly impairs
steering and braking response, and can
lead to complete loss of control over
the vehicle.
Avoid overloading the vehicle so that
the permitted load on the tires is not
exceeded. Overloading can lead to
overheating and increases the rate at
which damage develops inside the
tires. You could have a blowout as a
result.
Unusual vibrations encountered during
normal vehicle operation can indicate
tire failure or some other vehicle defect,
This is also true for irregularities in the
vehicle's handling characteristics, such
as a pronounced tendency to pull to the
left or right. Should this occur, respond
by immediately reducing your speed.
Proceed carefully to the nearest BMW
center or professional tire center, or
have the vehicle towed in to have it and
its tires inspected.
Tire damage (up to and including blow-
outs) can endanger the lives of both the
vehicle occupants and other road
users.<
Tire inflation pressure Tire condition

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The BMW Maintenance System has
been designed as a reliable means of
providing maximum driving and operat-
ing 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 DisplayAdvanced technology is employed to
calculate the optimal maintenance
intervals. These are then indicated in
the Service Interval Display. While
conventional systems rely on distance
traveled alone to determine when
service is due, the BMW Maintenance
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) of
short-distance driving are not equal to
the same 62,000 miles (100,000 km) of
long-distance travel. In response to this
fact, the BMW Maintenance System
monitors operating conditions as the
basis for determining the service inter-
vals for your vehicle, it 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 drive fewer than
6,000 miles (10,000 km) per year
should, nevertheless have their oil
changed every 2 years at the most, no
matter what the Service Interval Display
indicates, since engine oil ages over
time, regardless of loading. 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 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 "up to date"
on the latest maintenance work and
repair techniques and equipped with
the required special tools. In addition,
checking 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 (US models), or in
the Warranty and Service Guide Book-
let (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

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OBD connector The data link connector for onboard
diagnostics is located on the left-hand
side of the driver's side, on the under-
side of the instrument panel and under
a cover panel. The cover is marked with
the letters "OBD".
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 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
nearest BMW center immediately.
Severe engine misfire 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.<

IndexDataTechnologyRepairsCar careControlsOverview
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BatteryCharge conditionYou can read the charge condition of
the battery with the "Magic Eye
*" (a
hydrometer):
>Green: adequate charge
>Black: not charged adequately. The
battery must be recharged. Please
contact your BMW center for addi-
tional information
>Yellow: replace the battery.
The projected service life of the
battery can only be reached if the
battery is fully-charged at all times. If
the vehicle is primarily used for stop-
and-go traffic, be sure to check the
charge state often.<
MaintenanceThe battery is completely maintenance-
free. That means that the original
battery acid will normally last for the
service life of the battery under
moderate climate conditions.
For all questions that regard the
battery, please consult your BMW
center. Since the battery is absolutely
maintenance-free, the following infor-
mation is for your use only.<
SymbolsYou will find the following symbols on
your car battery. For your safety, please
be cautious whenever you work with or
near the battery.
Before handling the battery,
please read the following
information.
A highly-explosive gas is
generated when the battery is
charged.
Never allow sparks or open
flame near the battery. Do not
smoke in the vicinity of the
battery. Avoid creating sparks when
working around electrical cables or
equipment. Turn the key to position 0 in
the ignition when disconnecting or
connecting the battery. Don't short-
circuit the battery terminal. If you do so,
you could be injured by electrical
sparks.
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.

Everything from A to Z
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IndexDataTechnologyRepairsCar careControlsOverview
JJump-starting154KKey30
with remote control30
Key Memory52LLamps
fog lamps82
footwell lamps82
interior lamps82
reading lamps83
LAMPS ON warning81
Lashing eyes98
LATCH attachment of the
child seat60
Leather care132
Length167
License plate lamp, bulb
replacement143t
Light switch81
Light-alloy wheels116
Lighter93
Load-securing devices98
Louvers84
Low beam headlamps81
bulb replacement139tLuggage compartment37
capacity168
emergency release37t
floor mat39
floor panel39
lid37
lighting37
locking separately37
remote control34
Luggage compartment
lamps, bulb
replacement144t
Luggage rack98
Lumbar support48
MM Engine dynamics
control80
M Mobility system145
components146
using146
Maintenance71, 127t
Make-up mirror50
Malfunction displays72t
Manual transmission64
Manual-shift gear lever64
Master key30
Mechanical seat45
Memory51
MFL (Multifunction steering
wheel)23Microfilter/Activated-
charcoal filter88
changing152t
Mirror memory51
Mirrors49
automatic curb
monitor49
with automatic dimming
feature161
Mobile phone110
Modifications,
technical6, 134
Motion sensor, interior40
Multifunction steering wheel
(MFL)23
M+S radial tires115
NNavigation system, refer to
the separate Owner's
Manual
Neckrest46OOBD interface socket135
Obstruction protection42
Odometer69
Oil
additives123
capacity169
consumption123Oil change intervals, see the
Service and Warranty
Information Booklet (US
models)/Warranty and
Service Guide Booklet
(Canadian models)
Oil filter change169
Oil level, indicator lamp21
Oil pressure, indicator
lamp20
OILSERVICE71
Onboard computer, refer to
computer72
Onboard monitor, refer to
the separate Owner's
Manual
Onboard tool kit138t
Opening and closing
from inside36
via remote control33
via the door lock32
Outside temperature
display73
PPaint blemishes129
Paintwork
minor repairs130
waxing130
Paint, care129
Panic mode35