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137n
IndexDataTechnologyRepairsCar careControlsOverview
Repairing a flat tireUsing the M Mobility system Release the securing device of the
M Mobility system and remove the
system from the luggage compartment.
If possible, leave the foreign
object in the tire.<
Do not exceed the maximum
speed limits described below,
otherwise accidents could result.
Before you use the M Mobility system,
read the warnings and danger notices
on the device carefully.<
1 Pull sticker 5 off for maximum speed
and affix it to the steering wheel.
2 Remove the round cover and take out
hose 4. Unscrew the valve stem
cover from the defective wheel and
screw the hose to the valve.39mde105
3 Flip open the cover and pull out the
enclosed protective gloves. Take out
hose 2 with the pressure gauge and
screw it to the terminal for the sealant
container as shown in the illustration.
4 Make sure that the system has been
switched off (position 0).
Take out the plug 6 and insert it into
the cigarette lighter socket in the
passenger compartment (refer to
page 80).39mde107
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138n
Repairing a flat tire5 Make sure that the screw on the rear
of pressure gauge 3 is tightened
down. Turn on the M Mobility system
(position I, refer to illustration) and
allow three minutes to elapse to let
the sealant flow in. It does not matter
afterward what the tire's inflation
pressure is.
6 Turn the device off.
Disconnect the connector hose from
the sealant container and the tire
valve. Stow the M Mobility system in
the luggage compartment.39mde108
7 Then immediately drive at least
1.2 miles (2 km), so that the liquid
sealant distributes evenly throughout
the inside of the tire.
Do not exceed 40 mph (60 km/h), and
if possible, do not drop below
15 mph (20 km/h).
Stop at an appropriate spot.
8 Take out the hose with the pressure
gauge and screw it onto the valve.
Take out the plug and plug it into the
cigarette lighter socket in the
passenger compartment.
9 Reset the inflation pressure to 29 psi
(200 kPa):
>To increase the tire pressure: turn
on the M Mobility system
(position I). To check the current
setting for the tire pressure briefly
turn off the device.
>To reduce the tire pressure: turn
the screw on the back of the pres-
sure gauge; a valve located there
will open.
39mde109
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139n
IndexDataTechnologyRepairsCar careControlsOverview
Repairing a flat tire
If the inflation 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.
0.15 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
balanced. Re-initialize the Tire Pressure
Warning (RDW) system, refer to
page 67 for further information. Have
the M Mobility system refilled. Contact
your BMW center for this.
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140n
Battery
Battery posts, terminals and
related accessories contain lead
and lead compounds. Wash hands after
handling.<
Battery locationThe battery is located in the luggage
compartment under the floor mat and a
cover.
To make the battery accessible, lift up
or remove the floor mat, unscrew the
nuts of the cover (arrows) and remove
the cover.36mde779
Z3 d Z3
MaintenanceThe battery is completely maintenance-
free. That means that the original elec-
trolyte will normally last for the service
life of the battery under moderate
climatic conditions.SymbolsYou 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.
Please read the following infor-
mation before working with the
battery.
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.
Ensure that children keep well
away from batteries and battery
acid.
Do not allow sparks or open
flame near the battery. Do not
smoke near the battery. Avoid
sparks from electrical cables or elec-
trical equipment. Turn the key to posi-
tion 0 in the ignition lock when the
battery is disconnected or connected.
Do not short circuit the battery termi-
nals. This creates a risk of personal
injury from high-voltage sparks.
A highly-explosive gas is gener-
ated when the battery is charged.
If acid is accidentally splashed
into your eyes, rinse them thor-
oughly for 15 minutes with clear
water. Following that, consult a physi-
cian immediately. If acid splashes onto
your skin or clothing, rinse immediately
with ample clean water. If acid is acci-
dentally swallowed, consult a physi-
cian 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.
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IndexDataTechnologyRepairsCar careControlsOverview
BatteryCharge condition You 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.
>Yellow: replace the battery.
The projected service life of the
battery can only be reached if the
battery is fully-charged at all times.
Check the charge condition of the
battery frequently if the vehicle is used
primarily for driving short distances. < 36mde780
Charging the batteryCharge the battery in the vehicle only
when the engine is off. Charge the
battery by using the connectors in the
engine compartment (Connectors, refer
to jump-starting on page 144).
Before performing any work on
the electrical system, disconnect
the cable from the negative terminal. If
you do not, short circuits can create the
risk of 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. Then recharge the battery with
an appropriate battery charger.
If you intend to store your vehicle for
longer than twelve weeks: remove the
battery, charge it and store it in a cool
(but frost- and dust-free) room. Every
three months and before reinstalling the
battery, have it recharged. If it is not
recharged, it will not be serviceable.
Every time the battery is discharged,
especially over extended periods, its
service life is reduced. Refer also to
page 123.
Return used batteries to a recy-
cling point or your BMW center.
Maintain the battery in an upright posi-
tion for transport and storage. Secure
the battery against tilting when trans-
porting.<
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Battery FusesRemoval and installation
Do not disconnect the battery
cables 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 leading to the positive terminal. If
you do so, the battery safety terminal's
safety function will no longer be guaran-
teed. 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.
Unscrew the battery retaining clamp.
When installing the battery, connect the
positive terminal first, then connect the
negative terminal.
When installing a battery and
cover, be sure that they are
mounted properly. If this is not done,
the battery will not be adequately
secured in case of an accident.<
If an electrical accessory fails, switch it
off and check the fuse.
The fuse box (electrical distribution
center), which contains spare fuses,
relays and plastic tweezers, is located
on the left-hand side of the engine
compartment.
1 Press the retaining flap in and lift off
the cover.
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 ("blown"),
the metal strip will have melted and
separated. Replace the blown fuse
with a new fuse of the same ampere
rating (color code).36mde795
A listing of the fuses, their respective
ampere ratings and the equipment in
their circuits is provided on the cover of
the fuse box.
When you close the fuse box, be sure
that the cover is seated securely.
Do not attempt to repair a burned
fuse or replace it with a fuse
having a different color or amperage
rating. To do this could cause a fire in
the vehicle resulting from a circuit over-
load.<
If a fuse burns through again, have the
source of the fault checked and
corrected by a BMW center.
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IndexDataTechnologyRepairsCar careControlsOverview
Power convertible top
*
Fuel filler door
Closing manually For roadsters with power convertible
top
*, the convertible top drive unit is
located in the luggage compartment
behind the left side trim panel.
Turn the clip at the top of the trim panel
to the left or right and swing the trim
panel to the side.
Turn the T-pin a half turn to the left
(refer to the illustration).
The convertible top drive unit is disen-
gaged and the convertible top can be
operated manually. Refer to page 37.
367de285
M roadster
Please have your BMW center eliminate
the defect and reengage the drive.
Releasing manuallyM coupe: release the cover panel in the
luggage compartment at the rear right,
refer to page 136.
Pull the button at the right in the
luggage compartment sharply (arrow).
Please consult your BMW center to
have the defect corrected.36mde781
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144n
Jump-startingNever use spray starter fluids to start
the engine.
If the battery is discharged, the engine
can be started with the use of two
jumper cables and the battery of
another vehicle. Always use jumper
cables with fully insulated handles on
the terminal clamps.
Do not touch voltage-carrying
components when the engine is
running. To do so creates a risk of fatal
injury.<
Carefully comply with the following
instructions to avoid personal injury and
damage to one or both vehicles:
1 Ensure that the battery on the
support vehicle is also rated at
12 volts, and that the capacities of
the two batteries (Ah) are roughly
comparable (printed on casing).
2 Leave the discharged battery
connected to the vehicle electrical
system.
3 Make sure that there is no contact
between the bodywork of the two
vehicles. This creates the risk of
short-circuiting.
4 Start by connecting the jumper cable
from the positive terminal of the
support vehicle to the auxiliary
terminal for jump-starting located in
your BMW's engine compartment.
The cover of the auxiliary terminal for
jump-starting is indicated by a "+"
sign. Refer to the illustration. Flip the
cap forward to open.36mde793
5 Then connect the negative terminals.
First attach the cable to either the
support vehicle's negative battery
terminal "–", or to a suitable ground
on its engine or body. Then connect
the other terminal of the cable to a
ground on the engine or on the body
of the vehicle which is to be started.
This is a special nut which is provided
on the suspension strut dome of the
BMW. Refer to the arrow in the illus-
tration.
Follow the same sequence when
connecting jumper cables if you
are assisting another vehicle. If you do
not, there is a risk of personal injury
from spark generation at the battery.< 36mde794
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