light BMW M3 CONVERTIBLE 2001 E46 Workshop Manual

156n
Repairing a flat tire 8 Take the hose with the pressure
gauge out and screw it onto the
valve.
Take the plug out and plug it into the
cigarette lighter socket in the
passenger compartment.
9 Reset the air pressure to 29 psi
(200 kilopascal):
>To increase the tire pressure: turn
on the M Mobility system
(position I). To check the new tire
pressure briefly turn off the device.
>To reduce the tire pressure: turn
the screw on the back of the pres-
sure gauge, this will open the air
release valve.
If the air pressure won't hold,
carry out step 10 anyway and then
repeat steps 7 through 10 again.
The use of the M Mobility system may
be ineffective if the damaged area in
the tire is larger than approx. 0.16 in
(4 mm). Please consult the nearest
BMW center if the tire cannot be
temporarily repaired with the M Mobility
system.<
10 Unscrew the hose from the valve
and stow the M Mobility system in
the luggage compartment.
After the flat tire has been fixed and you
start driving again, do not exceed a
maximum speed of 50 mph (80 km/h).
You will find corresponding instructions
for using the M Mobility system on the
device.
Replace the defective tire as soon as
possible and have the new wheel/tire
balanced. Re-initialize the Tire Pressure
Warning system (RDW), and refer to
page 81 for further information. Have
the M Mobility system refilled. Contact
your BMW center for this.

158n
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 infor-
mation.
A highly-explosive gas is gener-
ated when the battery is
charged.
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.
In order to protect the battery
case from ultraviolet radiation,
do not expose it to direct
sunlight. A discharged battery can
freeze. Store the battery in areas where
temperature remains above freezing.
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.
Wear eye protection. Do not
allow particles containing
battery acid or lead to come into
contact with your eyes, your skin, or
your clothing.
If you happen to get acid in your
eyes, rinse thoroughly for
15 minutes with clear water.
Following that, consult a physician
immediately. If your skin or clothing are
splashed by acid, rinse immediately
with plenty of soap and water. If elec-
trolyte is accidentally ingested, consult
a physician immediately.
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 elec-
tronics. 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 acci-
dent.<

172n
Rain sensor
*
Depending on the amount of moisture
on the windshield, the rain sensor
controls the operation of the windshield
wipers.
Infrared light is carried along the
surface of the windshield in an optical
conductor in such a manner that it is
reflected completely when the wind-
shield is dry. The quantity of reflected
light is measured.
If there is moisture on the glass, the
amount of light reflected is reduced
since the infrared light at the surface of
the windshield can escape. The quan-
tity of reflected light is thus a means of
gauging the amount of moisture on the
windshield.
When the system is set to the "intermit-
tent" wiper speed, the wipers react
immediately – if water is splashed onto
the windshield by vehicles traveling
ahead of you, for example. As a result,
the rain sensor makes a contribution to
driving safety and comfort.

173n
IndexDataTechnologyRepairsCar careControlsOverview
Interior rearview mirror with automatic dimming feature The interior rearview mirror with auto-
matic dimming feature reduces glare
from following traffic by adapting the
intensity of the reflected images to
correspond to levels of light registered
by the unit's sensors. The mirror reverts
to its undimmed setting as soon as the
light source disappears. One lamp
sensor is mounted on the front of the
mirror housing. This sensor, which is
directed forward, measures light inten-
sity in the area ahead of the vehicle.
The second sensor is integrated within
the mirror's glass. The electronic
control system compares the light
intensity from front and rear. The differ-
ence provides the basic parameter
used to modulate an electrical current
and induce chemical changes in a
semisolid layer incorporated in the lens.
The semisolid reacts chemically to this
electrical current, thus providing
dimming of the mirror through an infi-
nitely-variable range (electrochromic
technology).
As a result, it is no longer necessary to
dim the mirror manually, and the driver
can concentrate completely on traffic
conditions.

Everything from A to Z
187n
IndexDataTechnologyRepairsCar careControlsOverview
Car telephone96
Car wash132
Care
convertible top137
exterior133
interior134
upholstery135
wool velour135
Cargo loading100
Cassette operation, refer to
the radio Owner's Manual
Catalytic converter105
starting problems105
CBC (Cornering Brake
Control)107
warning lamp21
CD operation, refer to the
radio Owner's Manual
Cellular phone96, 112
refer also to the separate
Owner's Manual
Center armrest95
Center brake lamp151
Central locking system33
key38
Check Control76t
Checking brake fluid
level130t
Checking coolant
level129t
Checking engine oil
level127tChild restraint systems58
Child seat security60
Cigarette lighter97
Cleaning headlamps71
Cleaning windshield70
Clock76
refer to the "Radio and
Information Systems"
Owner's Manual or to the
"Onboard Computer"
Owner's Manual
Cockpit16
Code, refer also to the radio
Owner's Manual
Coin holder95
Combination switch69
Compression178
Computer77
refer to the "Onboard
Computer" Owner's
Manual
Configuring settings
car memory, key
memory55
Connecting portable vacuum
cleaner97
Consumption78
Consumption display74
Convertible top
compartment panel41
electrical defect162tfold down convertible top
compartment base41
operation45
Coolant110, 125t, 129
antifreeze110
temperature gauge74
Cooling system181
Copyright4
Cornering Brake Control
(CBC)107
warning lamp21
Cruise control71
Cruising range78
Cup holder, refer to
Beverage holder
Curb weight180
DDash panel lighting84
Dashboard16
Data
dimensions179
engine178
technical178
vehicle performance181
weights180
Data link connector for
onboard diagnosis142
Daylight driving lamps
switch84
Deep water105
Defrost position91tDefrostable rear window92
Defrosting, windows91t
Difficult steering112t
Digital clock76
Dimensions179
Dipstick127
Disarm tilt alarm
sensor43t
Disc brakes108
Displacement178
Display lighting84
Displays18
Disposal of used
batteries159t
Disposal of used engine
oil128t
Distance warning79
Diversity Antenna169
Door locks, care110
Doors
emergency lock
operation34t
keys32
manual opening and
closing34
opening and closing via
remote control35
unlocking and locking35
DOT Quality Grades116
Draft-free ventilation92
Drive belts182
Driving in winter110

Everything from A to Z
189n
IndexDataTechnologyRepairsCar careControlsOverview
Headlamp flasher69, 85
Headlamp washer
system125, 126, 181
Heated mirror52
Heated seats93
Heater and ventilation88
Heavy loads100
Height50, 179
High beam lamps69, 85
indicator lamps23
High Performance Synthetic
Oils128
High-speed engine171
Holder for beverage
cans, refer to Beverage
holder
Hood121
opening121
unlocking121
Horn17IIce warning77
Identification number,
vehicle130
Identification, tires118, 120
Ignition key32
Ignition key position66
Ignition lock66
Imprint4
Indicator lamps20tIndividual settings
car memory, key
memory55
Inflation pressures115t
INSPECTION75
Instrument cluster18
Instrument lighting84
Instruments18
Interference
cellular phone112
Interior lamps36, 86
bulb replacement151t
remote control36
Interior mirror
automatic dimming
feature53
Interior motion sensor42
disarm43t
Interior rearview mirror
automatic dimming
feature53, 173
Intermittent operation69
JJump-starting164KKey Memory55
Keys32
with remote control32
LLamp switch84
Lamps
footwell lamps86
high beam headlamps85
instrument lighting84
interior lamps86
parking lamp85
reading lamps86
Lamps and bulbs146
LAMPS ON warning84
Lashing eyes101
LATCH attachment for child
seat59
Leather care136
Length179
License plate lamp
bulb replacement151t
Lighter97
Load-securing devices101
Low beam headlamps84
lamp malfunction147t
Lower rollover protection
system64t
Luggage
compartment40, 41
capacity180
emergency release39t
enlarging41
floor mat41
floor panel41fold down convertible top
compartment base41
remote control37
Luggage compartment
lamps39
bulb replacement152t
Luggage compartment
lid39
emergency release39t
Luggage rack101
Lumbar support49
MM Engine dynamics
control83
M Mobility system153
M+S-tires119
M3 engine concept171
Maintenance75, 131
Make-up mirror53
Malfunction of ABS107
Manual convertible
top operation in case of
electrical defect162t
Manual transmission68
Manual-shift gear lever68
Master key32
Maximum speed181
Memory54
MFL (Multifunction steering
wheel)24