2005 BMW 645CI COUPE&CONVERTIBLE tow

Navigation
Driving tips
123Reference
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traffic congestion, the route can also be
calculated so that it is routed through the
traffic congestion.
>"Avoid tollroads"
Tollroads are avoided where possible.
>"Avoid ferries"
Ferries are avoided where possible
To exit from the menu:
Select the arrow and press the controller.
The route is planned according to fixed rules.
Here the road type is taken into account, e.g.
whether freeways or winding roads are con-
cerned. The road types are stored on the navi-
gation DVD. As a result, the routes recom-
mended by the navigation system may not
always be the same ones that you would
choose based on personal experience.
You can change the choice of route as often as
desired when entering the destination and
whenever the destination guidance is active.
Word matching principle
The system supports the word matching princi-
ple to make it easier for you to enter the names
of streets or towns/cities. The system runs
ongoing checks, comparing your destination
entries with the data stored on the navigation
DVD as the basis for instant response. The user
benefits include:
>Names of specific locations can also vary
from the official versions provided that the
spelling of the entry corresponds to a stan-
dard form used in another country.
Example:
Instead of 'München", you can also enter
the English spelling 'Munich' or the Italian
spelling 'Monaco'.
>When you are entering the names of towns/
cities and streets the system will complete
them automatically as soon as enough let-
ters are available to ensure unambiguous
identification.>The system only accepts name entries
beginning with letters that are stored on the
navigation DVD. The system will not accept
nonexistent names and addresses.

Navigation
Driving tips
125Reference
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Mobility
Terminating/continuing
destination guidance
Control Center, for principle details, refer to
page16.
This symbol marks the current destination.
1.Select the current destination and press the
controller.
2.Select "Start guidance" and press the con-
troller.
The destination guidance is switched off.
When you park the vehicle before reaching the
entered destination, upon restarting you will
see the question "Continue guidance to desti-
nation?".
The destination guidance starts automatically
after a short time.
To start destination guidance immediately:
Select "Yes" and press the controller.
Displaying current position
You can also display your current position with
the destination guidance switched off.
Control Center, for principle details, refer to
page16.
1.Select "Navigation" and press the control-
ler.
2.Select "Current position" and press the
controller.
The current position of your BMW is displayed.
If the navigation system is unable to identify a
town or city, your current map coordinates will
appear.
To exit from the menu:
Select the arrow and press the controller.
You can also have the current position dis-
played on a map, refer to page127.

Navigation
Driving tips
127Reference
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Mobility
Displaying route
You have the option of displaying various views
of the route during destination guidance.
Displaying arrow view
1.Select "Navigation" and press the control-
ler.
2.Select "Arrow display" and press the con-
troller.
Displaying route map
You can have your current position displayed on
a map. After starting the destination guidance,
the planned route is shown on the map.
1.Select "Navigation" and press the control-
ler.
2.Select "Map, facing north" or "Map, direc-
tion of travel".
3.Press the controller.
At scales of less than 300 miles/500 km, you
enjoy the option of deciding whether to orient
the map to north or toward your current direc-
tion of travel. At scales of greater than
300 miles/500 km, the map always points
toward north.
Changing scale
Turn the controller to change the scale.
Displaying towns/cities and streets of
route
You can have the names of the streets and
towns/cities on your route displayed whenever
the destination guidance is active.
The distances remaining to be traveled on each
individual road and directional arrows are also
displayed.
Control Center, for principle details, refer to
page16.
1.Select "Navigation" and press the control-
ler.
2.Select "Route list" and press the controller.
To exit from the menu:
Select the arrow and press the controller.

Navigation
Driving tips
129Reference
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What to do if …
What to do if …
>a navigation DVD is inserted, but the
request to insert the DVD is displayed on
the Control Display?
The navigation DVD may not be the right
DVD for the navigation system. The DVD is
labeled accordingly.
>you request the current position of your
vehicle, but do not receive a precise dis-
play?
The system is unable to receive enough
GPS signals at your current position owing
to obstructions, your current position is not
yet available on your navigation DVD, or the
system is in the process of calculating your
current position. As a rule, reception is
guaranteed under a clear sky.
>the destination guidance does not accept a
destination?
The data of the destination is not stored on
the navigation DVD that is loaded. Select a
destination that is as close as possible to
the original.
>the destination guidance does not accept
an address without the street name?
On the navigation DVD, no downtown area
can be determined for the city or town
entered. Enter any street, or a destination
such as the railway station etc., then start
the destination guidance.>you want to enter a destination for the des-
tination guidance, but it is not possible to
select the letters for your desired entry?
The data of the destination is not stored on
the navigation DVD that is loaded. In this
case, the system will not offer you any let-
ters to choose from. Select a destination
that is as close as possible to the original.
>the system stops furnishing directions on
which way to turn as you approach intersec-
tions?
You are driving in an area that has not yet
been completely recorded on the naviga-
tion DVD. Instead of an arrow indicating a
turn, you will see an arrow which indicates
the general direction of your planned route.
Or you have left the recommended route
and the system requires a few seconds to
calculate a new recommended route.
>the navigation system does not react to
entries?
If the battery was disconnected, it then
takes up to 10 minutes before the system is
once again operational.

Mobility
171Reference
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heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to
a level of performance which all passenger car
tires must meet under the Federal Motor Vehi-
cle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the
laboratory test wheel than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either sep-
arately or in combination, can cause heat
buildup and possible tire failure.<
RSC – run-flat tires
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the side
of the tire, refer to page172.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
Tire condition
Inspect your tires frequently for tread wear,
signs of damage and foreign objects lodged in
the tread, and check the tread depth.
Minimum tread depth
The tread depth should not drop below 0.12 in/
3 mm, although, for example, European legisla-
tion only specifies a minimum tread depth of
0.063 in/1.6 mm.
At tread depths below 0.12 in/3 mm there is an
increased risk of high-speed hydroplaning,
even when only small amounts of water are
present on the road surface.
Winter tires noticeably loose their suitability for
winter use below a tread depth of 0.16 in/4 mm. New tires should be mounted in the interest of
safety.
Wear indicators at the tread-groove base, refer
to arrow, are distributed over the tire's circum-
ference and are marked on the side of the tire
with TWI – Tread Wear Indicator. If the indica-
tors are at the level of the profile, the legal per-
missible tread depth of 0.063 in/1.6 mm has
been reached.
Tire damage
Due to low-profile tires, please note that
wheels, tires and suspension parts are
more susceptible to road hazard and conse-
quential damages.
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. These
kinds of problems may also be signaled by other
changes in vehicle response, such as a strong
tendency to pull to the left or right.
In these cases reduce your speed immediately
and have the wheels and tires inspected imme-
diately. To do this, carefully drive to the next
BMW center or a specialized tire dealer which
works with personnel trained in accordance
with BMW specifications. Have the vehicle
towed to the workshop if necessary.
Tire damage can be extremely dangerous to
vehicle occupants and other road users.<
Unprofessional attempts by laymen to
service tires can lead to damage and acci-
dents. Have this work performed by skilled pro-
fessionals only. The technicians at your BMW
center will be glad to assist you with the
required professional knowledge and special-
ized equipment.<

Mobility
175Reference
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Engine compartment
1Filler neck for engine oil, refer to Topping off
engine oil
2Brake fluid reservoir, located beneath the
microfilter cover, refer to page177
3Dipstick for engine oil, refer to Checking oil
level
4Starting-aid terminal, refer to page186
5Washer fluid reservoir of the headlamp and
windshield cleaning systems, refer to
page61
6Expansion tank for coolant, refer to
page176
Engine oil
The engine oil consumption is dependent on
driving style and driving conditions.
Checking oil level
1.Park the vehicle on a level surface with the
engine warm, i.e. after an uninterrupted
drive of at least 6 miles/10 km.
2.Switch off the engine.3.After approx. 5 minutes, pull the dipstick3
out and wipe it off with a clean lint-free
cloth, paper towel, or similar material.
4.Carefully push the dipstick all the way into
the guide tube and pull it out again.
The oil should extend to between the two
marks on the dipstick.
The oil quantity between the centers of the two
marks on the dipstick, refer to arrows, is approx.
1.6 US quarts/1.5 liters.
Do not fill beyond the upper mark on the
dipstick. Excess oil can damage the
engine.<

Replacing components
180
Replacing components
Onboard tool kit
The onboard tool kit is located in the luggage
compartment under the floor mat.
Wiper blade replacement
1.Fold the wiper arm out and grasp it firmly.
2.Press the locking tabs together while slid-
ing the wiper blade toward the front to dis-
engage it.
Lamps and bulbs
Lamps and bulbs make an essential contribu-
tion to driving safety. Therefore, exercise suffi-
cient care when handling them. If you are not
familiar with the specified procedures, have the
corresponding work carried out at your BMW
center.Never touch the glass on new bulbs
with your bare fingers, as even minute
amounts of contamination will burn into the
bulb's surface and reduce its service life. Use a
clean cloth, napkin etc., or hold the bulb by its
metal socket.<
You can obtain a selection of replacement bulbs
at your BMW center.
When working on the lighting system
you should always switch off the lights
affected to prevent short circuits.
To avoid possible injury or equipment damage
when replacing bulbs, observe any instructions
provided by the bulb manufacturer.<
When performing maintenance on the head-
lamps, comply with the instructions in the sep-
arate Caring for your vehicle brochure.
In the case of bulbs where the replace-
ment is not described, please consult
your BMW center.<
Xenon lamps
The service life of these lamps is very long and
the probability of a failure is very low, provided
that they are not switched on and off an unusual
number of times. In the unlikely event that one
of these lamps should fail, you can continue
driving under poor visibility conditions by
switching on your fog lamps and proceeding
carefully, where allowed by law.
To avoid the risk of potentially fatal inju-
ries: owing to the extremely high voltages
at which these units operate, service work on
the xenon lighting system should only be car-
ried out by a BMW center.<

Mobility
181Reference
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High beams, parking lamps
The illustration shows the front left side of the
engine compartment.
High beams
Bulb 55 watts, 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.
Parking lamps
Bulb 10 watts
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 signal, sidemarker
Your BMW is equipped with two turn signal
lamps per side in the front.
Turn signal lamp 1
Bulb 21 watts, WY 21 SV
The illustration shows the front right side of the
engine compartment.1.The lever shown:
>Right turn signal: press downward
>Left turn signal: press upward
2.Remove the bulb holder towards the rear.
3.Remove and replace the bulb.
Turn signal lamp 2
Bulb 21 watts, WY 21 SV
Bulb replacement for the turn signal lamp 2 is
possible via the wheel well.
The illustration shows the left side of the vehi-
cle.
1.Turn the steering all the way to be able to
remove the cover, refer to illustration.
2.Turn the ignition key to position 0.
3.Unscrew the two bolts using the open-end
wrench from the onboard tool kit, refer to
page180.
4.Turn the bulb holder to the left and remove,
refer to arrow.
5.Remove and replace the bulb.