2021 BMW 8 SERIES CONVERTIBLE Owners Manual

4.Insert
the
plug
into
the
socket
in
the
vehicleinterior.5.Switch
on
the
compressor
with
standby
stateor
drive-ready
state
switched
on.
If
the
tyre
inflation
pressure
of
at
least
2
bar
is not
reached,
contact
a
Service
Partner
of
the
manufacturer
or
a
qualified
Service
Partner
or
a
specialist
workshop.
If
the
tyre
inflation
pressure
of
at
least
2
bar
is
reached,
see
Minimum
tyre
inflation
pressure
is
reached.6.Unscrew
the
connecting
hose
of
the
comj
pressor
from
the
tyre
valve.7.Unplug
the
connector
from
the
socket
in
the vehicle
interior.8.Store
Mobility
System
in
the
vehicle.
Minimum
tyre
inflation
pressure
is
reached
1.Unscrew
the
connecting
hose
of
the
comj
pressor
from
the
tyre
valve.2.Unplug
the
connector
from
the
socket
in
the vehicle
interior.3.Store
Mobility
System
in
the
vehicle.4.Immediately
drive
for
approximately
10
km/5
mi
to
evenly
distribute
the
sealing
compound
in
the
tyre.
Do
not
exceed
a
speed
of
80
km/h/50
mph. If
possible,
do
not
drive
slower
than
20
km/h/12
mph.Adjusting1.Stop
in
a
suitable
area.2.Screw
the
connecting
hose
of
the
compresj sor
directly
onto
the
tyre
valve.3.Insert
the
plug
into
the
socket
in
the
vehicleinterior.4.Correct
tyre
inflation
pressure
to
at
least2.0
bar:'xTo
increase
the
tyre
inflation
pressure:switch
on
the
compressor
with
standby
state
or
drive-ready
state
switched
on.'xTo
reduce
tyre
inflation
pressure:
press
the
button
on
the
compressor.5.Unscrew
the
connecting
hose
of
the
comj
pressor
from
the
tyre
valve.6.Unplug
the
connector
from
the
socket
in
the vehicle
interior.7.Store
Mobility
System
in
the
vehicle.
Resuming
a
journey
Do
not
exceed
maximum
permitted
speed
of
80
km/h,
50
mph.
Reinitialise
the
runflat
indicator
RPA.
Reset
the
Tyre
Pressure
Monitor.
Seite
345Wheels
and
tyresMOBILITY345
Online
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for
Part
no.
01405A1EDD7
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Have
the
punctured
tyre
and
the
sealant
conj
tainer
of
the
Mobility
System
replaced
as
soon
as possible.
For
further
information:'xRunflat
indicator
RPA,
see
page
353.'xTyre
Pressure
Monitor,
see
page
347.
Snow
chains
Safety
notes
WARNING
If
snow
chains
are
fitted
to
unsuitable
tyres,
the
snow
chains
can
come
into
contact
with
parts of
the
vehicle.
There
is
a
risk
of
accident
or
majterial
damage.
Only
fit
snow
chains
on
tyreswhich
have
been
approved
by
the
manufactureras
being
suitable
for
snow
chains.
WARNING
Insufficiently
tensioned
snow
chains
can
damj age
tyres
and
vehicle
components.
There
is
arisk
of
accident
or
material
damage.
Ensure
that
snow
chains
are
always
adequately
tensioned. Re-tension
them
if
necessary
in
accordance
with
the
snow
chain
manufacturer's
instrucj
tions.
Fine-link
snow
chains
The
vehicle
manufacturer
recommends
using
fine-link
snow
chains.
Certain
fine-link
snow chains
have
been
tested,
found
safe
for
use
in
traffic
and
rated
as
suitable
by
the
manufacturer
of
the
vehicle.
Information
regarding
suitable
snow
chains
is
available
from
a
Service
Partner
of
the
manufacj turer
or
another
qualified
Service
Partner
or
a
specialist
workshop.
Use
Snow
chains
may
only
be
used
in
pairs
on
the rear
wheels
with
tyres
of
the
following
sizes:'x245/45
R18.'x245/40
R19.
Observe
the
snow
chain
manufacturer's
instrucj
tions.
Do
not
initialise
the
runflat
indicator
RPA
with
snow
chains
fitted,
as
it
may
give
incorrect
readj ings.
Do
not
reset
the
Tyre
Pressure
Monitor
with snow
chains
fitted,
as
it
may
give
incorrect
readjings.
When
driving
with
snow
chains
fitted,
activate
Dynamic
Traction
Control
DTC
briefly
as
rej quired
in
order
to
optimise
traction.
Maximum
speed
with
snow
chains
When
snow
chains
are
fitted,
do
not
exceed 50
km/h,
30
mph.
Rear-wheel
steering
with
snow
chains
GeneralTo
ensure
that
wheels
can
move
as
required
when
using
snow
chains,
the
rear-wheel
steering function
of
the
Integral
Active
Steering
must
beswitched
off
when
snow
chains
are
fitted.
Safety
note
WARNING
If
the
rear-wheel
steering
is
activated
while snow
chains
are
fitted,
contact
between
the snow
chains
and
bodywork
can
occur.
There
isa
risk
of
accident
or
material
damage.
Switchthe
rear-wheel
steering
off
when
snow
chainsare
fitted.
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346MOBILITYWheels
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no.
01405A1EDD7
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Switching
off
the
rear-wheel
steering
The
rear-wheel
steering
is
switched
off
by
sejlecting
the
'snow
chains
fitted'
setting.1.CAR2.Settings3.General
settings4.Snow
chains5.Snow
chains
fitted
The
rear-wheel
steering
is
switched
on
again
auj
tomatically
when
the
permitted
maximum
speed
for
snow
chains
of
50
km/h,
30
mph,
is
reached.
Tyre
Pressure
Monitor
Principle
The
system
monitors
the
tyre
inflation
pressure in
the
four
tyres
installed
on
the
vehicle.
The
sysj
tem
warns
if
the
tyre
inflation
pressure
in
one
or
more
tyres
has
dropped.
General Sensors
in
the
tyre
valves
measure
the
tyre
inflajtion
pressure
and
tyre
temperature.
With
the
tyre
settings
in
iDrive,
the
system
can
display
the
predefined
nominal
pressures
autoj matically
and
compare
them
with
the
current
tyreinflation
pressures.
If
the
vehicle
is
fitted
with
tyres
which
are
not
lisj
ted
in
the
tyre
inflation
pressure
information
on
the
vehicle,
for
example
tyres
with
special
approj val,
the
system
must
be
actively
reset.
The
curj
rent
tyre
inflation
pressures
are
then
accepted
as the
specified
values.
When
operating
the
system,
please
also
comply
with
the
information
and
notes
in
the
chapter
on
tyre
inflation
pressure.
For
further
information:
Tyre
inflation
pressure,
see
page
336.
Safety
note
WARNING
The
display
showing
the
specified
tyre
inflation
pressures
does
not
replace
the
tyre
inflation
pressure
information
on
the
vehicle.
If
incorrect
data
has
been
entered
into
the
tyre
settings,
the
specified
tyre
inflation
pressures
will
also
be
incorrect.
As
a
result,
reliable
signalling
of
a
loss
of
tyre
inflation
pressure
can
no
longer
be
guarj
anteed.
There
is
a
risk
of
injury
and
material
damage.
Make
sure
that
the
tyre
sizes
of
the
fitted
tyres
are
displayed
correctly
and
that
they
match
the
specifications
on
the
tyres
and
in
the
tyre
inflation
pressure
information.
Operating
requirements
The
following
requirements
must
be
met
for
thesystem,
otherwise
reliable
signalling
of
a
loss
of
tyre
inflation
pressure
is
not
ensured:
'xAfter
every
tyre
or
wheel
change,
the
correct specifications
for
the
fitted
tyres
must
be
enjtered
in
the
tyre
settings.'xThe
Tyre
Pressure
Monitor
only
becomes
acj
tive
after
a
journey
of
several
minutes:'xAfter
changing
a
tyre
or
wheel.'xAfter
a
reset,
in
the
case
of
tyres
with
spej cial
approval.'xAfter
changing
the
tyre
setting.'xIn
the
case
of
tyres
with
special
approval:'xAfter
every
tyre
or
wheel
change,
a
resetmust
be
carried
out
when
the
tyre
inflationpressures
are
correct.'xA
reset
must
be
carried
out
after
the
tyre
inflation
pressure
has
been
adjusted
to
a
new
value.'xWheels
with
wheel
electronics.Seite
347Wheels
and
tyresMOBILITY347
Online
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for
Part
no.
01405A1EDD7
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Tyre
settingsGeneral
The
tyre
sizes
of
the
fitted
tyres
can
be
found
in
the
tyre
inflation
pressure
information
on
the
vej hicle
or
directly
on
the
tyres.
The
tyre
data
does
not
have
to
be
re-entered
if the
tyre
inflation
pressure
is
corrected.
For
summer
and
winter
tyres,
the
tyre
data
last
entered
for
each
type
is
saved.
This
means
that the
settings
can
be
retrieved
again
after
a
tyre
orwheel
change.
Adjusting
the
settings1.CAR2.Vehicle
status3.

Tyre
Pressure
Monitor4.Tyre
settings5.Tyre
selection6.Manual7.Tyre
type'xSummer'xWinter/all-season8.Select
the
type
of
tyre
mounted
on
the
rear axle.
In
the
case
of
tyres
with
special
approval:
Other
tyres.
See
the
Performing
a
reset
section
for
how
to
proceed.9.Select
the
load
status
of
the
vehicle
once
tyre
size
has
been
selected.10.Save
tyre
settings
The
measurement
of
the
current
tyre
inflation
pressure
is
started.
The
progress
of
the
measj
urement
is
shown.
Status
display
Current
status
The
status
of
the
system,
for
example
whether the
system
is
active,
can
be
shown
on
the
Conjtrol
Display.1.CAR2.Vehicle
status3.

Tyre
Pressure
Monitor
The
current
status
is
displayed.
Current
tyre
inflation
pressure The
current
tyre
inflation
pressure
is
displayedfor
each
tyre.
The
current
tyre
inflation
pressures
can
vary
dej pending
on
vehicle
operation
or
outside
temperj ature.
Current
tyre
temperature Depending
on
the
model,
the
current
tyre
temjperatures
are
shown.
The
current
tyre
temperatures
can
change
as
a
result
of
vehicle
operation
or
the
outside
temperj ature.
Specified
pressure The
specified
pressure
for
the
tyres
on
the
front
and
rear
axle
is
displayed.
The
calculated
pressure
takes
account
of
the temperature
effects
caused
by
vehicle
operation
and
the
outside
temperature.
The
appropriate specified
pressure
is
always
displayed
irrespecj
tive
of
the
weather
conditions,
tyre
temperatures
and
length
of
journey.
The
displayed
specified
pressure
may
vary
and
differ
from
the
value
stated
in
the
tyre
inflation
pressure
information
on
the
door
pillar
of
the
driver's
door.
The
tyre
inflation
pressure
can
thus
be
corrected
to
the
value
of
the
displayed
specij
fied
pressures.
The
specified
pressure
is
adjusted
immediately
if
the
load
status
is
changed
in
the
tyre
settings.
Seite
348MOBILITYWheels
and
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for
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01405A1EDD7
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Tyre
statusesGeneralThe
status
of
the
system
and
tyres
is
indicatedby
the
wheel
colour
and
a
message
on
the
Conjtrol
Display.
If
applicable,
existing
messages
are
not
deleted
if the
nominal
pressure
is
not
reached
on
correcjtion
of
the
tyre
inflation
pressure.
All
wheels
green'xThe
system
is
active
and
refers
to
the
nomij
nal
pressures
for
the
warning.'xIn
the
case
of
tyres
with
special
approval:
the
system
is
active
and
is
using
the
tyre
inflation
pressures
saved
during
the
last
reset
for
the
warning.
One
to
four
wheels
yellow
There
is
a
flat
tyre
or
major
loss
of
tyre
inflationpressure
in
the
tyres
shown.
Wheels
grey
Tyre
pressure
losses
might
not
be
detected.
Possible
causes:
'xMalfunction.'xThe
tyre
inflation
pressure
is
being
measured, after
confirmation
of
the
tyre
settings.'xIn
the
case
of
tyres
with
special
approval:
a
system
reset
is
being
performed.
Tyres
with
special
approval:
performing
a
reset
1.CAR2.Vehicle
status3.Tyre
Pressure
Monitor4.Make
sure
that
the
correct
tyre
settings
have
been
made.
Tyre
settings,
see
page
348.5.Switch
on
drive-ready
state
but
do
not
drive
off.6.Reset
the
tyre
inflation
pressure:
Perform reset.7.Drive
off.
The
wheels
are
shown
grey
and
the
following
apj
pears
on
the
display:
Resetting
tyre
pressure

If
a
tyre
inflation
pressure
check
is
required
Message
A
symbol
with
a
Check
Control
message
is
shown
on
the
Control
Display.SymbolPossible
causeThe
tyre
was
not
inflated
properly,
for
example
insufficient
air
was
added
or
there
was
a
natural,
even
loss
of
tyre
inflation
pressure.
Action
Check
the
tyre
inflation
pressure
and
adjust
as necessary.
If
the
tyre
inflation
pressure
is
insufficient
Message A
yellow
warning
lamp
is
illuminated
in
the
instrument
cluster.
In
addition,
a
symbol
with
a
Check
Control
mesj
sage
is
shown
on
the
Control
Display.
SymbolPossible
causeThere
has
been
a
loss
of
tyre
inflaj
tion
pressure.
Action
1.Reduce
speed.
Do
not
exceed
a
speed
of
130
km/h,
80
mph.2.At
the
next
opportunity,
for
example
at
a
filling
station,
check
the
tyre
inflation
pressure
in
all
four
tyres
and
correct
if
necessary.If
there
is
a
significant
loss
of
tyre
inflation
pressure
Message A
yellow
warning
lamp
is
illuminated
inthe
instrument
cluster.
In
addition,
a
symbol
with
the
affected
tyre
is
shown
in
a
Check
Control
message
on
the
Conj
trol
Display.SymbolPossible
causeThere
is
a
flat
tyre
or
substantial
loss
of
tyre
inflation
pressure.
Action
1.Reduce
your
speed
and
carefully
stop
the
vej
hicle.
Avoid
heavy
braking
and
sudden
steerj
ing
manoeuvres.2.Check
whether
the
vehicle
is
equipped
with
standard
tyres
or
run-flat
tyres.
The
symbol
identifying
run-flat
tyres
is
a
cirj
cle
with
the
letters
RSC
on
the
tyre
sidewall.
Run-flat
tyres,
see
page
341.3.Follow
the
description
of
what
to
do
when
the
vehicle
gets
a
flat
tyre.
What
to
do
in
the
event
of
a
flat
tyre,
see
page
352.
Messages:
in
the
case
of
tyres
with
special
approval
GeneralDynamic
Stability
Control
DSC
will
be
activated
if
necessary
as
soon
as
a
message
for
low
tyre
inj flation
pressure
appears.
Seite
350MOBILITYWheels
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for
Part
no.
01405A1EDD7
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Safety
note
WARNING
A
damaged
standard
tyre
with
too
little
or
no
tyre
inflation
pressure
impairs
driving
characterj istics,
for
example
steering
and
braking.
Tyreswith
run-flat
properties
allow
a
limited
level
ofstability
to
be
maintained.
There
is
a
risk
of
acj
cident.
Do
not
continue
driving
if
the
vehicle
is fitted
with
standard
tyres.
Comply
with
the
notes
on
run-flat
tyres
and
continuing
to
drive
with
these
tyres.
If
a
tyre
inflation
pressure
check
is
required
Message
A
symbol
with
a
Check
Control
message
is shown
on
the
Control
Display.
Symj
bolPossible
causeThe
tyre
was
not
inflated
properly,
for example
insufficient
air
was
added.
The
system
has
detected
a
wheel
change,
but
no
reset
has
been
perj
formed.
The
tyre
inflation
pressure
has
dropj
ped
compared
to
the
last
reset.
No
reset
has
been
performed
on
the
system.
The
system
is
using
the
tyre
inflation
pressures
saved
during
the
last
reset
for
the
warning.
Action
1.Check
the
tyre
inflation
pressure
and
adjust as
necessary.2.Perform
a
reset
of
the
system.If
the
tyre
inflation
pressure
is
too
low
Message A
yellow
warning
lamp
is
illuminated
inthe
instrument
cluster.
In
addition,
a
symbol
with
a
Check
Control
mesj
sage
is
shown
on
the
Control
Display.SymbolPossible
causeThere
has
been
a
loss
of
tyre
inflaj
tion
pressure.
No
reset
has
been
performed
on
the
system.
The
system
is
using
the
tyre
inflation
pressures
saved
during
the
last
reset
for
the
warning.
Action
1.Reduce
speed.
Do
not
exceed
a
speed
of
130
km/h,
80
mph.2.At
the
next
opportunity,
for
example
at
a
filling
station,
check
the
tyre
inflation
pressure
in
all
four
tyres
and
correct
if
necessary.3.Perform
a
reset
of
the
system.
If
there
is
a
significant
loss
of
tyre
inflation
pressure
Message A
yellow
warning
lamp
is
illuminated
inthe
instrument
cluster.
In
addition,
a
symbol
with
the
affected
tyre
is
shown
in
a
Check
Control
message
on
the
Conj
trol
Display.
Seite
351Wheels
and
tyresMOBILITY351
Online
Edition
for
Part
no.
01405A1EDD7
-
X/20

SymbolPossible
causeThere
is
a
flat
tyre
or
substantial
loss
of
tyre
inflation
pressure.
No
reset
has
been
performed
on
the
system.
The
system
is
using
the
tyre
inflation
pressures
saved
during
the
last
reset
for
the
warning.
Action
1.Reduce
your
speed
and
carefully
stop
the
vej
hicle.
Avoid
heavy
braking
and
sudden
steerj
ing
manoeuvres.2.Check
whether
the
vehicle
is
equipped
with
standard
tyres
or
run-flat
tyres.
The
symbol
identifying
run-flat
tyres
is
a
cirj
cle
with
the
letters
RSC
on
the
tyre
sidewall.
Run-flat
tyres,
see
page
341.3.Follow
the
description
of
what
to
do
when
the
vehicle
gets
a
flat
tyre.
What
to
do
in
the
event
of
a
flat
tyre,
see
page
352.
What
to
do
in
the
event
of
a
flat
tyre
Standard
tyres
1.Identify
the
damaged
tyre.
Check
the
tyre
inflation
pressure
in
all
four tyres,
for
example
using
the
tyre
pressure
inj
dicator
of
a
flat
tyre
kit.
In
the
case
of
tyres
with
special
approval:
if
all
four
tyres
are
inflated
to
the
correct
tyre
inflaj tion
pressures,
the
Tyre
Pressure
Monitor
might
not
have
been
reset.
Perform
a
reset.
If
no
tyre
damage
can
be
found,
contact
a
Service
Partner
of
the
manufacturer
or
anj
other
qualified
Service
Partner
or
a
specialist
workshop.2.Repair
the
flat
tyre,
for
example
using
a
flat tyre
kit
or
by
changing
the
wheel.The
use
of
sealant,
for
example
a
flat
tyre
kit,
can
damage
the
wheel
electronics.
Have
the
elecj tronics
replaced
at
the
next
opportunity.
Run-flat
tyres Safety
note
WARNING
A
run-flat
tyre
with
too
little
or
no
tyre
inflation pressure
will
change
the
vehicle's
handling characteristics,
for
example
there
may
be
rejduced
directional
stability
when
braking,
longerstopping
distances
and
different
self-steeringcharacteristics.
There
is
a
risk
of
accident.
Drivewith
care
and
do
not
exceed
a
speed
of
80
km/h,
50
mph.
Maximum
speed
If
a
tyre
is
damaged
you
can
continue
your
jourj ney,
but
do
not
exceed
a
maximum
speed
of80
km/h,
50
mph.
Continuing
a
journey
with
a
flat
tyre
Note
the
following
if
you
continue
a
journey
with
a
flat
tyre:
1.Avoid
heavy
braking
and
sudden
steering
manoeuvres.2.Do
not
exceed
a
speed
of
80
km/h,
50
mph.3.As
soon
as
there
is
an
opportunity,
check
the tyre
inflation
pressure
in
all
four
tyres.
Possible
driving
distance
with
a
deflatedtyre
The
possible
driving
distance
varies
depending
on
the
load
and
stresses
the
vehicle
is
subjected to,
for
example
speed,
the
nature
of
the
road
surj
face,
outside
temperature.
The
driving
distance may
be
shorter
but
can
also
be
increased
by
adopting
a
more
careful
driving
style.
If
the
vehicle
is
moderately
loaded
and
subjected
to
low
stress,
it
is
possible
to
travel
up
to
80
km,
50
miles.
Seite
352MOBILITYWheels
and
tyres352
Online
Edition
for
Part
no.
01405A1EDD7
-
X/20