change wheel BMW M3 CONVERTIBLE 2008 E93 Owner's Manual

Reference
At a glance
Controls
Driving tips
Mobility
25
Locking or unlocking separately
The switch is located in the glove compartment.
1Locking the luggage compartment lid
2Unlocking the luggage compartment lid
Locking separately
Push the switch in the direction of arrow 1.
The luggage compartment lid is locked and
cannot be unlocked using the central locking
system.
If you give the remote control without the inte-
grated key to someone else while the glove
compartment is locked, the luggage compart-
ment lid cannot be opened. This is an advan-
tage when valet parking, for example. Locking
the glove compartment, refer to page87.
Unlocking separately
Push the switch in the direction of arrow 2.
Emergency release
Pull the lever in the cargo bay. The luggage
compartment lid is unlocked.
Closing
The handle recesses on the interior trim of the
luggage compartment lid make it easier to pull
down.Make sure that the closing path of the
luggage compartment lid is clear, other-
wise injuries may result.<
Coupe
Convertible
To close the luggage compartment lid,
press it down lightly. The lid is closed
automatically.<
Alarm system*
The concept
The vehicle alarm system responds:
>When a door, the hood or the luggage com-
partment lid is opened
>To movements inside the vehicle: Interior
motion sensor, refer to page26
>When the car's inclination changes, for
instance if an attempt is made to jack it up
and steal the wheels or to raise it prior to
towing away
>When there is an interruption in the power
supply from the battery
The alarm system signals unauthorized entry
attempts for a short time by means of:

Reference
At a glance
Controls
Driving tips
Mobility
49
Reverse gear
Select this only when the vehicle is stationary.
When the gearshift lever is pressed to the left, a
slight resistance has to be overcome.
M dual clutch transmission
with Drivelogic*
The concept
The M dual clutch transmission with Drivelogic
is an automated manual transmission with two
clutches and a partial transmission in which an
electro-hydraulic system takes over clutch
action and shifting.
With the M dual clutch transmission, gears are
changed without interruption of the traction
force.
The M dual clutch transmission is operated
using the selector lever and two shift paddles
on the steering wheel.
The transmission offers you the following func-
tions:
>Selection between manual and automatic
operation: sequential mode or drive mode
>Selection between different drive pro-
grams, Drivelogic, refer to page52
>Shift Lights, refer to page52
>Automatic downshifting and protection
against selecting the wrong gear even in
sequential mode
>Launch Control, refer to page53
>Automatic throttle blip
>Low Speed Assistant
System limitations
The M dual clutch transmission is equipped
with an overheating protection system that pro-
tects the clutch against extreme loads.
The indicator lamp lights up yellow
when the transmission becomes too
warm. Avoid high engine loads and
driving off frequently. When the transmission is
overheated, the indicator lamp lights up red and
the fuel supply to the engine is cut off. You can-not continue driving until the transmission has
cooled down.
Avoid driving off frequently with high accelera-
tion and do not hold the vehicle on inclines by
pressing lightly on the accelerator while letting
the clutch slip, as this may cause the transmis-
sion to overheat.
In traffic congestion or at very low speeds, use
the Low Speed Assistant, refer to the informa-
tion below.
Low Speed Assistant
The Low Speed Assistant supports you when
driving at very low speeds: the vehicle moves at
walking speed and automatically controls the
engine speed. You can also use the Low Speed
Assistant when rocking the vehicle out of deep
snow. To do so, shift between reverse gear and
the forward position without pressing the brake.
Activating
1.Engage a drive position.
2.Briefly tap the accelerator.
The vehicle rolls at the minimum speed. Do not
press the brake continuously as this may cause
the transmission to overheat.
Deactivating
Brake the vehicle to a stop to deactivate the
Low Speed Assistant.
Selector lever positions
>R: reverse gear

Technology for driving comfort and safety
68
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page99.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Brake assist
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressure on the brake for the
duration of the full braking application.
Dynamic Stability Control DSC
DSC optimizes driving stability and traction. In
addition, the system recognizes unstable driv-
ing situations such as understeering and over-
steering, and helps keep the vehicle on a safe
course within physical limits by reducing engine
power and applying the brakes on individual
wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Therefore, do not reduce the additional
safety margin again by taking risks, as this could
result in an accident.<
Deactivating DSC
Press the DSC OFF button for longer than
approx. 1 second; the indicator lamps for DSC
in the instrument cluster light up. Stabilizing
and drive-output promoting actions are no
longer executed.
You may find it useful to briefly deactivate DSC
under the following exceptional circumstances:
>When driving uphill on snow-covered roads,
in slush or on unplowed, snow-covered
roads
>When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground
>When driving with snow chains
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the DSC OFF button again; the indicator
lamps in the instrument cluster go out.
For better control
If the indicator lamp flashes:
DSC is regulating the drive and brak-
ing forces.
If the indicator lamps are on:
DSC is deactivated.
Electronic Damper Control
EDC*
The concept
Whenever there is a change in any significant
parameter such as road surface quality or in an

Reference
At a glance
Controls
Driving tips
Mobility
69
operating condition such as steering, braking,
etc., the damping automatically adjusts to the
new conditions in fractions of a second.
You can select between three programs.
"Comfort" program
Select the "Comfort" program if you want com-
fort-oriented control of the shock absorbers.
"Normal" program
The "Normal" program offers control that is bal-
anced between comfort and sportiness.
"Sport" program
Select the "Sport" program if you want consis-
tently sporty control of the shock absorbers.
Selecting a program
Press the EDC button repeatedly:
>"Comfort": LED off:
>"Normal": one LED lights up.
>"Sport": both LEDs light up.
The selected program is stored for the remote
control currently in use and is activated the next
time the engine is started.
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Drive off without delay after
releasing the brake. Otherwise, the drive-off
assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards.<
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor detects pressure loss in a
tire by comparing the rotating speeds of the
individual tires while moving.
In the event of pressure loss, the rolling circum-
ference changes and, thus, the rotating speed
of the affected wheel. This change is detected
and is reported as a flat tire.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be initialized for the cor-
rect tire inflation pressure.
The system must be reinitialized each
time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed.<
System limitations
The Flat Tire Monitor is unable to warn
the driver of sudden, severe tire damage
caused by external factors, nor can it identify
the gradual loss of pressure that will inevitably
occur in all four tires over a lengthy period of
time.<
In the following situations, the system could be
delayed or malfunction:
>System has not been initialized
>Driving on snowy or slippery road surface
>Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration
>Snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.

Technology for driving comfort and safety
70 When driving resumes, the initialization is con-
tinued automatically.
Do not initialize the system while snow chains
are attached.<
1.Start the engine, but do not start driving.
2.Press the button for approx. 4 seconds until
the warning lamp in the instrument cluster
lights up yellow. Warning lamp, refer to Indi-
cation of a flat tire on page70.
3.Start to drive.
Initialization is completed while the car is
moving, without any feedback.
Indication of a flat tire
The warning lamps come on in yellow
and red. In addition, an acoustic sig-
nal sounds. There is a flat tire or sub-
stantial loss of tire pressure.
1.Reduce your speed and carefully stop the
car. Avoid sudden braking and steering
maneuvers.
2.Identify the damaged tire. To do so, check
the tire pressure using the M Mobility Sys-
tem, refer to Producing the tire inflation
pressure on page132.
3.Repair the flat tire with the M Mobility Sys-
tem, refer to page132.
Malfunction
The warning lamps come on in yel-
low. The Flat Tire Monitor has a mal-
function or has failed. Have the sys-
tem checked as soon as possible.
Tire Pressure Monitor TPM*
The concept
TPM checks the inflation pressures of the four
mounted tires. The system notifies you if there
is a significant loss of pressure in one or more
tires.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be reset while all tire infla-
tion pressures are correct.
Always use wheels with TPM electronics. Oth-
erwise, the system may malfunction.
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
System limitations
TPM cannot warn you in advance of sud-
den severe tire damage caused by out-
side influences.<
The system does not work correctly if it has not
been reset; for example, a flat tire may be indi-
cated even though the tire inflation pressures
are correct.
The system is inactive and cannot indicate a flat
tire if a wheel without TPM electronics has been
mounted, or if TPM is temporarily malfunction-
ing due to other systems or devices using the
same radio frequency.
Resetting the system
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
1.Start the engine, but do not start driving.
2.Press the button for approx. 4 seconds until
the warning lamp in the instrument cluster
lights up yellow. Warning lamp, refer to

Reference
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Controls
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Mobility
71
Message for low tire inflation pressure on
page71.
3.Start to drive.
After driving a few minutes, the set inflation
pressures in the tires are accepted as the
target values to be monitored. The system
reset is completed during your drive, and
can be interrupted at any time. When driving
resumes, the reset is continued automati-
cally. The indicator lamp goes out after the
system reset is completed.
Message for low tire inflation pressure
The warning lamps come on in yellow
and red. In addition, a signal sounds.
There is a flat tire or substantial loss
of tire pressure.
1.Reduce your speed and carefully stop the
car. Avoid sudden braking and steering
maneuvers.
2.Identify the damaged tire or tires. To do so,
check the tire pressure using the M Mobility
System, refer to Producing the tire inflation
pressure on page132.
If it is not possible to make an identifi-
cation, contact your BMW center.<
3.Repair the flat tire with the M Mobility Sys-
tem, refer to page131.
Have the tire replaced by a BMW center or a
workshop that is informed in the handling of
TPM and that works according to BMW repair
procedures with correspondingly trained per-
sonnel.
Malfunction
The small warning lamp flashes in
yellow and then lights up continu-
ously; the larger warning lamp comes
on in yellow. No punctures can be
detected.
This type of message is shown in the following
situations:
>If there is a malfunction
Have the system checked.
>If a wheel without TPM electronics has
been mounted
>If TPM is temporarily malfunctioning due to
other systems or devices using the same
radio frequency.
Message for unsuccessful system
reset
The warning lamp lights up yellow.
The system is not reset after a tire
has been changed, for example.
Check the tire inflation pressure and reset the
system, refer to page70.
Declaration according to NHTSA/
FMVSS 138
Tire Pressure Monitoring Systems
Each tire should be checked monthly when cold
and inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. If
your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire infla-
tion pressure label, you should determine the
proper tire inflation pressure for those tires. As
an added safety feature, your vehicle has been
equipped with a tire pressure monitoring sys-
tem, TPMS, that illuminates a low tire pressure
telltale when one or more of your tires are signif-
icantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, you should
stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving
on a significantly underinflated tire causes the
tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and
tire tread life, and may affect the vehicle’s han-

Reference
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Controls
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the event of side impact. The relevant side air-
bag supports the side upper body area. The
head air bag supports the head.
The airbags have been designed to not be trig-
gered in every collision situation, e.g. not in
minor accidents or rear-end collisions.
Do not apply adhesive materials to the
cover panels of the airbags, cover them or
modify them in any other way. Do not attach
seat covers, cushions or other objects not spe-
cifically approved for seats with integral side air-
bags to the front seats. Do not hang items of
clothing such as coats or jackets over the back-
rests. Do not attempt to remove the airbag
retention system from the vehicle. Do not mod-
ify the individual components of the system or
its wiring in any way. This includes the uphol-
stered covers on the steering wheel, instrument
panel, seats and roof posts, as well as the sides
of the roof lining. Do not attempt to remove or
dismantle the steering wheel.
Do not touch the individual components imme-
diately after the system has been triggered,
because there is a danger of burns.
In the event of malfunctions, deactivation or
triggering of the airbag restraint system, have
the testing, repair, removal and disposal of air-
bag generators executed only by a BMW center
or a workshop that works according to repair
procedures of BMW with correspondingly
trained personnel and that has the required
explosives licenses. Unprofessional attempts to
work on the system could lead to failure in an
emergency or to undesired airbag activation,
either of which could result in personal injury.<
Warning notices and information about the air-
bags can also be found on the sun visors.
Automatic deactivation of the front
passenger airbags
An analysis of the impression in the front pas-
senger seat cushion determines whether and
how the seat is occupied. The front and side air-
bags for the front passenger are activated or
deactivated by the system accordingly.
The indicator lamp above the interior
rearview mirror shows the current status of the front passenger airbags, deactivated or
activated, refer to Status of front passenger air-
bags below.<
Before transporting a child on the front
passenger seat, read the safety precau-
tions and handling instructions under Trans-
porting children safely, refer to page44.
The front and side airbags can also be deacti-
vated by adolescents and adults sitting in cer-
tain positions; the indicator lamp for the front
passenger airbags comes on. In such cases, the
passenger should change his or her sitting
position so that the front passenger airbags are
activated and the indicator lamp goes out. If the
desired airbag status cannot be achieved by
changing the sitting position, transport the rele-
vant passenger on a rear seat. Do not attach
seat covers, seat cushion padding, ball mats or
other items to the front passenger seat unless
they are specifically recommended by BMW.
Do not place any items under the seat which
could press against the seat from below. Other-
wise a correct analysis of the seat cushion is not
ensured.<
Status of front passenger airbags
The indicator lamp for the front passenger air-
bags shows the functional status of the front
passenger's front and side airbags in accor-
dance with whether and how the front passen-
ger seat is occupied. The indicator lamp shows
whether the front passenger airbags are acti-
vated or deactivated.
>The indicator lamp lights up when a child in
a specially designated child-restraint sys-
tem is detected, as intended, on the seat.
The front and side airbags for the front pas-
senger are not activated.

Reference
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Ventilation
1Use the knurled wheels to smoothly open
and close the air vents
2Use the lever to change the direction of the
airflow
3Knurled wheel for more or less cool air from
the vents for the upper body area
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air in your direction, for instance if it has become
too hot in the car.
Draft-free ventilation
Set the vent outlets so that the air flows past
you and not straight at you.
Ventilation in the rear
1Use the knurled wheel to adjust the temper-
ature
>Turn toward blue: colder
>Turn toward red: warmer
2Use the knurled wheel to smoothly open
and close the air vents
3Use the lever to change the direction of the
airflow
Microfilter/activated-charcoal filter
The microfilter traps dust and pollen in the
incoming air. The activated-charcoal filter pro-
vides additional protection by filtering gaseous
pollutants from the outside air. Your BMW cen-
ter replaces this combined filter during routine
maintenance.

Reference
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Controls
Driving tips
Mobility
129
3.Push the wire bracket out of the anchor
towards the right and fold it up.
4.Disconnect the plug, change the bulb and
reconnect the plug.
5.Insert the bulb.
6.Fold the wire bracket down and engage it.
7.Reattach the cover.
Turn signals, front
PY24W Silver Vision bulb, 24 watts
The turn signal bulb can be changed via a cover
in the wheel arch.
1.Turn the respective wheel inwards.
2.Using a coin, turn both locks of the cover all
the way to the left, arrows 1, and remove the
cover.
3.Turn the bulb holder to the left, arrow2, and
take it out.
4.Turn the bulb socket in the bulb holder to
the right for removal and replacement.
5.Insert the bulb holder and lock it by turning
it to the right.
6.Attach the cover by positioning the bottom
edge first and then turning both locks all the
way to the right.
Tail lamps
>Turn signal:
PY21W bulb, 21 watts
>Brake lamp in the luggage compartment lid:
H21W bulb, 21 watts
>Other lamps:
W16W bulb, 16 watts
The tail lamps are divided in two parts. One part
is in the luggage compartment lid, the other is in
the fender.
1Turn signal
2Roadside parking lamp/tail lamp, LED
3Backup lamp
4Brake lamp, consisting of two individual
bulbs
5Brake Force Display
6Roadside parking lamp/tail lamp, LED
If the bulbs 2 and 6 malfunction, please contact
your BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.
Fender-mounted lamps
Coupe
1.Left-hand side: use a screwdriver to pry off
the cover in the cargo bay and remove the
cover.
Right-hand side: remove the cover from the
right-hand side panel of the cargo bay.
2.Loosen the bulb holder at the clip, see
arrow, and pull out.

Reference
At a glance
Controls
Driving tips
Mobility
157
Belt hand-over41
Belts, refer to Safety belts40
Belt tensioner, refer to Safety
belts40
Beverage holders, refer to
Cup holders89
Blinds, refer to Roller sun
blinds87
Blower, refer to Air flow
rate81
Bluetooth, refer to separate
Owner's Manual
BMW
– car shampoo125
BMW Homepage4
BMW Maintenance
System121
BMW webpage4
Bottle holders, refer to Cup
holders89
Brake assist68
Brake fluid, refer to Service
requirements63
Brake Force Display72
– bulb change130
Brake lamps
– replacing bulb129
– two-stage72
Brake pads98
– breaking in98
Brake rotors99
– brakes98
– breaking in98
Brakes
– ABS68
– BMW Maintenance
System121
– breaking in98
– parking brake48
– service requirements63
Brakes, refer to Braking
safely99
Brake system98
– BMW Maintenance
System121
– breaking in98
– disc brakes99
Breakdown services, refer to
Roadside Assistance135Breaking in the clutch98
Breaking in the differential,
refer to Engine and
differential98
Break-in period98
Bulb changing, refer to Lamps
and bulbs127
Button for starting the engine,
refer to Start/stop button46
Buttons on the steering
wheel11
C
California Proposition 65
warning6
Can holders, refer to Cup
holders89
Capacities155
Capacity of the cargo bay155
Car battery, refer to Vehicle
battery133
Car care, refer to Care123
Care123
– automatic car washes123
– care products123
– carpets125
– CD/DVD drives126
– chrome parts124
– displays125
– exterior123
– fine wood parts125
– headlamps124
– high-pressure washer123
– interior125
– leather125
– light-alloy wheels125
– paintwork124
– plastic parts125
– retractable hardtop124
– rubber seals124
– safety belts125
– sensors and cameras125
– upholstery and cloth
trim125
– washing the car
manually124
– windows124
– wiper blades124Cargo, securing101
Cargo bay
– capacity155
– convenient access27
– folding up the floor panel93
– lamp, refer to Interior
lamps79
– opening from inside24
– opening from outside24
Cargo loading
– securing cargo101
– stowing cargo101
– vehicle100
Car jack
– jacking points133
Car key, refer to Remote
control18
Car phone
– installation location, refer to
Center armrest88
– refer to separate Owner's
Manual
Car shampoo125
Car wash
– before driving into48
Catalytic converter, refer to
Hot exhaust system98
CBS Condition Based
Service121
Center armrest88
Center brake lamp
– replacing bulb131
Center console, refer to
Around the center
console14
Central locking
– from inside23
– from outside19
Central locking system19
– convenient access27
– hotel function25
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs127
Changing wheels133
Chassis number, refer to
Engine compartment117
Check Control65