2008 BMW M6 engine

Replacing components
220 4.Correct tire inflation pressure to 29 psi/
200 kPa. With the ignition switched on:
>Increase inflation pressure: switch on
device, position I. To check currently set
inflation pressure, briefly switch off
device.
Do not allow compressor to run
longer than 10 minutes, otherwise
the device will overheat and may be dam-
aged.<
>Reduce inflation pressure: press
button8 or turn screw8 on pressure
gauge.
If the inflation pressure is not held, drive
the vehicle again, refer to Distributing
sealant. Then repeat steps 1 to 4 once.
Using the M Mobility System can be ineffective
with tire damage from a size of approx. 0.16 in/
4 mm. Please contact the nearest BMW center,
refer to page225, or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel if the tire can-
not be made ready for driving with the
M Mobility System.<
The tire inflation pressure must be at least
29 psi/200 kPa. Otherwise, do not con-
tinue driving.<
Continue driving
Do not exceed the permissible maximum
speed of 50 mph/80 km/h, otherwise
accidents can occur.<
Reinitialize the Flat Tire Monitor.
For details, refer to page86.
Have the defective tire and the sealant bottle of
the M Mobility System replaced as soon as
possible.<
Changing wheels*
Safety precautions in the event of a flat
tire or wheel change: park the vehicle as
far as possible from passing traffic and on solid
ground. Switch on the hazard warning flashers.
Apply the handbrake and shift into first gear or
reverse with the manual transmission, or move the selector lever into a drive position with the
sequential transmission.
Have all vehicle occupants get out of the vehicle
and ensure that they remain outside the imme-
diate area in a safe place, such as behind a
guardrail.
If a warning triangle
* or portable hazard warning
lamp
* is required, set it up on the roadside at an
appropriate distance from the rear of the vehi-
cle. Comply with all safety guidelines and regu-
lations.
Change the wheel only on a level, firm surface
which is not slippery. The vehicle or the jack
could slip to the side if you attempt to raise the
vehicle on a soft or slippery surface such as
snow, ice, tiles, etc.
Position the jack on a firm support surface.
Do not use a wooden block or similar object as a
support base for the jack, as this would prevent
it from extending to its full support height and
reduce its load-carrying capacity.
To avoid serious or fatal injury: never lie under
the vehicle, and never start the engine while it is
supported by the jack.<
What you will need
To avoid rattling noises later on, note the posi-
tions of the tools before removing them, then
return them to their initial positions after com-
pleting work.
1Chock
*
2Vehicle jack*
3Lug wrench*
The tools are located in the hollow of the spare
wheel.

Mobility
223Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Charging battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine switched off. For the connections, refer
to Jump starting on page225.
Disposal
After replacement, have old batteries dis-
posed of by your BMW center or deposit
them at a recycling center. Maintain the battery
in an upright position for transport and storage.
Always secure the battery to prevent it from tip-
ping over during transport.<
Power failure
After a temporary power supply interruption,
some settings are lost. Take the following
steps:
>Seat, mirror and steering wheel memory
Store the positions again, refer to page47.
>Time and date
Reset, refer to text starting on page77.
>Radio
Store stations again, refer to page156.
>Navigation system
Wait until the system starts, refer to
page124.
Fuses
Never attempt to repair a blown fuse, and
do not replace a defective fuse with a sub-
stitute of another color or amperage rating, as
this could lead to overloading of the wiring, ulti-
mately resulting in a fire in the vehicle.<
Spare fuses and a pair of plastic tweezers are
located in the compartment for the onboard tool
kit, refer to page216.
Information on fuse allocation is located below
the bracket for the onboard tool kit, see below.
In glove compartment
1.Press the button on the back in the center of
partition1 and pull out the partition upward,
arrow2.
2.Press the coupling downward, arrow3, and
fold the lid 4 forward.
In luggage compartment
Fold the cover under the floor mat upward and
remove the bracket for the onboard tool kit.
Information on fuse allocation1 and additional
fuses2 are provided there.

Mobility
225Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Warning triangle*
The warning triangle is located on the left-hand
side in the luggage compartment.
First-aid kit*
The first-aid kit is located in the filler element of
the rear seat backrest.
1.Press the button downward and pull the
filler element forward.
2.Take out first-aid kit.
To refit the filler element, insert the two
bottom tabs into the strip and press the
filler element back into place. Make sure that
you do not damage the rear seat upholstery. have a limited service life. For this reason, check
the expiration dates of each of the items regu-
larly and replace any whose expiration dates
have passed.
Roadside Assistance*
BMW Roadside Assistance offers you assis-
tance in the event of a breakdown around the
clock, including on weekends and public holi-
days.
The phone numbers of the Roadside Assis-
tance in your home country can be found in the
BMW Contact directory.
With BMW Assist you can contact the Roadside
Assistance of the BMW Group for assistance in
the event of a breakdown directly via iDrive,
refer to page192.
Jump starting
When your battery is discharged, you can use
two jumper cables to start your BMW with
power from the battery in a second vehicle. You
can also use the same method to help start
another vehicle. Use only jumper cables with
fully-insulated clamp handles.
To avoid the risk of potentially fatal injury,
always avoid all contact with electrical
components while the engine is running. Care-
fully adhere to the following sequence, both to
prevent damage to one or both vehicles, and to
guard against possible personal injuries.<
Preparing
1.Check whether the battery of the other
vehicle has a voltage of 12 Volts and
approximately the same capacitance in Ah.
This information can be found on the bat-
tery.
2.Switch off the engine of the vehicle provid-
ing assistance.
3.Switch off any electrical systems and com-
ponents in both vehicles.

Giving and receiving assistance
226 There must not be any contact between
the bodies of the two vehicles; otherwise,
there is a danger of short circuiting.<
Connecting jumper cables
To avoid personal injury from sparks,
follow this sequence when connecting
jumper cables.<
In your BMW M6, the so-called jump-starting
terminal for jump starting in the engine com-
partment serves as a positive terminal for the
battery, also refer to engine compartment over-
view on page209. The cover cap is marked with
a+.
1.Fold open the cover of the BMW jump-
starting terminal. To do so, pull the tab.
2.Attach one end of the jumper cable plus/+
to the positive terminal of the battery or a
jump-starting terminal of the vehicle provid-
ing assistance.
3.Attach the second end of the cable to the
positive terminal of the battery or to a jump-
starting terminal of the vehicle to be started.
4.Attach one end of the jumper cable minus/–
to the negative terminal of the battery or to
an engine or body ground of the vehicle
providing assistance.
Your BMW M6 has a special nut as body
ground or negative terminal.5.Attach the second end of the cable to the
negative terminal of the battery or to the
engine or body ground of the vehicle to be
started.
Starting engine
1.Start the engine on the assisting vehicle
and allow it to run at idle for several minutes
at slightly increased speed.
2.Start the engine on the other vehicle in the
usual way.
If the first starting attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge.
3.Let the engines run for a few minutes.
4.Disconnect the jumper cables by reversing
the connection sequence.
Check the battery and recharge if necessary.
Never use spray fluids to start the
engine.<
Tow-starting and towing
Observe applicable laws and regulations
for tow-starting and towing.<
Do not transport any passengers other
than the driver in a vehicle that is being
towed.<
Using tow fitting
The threaded tow fitting is stored in the tool kit
mounted on the inside of the luggage compart-
ment under the floor mat, refer to page216, and
should always remain in the vehicle. It can be
screwed in at the front or rear of the BMW.

Mobility
227Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Only use the tow fitting that comes with
the vehicle and screw it in as far as possi-
ble. Use the tow fitting for towing only on roads.
Avoid lateral loading of the tow fitting, e.g. do
not lift the vehicle by the tow fitting. Otherwise,
the tow fitting and vehicle can be damaged.<
Access to screw thread
Front: press the arrow symbol on the cover in
the bumper.
Rear: press the arrow symbol on the cover while
prying out the cover upward by hand.
Being towed
Make sure that the ignition is switched on,
refer to page59; otherwise, the low-beam
headlamps, tail lights, turn signals and wind-
shield wipers would not be available. Do not tow
the vehicle with the rear axle raised, as other-
wise the steering can turn to the left or right.
When the engine is stopped, there is no power
assist. This then requires increased effort for
braking and steering.<
Switch on the hazard warning flashers depend-
ing on the local regulations. If the electrical sys-
tem fails, mark the vehicle to be towed, e.g. with
a sign or warning triangle in the rear window.
Manual transmission
Gearshift lever in neutral position.
Sequential Manual Transmission with
Drivelogic
Make sure that selector lever position N is
engaged with the ignition switched on, as
otherwise the engine can be damaged during
towing.<
Towing methods
Do not lift vehicle by tow fitting or body
and chassis parts; otherwise, damage
may result.<
In some countries, towing with tow bars or
ropes in public traffic is not permitted. Familiar-
ize yourself with the regulations on towing in the
respective country.
With tow bar
The towing vehicle may not be lighter
than the vehicle to be towed; otherwise, it
will not be possible to reliably control vehicle
response.<
The tow fittings used should be on the same
side on both vehicles. Should it prove impossi-
ble to avoid mounting the tow bar at an offset
angle, please note the following:
>Clearance and maneuvering capability will
be strictly limited during cornering.
>When mounted at an angle, the tow bar will
exert lateral forces, tending to push the
vehicle sideways.
Attach the tow bar to the tow fittings only,
as attachment to other vehicle parts can
lead to damage.<
With tow rope
When starting off in the towing vehicle, make
sure that the tow rope is taut.
To avoid jerking and the associated
stresses on vehicle components when
towing, always use nylon ropes or nylon straps.
Attach tow ropes to the tow fittings only, as
attachment to other vehicle parts can lead to
damage.<

Giving and receiving assistance
228
With tow truck
Do not tow the vehicle with only the front
or rear axle raised, as otherwise the
engine may be damaged or the steering can
turn to the left or right.<
Have the vehicle transported on a flatbed sur-
face only.
Tow-starting
Do not tow-start the vehicle if possible, but
instead start the engine by means of jump start-
ing, refer to page225. Vehicles equipped with a
catalytic converter should only be tow-started
when the engine is cold.
Manual transmission
1.Switch on the hazard warning flashers,
comply with country-specific regulations.
2.Switch on the ignition, refer to page59.
3.Shift into 3rd gear.
4.Tow-start with the clutch completely
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch again completely.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.
Sequential Manual Transmission with
Drivelogic
1.Switch on the hazard warning flashers,
comply with country-specific regulations.
2.Switch on the ignition, refer to page59.
3.Tow-start in selector lever position N.4.Move the selector lever into the drive posi-
tion and pull toward + within 2 seconds.
The correct gear will be selected and
engaged automatically.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.

Technical data
232
Technical data
Engine data
M6
Displacement cu in/cmμ305.1/4,999
No. of cylinders10
Maximum output hp 500
at engine speed rpm 7,750
Maximum torque lb ft/Nm 383/520
at engine speed rpm 6,100

Everything from A to Z
240
Everything from A to Z
Index
"..." Identifies Control Display
texts used to select
individual functions, and
indicates where to find them
in the text.
A
ABS Antilock Brake
System82
– indicator lamp84
Accepted calls184
Accessories6
Accident, refer to Emergency
request224
Activated-charcoal filter for
automatic climate
control105
Activating hour signal78
"Activation time" for parked-
car ventilation106
Active front head restraints48
Adapter for spare key28
Adaptive brake lamps, refer to
Brake force display90
Adaptive Head Light98
"Add digits" for mobile
phone184
Additives
– coolant213
– engine oil, refer to Approved
engine oils212
"Address book" for navigation
system134
Address for navigation
– deleting135
– entering126,129
– selecting134
– storing134
– storing current position134
"Add to address book"133
"Add to destination
list"129,131Adjusting interior
temperature102
Adjusting thigh support46
Adjusting tone in audio mode,
refer to Tone control151
"After door opened"48
"After unlocking"48
Airbags90
– deactivating, refer to
Exception for front
passenger seat56
– indicator/warning lamp92
– indicator lamp for front
passenger airbags91
– sitting safely45
Air distribution
– automatic102
– manual103
Airing, refer to Ventilation105
Air outlets, refer to
Ventilation105
Air recirculation, refer to AUC
Automatic recirculated-air
control104
"Air recirculation on / off"53
Air supply, automatic climate
control101
Air volume103
AKI, refer to Fuel
specifications201
Alarm system35
– avoiding unintentional
alarms36
– interior motion sensor36
– switching off alarm35
– switching off tilt alarm
sensor and interior motion
sensor36
– tilt alarm sensor36
"All channels"162
"All doors"30
All-season tires, refer to
Winter tires206"All stations", calling up with
radio154,157
Alterations, technical, refer to
For your own safety6
"AM", reception
range150,154
Antenna, refer to Caring for
your vehicle brochure
Antenna for mobile phone176
Antifreeze
– coolant213
– washer fluid67
Antilock Brake System
ABS82
Anti-theft alarm system, refer
to Alarm system35
Anti-theft system, refer to
Central locking system30
Approved axle loads, refer to
Weights235
Approved engine oils212
Approved gross vehicle
weight, refer to Weights235
Armrest, refer to Center
armrest110
Around the center console14
Around the steering wheel10
Arrival time
– refer to Computer71
– refer to Starting destination
guidance138
"Arrow display" for navigation
system139
"Arrow display pop-up
instructions"125
Ashtray111
Assist, refer to
BMW Assist191
Assistance systems, refer to
Driving stability control
systems82
Assistance window20