2007 BMW M6 CONVERTIBLE engine

Maintenance
208
Socket for OBD Onboard
Diagnostics interface
Components which are decisive for the
exhaust-gas composition can be checked via
the OBD socket with a device.
This socket is located under a cover on the left
side of the driver's footwell, directly under the
instrument panel.
Exhaust-gas values
The warning lamp lights up. The
exhaust-gas values are deteriorating.
Have the vehicle checked as soon as
possible.
Display of the previously described
malfunction on Canadian models.
The lamp flashes under certain conditions. This
is a sign of excessive misfiring of the engine. In
this case, you should reduce speed and drive to
the nearest BMW center as soon as possible.
Heavy engine misfiring causes serious damage
to the emission-relevant components, espe-
cially the catalytic converter, within a short time.
If the fuel filler cap is not properly tight-
ened, the OBD system can detect the
escape of fuel vapor. This causes a display to
light up. If the cap is then tightened, the display
should go out within a few days.<
Event data recorders
Your vehicle may be equipped with one or sev-
eral measuring and diagnosis modules, or with a
device for recording or transmitting certain
vehicle data or information. If you have also sub-
scribed to a BMW Assist plan, then certain vehi-
cle data can be transmitted or recorded to
enable corresponding services.
Care
Important information on care and maintenance
of your BMW is contained in the Caring for your
vehicle brochure.

Replacing components
210 Have work on the xenon lighting system
performed only by your BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel. Due to the high voltage involved, there
is a danger to life and limb when work is carried
out improperly.<
High beams, parking lamps
The illustration shows the front left side of the
engine compartment.
High beams
55-watt bulb, H 7
1.Remove the cover cap1 by pressing the tab
and removing the cover cap upward.
2.Press the bulb holder from above to release
it.
3.Remove the bulb holder.
4.Remove and replace the bulb.
The lamp H7 is pressurized; wear eye
protection and protective gloves. Other-
wise, there is a danger of injuries if the bulb is
accidentally damaged during replacement.<
Parking lamps
10-watt bulb
Bulb holder and reflector are one unit and
are replaced together.<
1.Turn the bulb holder2 to the right and
remove.
2.Press the snap connection on the plug con-
nector, pull off the bulb holder and replace.
Front turn signals, side marker lamps
Your BMW is equipped with two turn signal
lamps per side in the front.
Turn signal lamp 1
21-watt bulb, WY21SV
The illustration shows the front right side of the
engine compartment.
1.Press the lever shown:
>downward for the right turn signal
>upward for the left turn signal
2.Remove the bulb holder towards the rear.
3.Remove and replace the bulb.
Turn signal lamp 2
21-watt bulb, WY21SV
The bulb for the turn signal lamp 2 can be
replaced via the wheel well.
The illustration shows the front left side of the
vehicle.
1.Steering turned all the way to the left or
right.
2.Turn off the light, switch off the ignition and
remove the remote control from the ignition
lock.

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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 engage first gear or
reverse gear with a manual transmission, or
select a drive position with the selector level for
a 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 r e q u ir e d , s e t i t up o n t h e ro a d s id e a t a n
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.
Spare wheel*
1.Fold up the convertible top compartment
floor, refer to Convertible: increasing lug-
gage compartment capacity, page35.
2.Pull back lock1, fold open tensioning lock2
completely and loosen the belt3.
3.Remove the cover4.
4.Take the tool mounting out of the spare
wheel.
5.Remove the spare wheel.
Preparing wheel change
1.Observe the safety precautions above.
2.Prevent the vehicle from rolling:
Place the chock behind the front wheel on
the other side of the vehicle, or on inclines,
in front of this wheel. On steeply inclined
roads, always secure the vehicle against
rolling.
3.Loosen the lug bolts a half turn.

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4.Coupe: hook the belt into the lashing eyes5
and lay it in the belt guide which runs in the
center of the lid.
Convertible: hook the belt into the lashing
eyes5 and7 and lay it in the belt guide of
the lid which runs offset.
5.Completely open the tensioning lock.
6.Thread the belt3 through the axis6 of the
tensioning lock without twisting it and ten-
sion it by hand.
7.Tighten the belt firmly with the tensioning
lock by opening and closing the lock several
times.
8.Fold the tensioning lock closed and stow
the protruding belt end.
Driving with spare wheel
With certain wheel-and-tire combinations
the size of the spare wheel differs from
that of the other wheels. The spare wheel is
equivalent to them in all load and speed ranges.
However, to restore the original state, the nor-
mal wheel should be remounted as soon as
possible.<
Vehicle battery
Maintenance
The battery is 100 % maintenance-free, i.e., the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate.
Your BMW center will be glad to advise in all
matters concerning the battery.
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 page220.
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
Following a temporary interruption of the power
supply, the operation of some equipment is lim-
ited and must be reinitialized. Individual settings
are also lost and must be updated:
>Seat, mirror and steering wheel memory
The position must be stored again, refer to
page48.
>Time and Date
The values must be updated, refer to
page76.
>Radio
Stations must be stored again if necessary,
refer to page154.
>Navigation system
Wait until the system starts, refer to
page122.

Giving and receiving assistance
220
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.<
Some of the articles contained in the first-aid kit
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*
The Roadside Assistance of the BMW Group
offers you assistance in the event of a break-
down around the clock, including on weekends
and public holidays.
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 page186.
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.
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, fol-
low 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 page203. The cover cap is marked with
a+.

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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 page209, and
should always remain in the vehicle. It can be
screwed in at the front or rear of the BMW M6.
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.

Giving and receiving assistance
222 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 page58; 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.<
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.

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Tow-starting
Do not tow-start the vehicle if possible, but
instead start the engine by means of jump start-
ing, refer to page220. With a catalytic con-
verter, the vehicle should only be tow-started
with the engine cold.
Manual transmission
1.Switch on the hazard warning flashers,
comply with country-specific regulations.
2.Switch on the ignition, refer to page58.
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 page58.
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.