2012 BMW 640I CONVERTIBLE service

Oil types
Note
No oil additives
Oil
additives may lead to engine damage.◀
Approved oil types
Your service center can advise you on which en‐
gine oils have been approved by the manufac‐
turer of your vehicle.
The engine oil quality is critical for the life of the
engine.
Only use approved BMW High Performance oil.
Approved oils belong to the viscosity grades
SAE 0W-40, SAE 0W-30, SAE 5W-40 and SAE
5W-30.
Alternative oil types
If the approved engine oils are not available, up
to 1 US quart/liter of another oil with the follow‐
ing specification may be used.
API SM quality standards or higher. Coolant
General information
Danger of burns from hot engine
Do not open the cooling system while the
engine is hot; otherwise, escaping coolant may
cause burns.◀ Suitable additives
Only
use suitable additives; otherwise, en‐
gine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
Not all commercially available additives are suit‐
able for your vehicle. Ask your service center for
suitable additives.
Coolant level
Checking
1. Let the engine cool.
2. Turn the cap of the coolant reservoir slightly
counterclockwise

to allow any excess pres‐
sure to dissipate, and then open it. 3.
The coolant level is correct if it lies between
the minimum and maximum marks in the
filler neck. 4.
If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5. Turn the cap until there is an audible click.
6. Have the cause of the coolant loss elimi‐
nated as soon as possible. Seite 239
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Maintenance
BMW Maintenance System
The maintenance system directs you to re‐
quired
maintenance measures and thereby sup‐
ports you in maintaining road safety and the op‐
erational reliability of the vehicle.
Condition Based Service CBS
Sensors and special algorithms take into ac‐
count the driving conditions of your vehicle.
Based on this, Condition Based Service deter‐
mines the maintenance requirements.
The system makes it possible to adapt the
amount of maintenance you need to your user
profile.
Details on the service requirements, refer to
page 81, can be displayed on the Control Dis‐
play.
Service data in the remote control
Information on the required maintenance is con‐
tinuously stored in the remote control. Your
service center will read out this data and suggest
the right array of service procedures for your ve‐
hicle.
Therefore, hand your service specialist the re‐
mote control that you used most recently.
Storage periods
Storage periods during which the vehicle bat‐
tery was disconnected are not taken into ac‐
count.
If this occurs, have a service center update the
time-dependent maintenance procedures,
such as checking brake fluid and, if necessary,
changing the engine oil and the microfilter/acti‐
vated-charcoal filter. Service and Warranty
Information Booklet for US
models and Warranty and
Service Guide Booklet for
Canadian models
Please
consult your Service and Warranty Infor‐
mation Booklet for US models and Warranty and
Service Guide Booklet for Canadian models for
additional information on service requirements.
Maintenance and repair should be performed by
your service center. Make sure to have regular
maintenance procedures recorded in the vehi‐
cle's Service and Warranty Information Booklet
for US models, and in the Warranty and Service
Guide Booklet for Canadian models. These en‐
tries are proof of regular maintenance.
Socket for OBD Onboard
Diagnosis There is an OBD socket on the driver's side for
checking

the primary components in the vehicle
emissions.
Emissions
▷The warning lamp lights up:
Emissions are deteriorating. Have
the

vehicle checked as soon as pos‐
sible.
▷ The warning lamp flashes under cer‐
tain circumstances: Seite 241
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This indicates that there is excessive
misfiring in the engine.
Reduce the vehicle speed and have
the system checked immediately;
otherwise, serious engine misfiring
within a brief period can seriously
damage emission control compo‐
nents,
in particular the catalytic con‐
verter.
Fuel cap The indicator lamp lights up.
If the fuel cap is not properly tightened,
the

OBD system may conclude that fuel
vapor is escaping. If the cap is then tightened,
the display should go out in a short time.
Data memory
Your vehicle records data relating to vehicle op‐
eration, faults and user settings. These data are
stored in the remote control and can be read out
with suitable devices, particularly when the ve‐
hicle is serviced. The data obtained in this way
provide valuable information for service proc‐
esses and repair or for optimizing and develop‐
ing vehicle functions further.
In addition, if you signed a service contract for
Assist, certain vehicle data can be sent directly
from the vehicle to facilitate the desired serv‐
ices. Seite 242
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Replacing components
Tool kit
The tool kit is stored under the cargo floor cover
in the cargo area.
Wiper blade replacement
Do
not fold down the wipers without wiper
blades
Do not fold down the wipers if wiper blades have
not been installed; this may damage the wind‐
shield.◀
Replacing the wiper blades
1. To change the wiper blades, fold up, refer to
page 71, the wiper arms.
2. Fold up the wipers. 3.
Position the wiper blade in a horizontal po‐
sition.
4. Remove the wiper blade toward one side. Lamp and bulb replacement
General information
Lamps

and bulbs make an essential contribution
to vehicle safety.
The manufacturer of your vehicle recommends
that you entrust corresponding procedures to
your service center if you are unfamiliar with
them or they are not described here.
You can obtain a selection of replacement bulbs
at your service center.
Danger of burns
Only change bulbs when they are cool;
otherwise, there is the danger of getting
burned.◀
Working on the lighting system
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.◀ Seite 243
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Do not touch the bulbs
Do not touch the glass of new bulbs with
your bare hands, as even minute amounts of
contamination will burn into the bulb's surface
and reduce its service life.
Use
a clean tissue, cloth or something similar, or
hold the bulb by its base.◀
Light-emitting diodes (LEDs)
Light-emitting diodes installed behind a cover
serve as the light source for controls, display el‐
ements and other equipment.
These light-emitting diodes, which are related
to conventional lasers, are officially designated
as Class 1 light-emitting diodes.
Do not remove the covers
Do not remove the covers, and never stare
into the unfiltered light for several hours; other‐
wise, irritation of the retina could result.◀
Headlamp glass
Condensation can form on the inside of the ex‐
ternal lamps in cool or humid weather. When the
light is switched on, the condensation evapo‐
rates after a short time. The headlamp glasses
do not need to be changed.
If there is a large amount of moisture, e.g., water
droplets form in the lamp, have it checked by
your service center.
Front lamps, bulb replacement
Xenon headlamps
Because of the long life of these bulbs, the like‐
lihood of failure is very low. Switching the lamps
on and off frequently shortens their life.
If a bulb fails, switch on the front fog lamps* and
continue the trip with great care. Comply with
local regulations.
Do not perform work/bulb replacement on
xenon headlamps
Have any work on the xenon lighting system, in‐
cluding bulb replacement, performed only by a
service center. Due to the high voltage present in the system,
there
is the danger of fatal injuries if work is car‐
ried out improperly.◀
For checking and adjusting headlamp aim,
please contact your BMW center.
LEDs or light modules
The following lamps are equipped with LED
technology or are designed as light modules:
▷ Parking lamps and roadside parking lamps
▷ Turn signal lamps
▷ Front fog lamps*
▷ Daytime running lights*
Contact your service center in the event of a
malfunction.
Follow the general instructions on lamps and
bulbs, refer to page 243.
Corner-illuminating lamps

*
Follow the general instructions on lamps and
bulbs, refer to page 243.
The illustration shows the left side of the engine
compartment.
55-watt bulb, H3
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Replacing components

1.
Unscrew the cap and remove it. 2.
Detach the wire bracket. 3.
Disconnect the cable at the plug-in connec‐
tion and remove the bulb.
4. Insert the new bulb. Ensure that the bulb has
the correct orientation. Because of its
shape, the bulb can only be inserted in one
direction.
5. Secure the bulb with the wire bracket.
6. Connect the bulb.
7. Mount the cap.
Tail lamps, bulb replacement
At a glance 1
Turn signal
2 Backup lamp 3
Inside brake lamp*
4 Tail lamp
5 Outside brake lamp
6 Rear reflector*
Turn signal, outer brake, tail, and
license plate lamps
Follow the general instructions on lamps and
bulbs, refer to page 243.
These lights are made using LED technology.
Contact your service center in the event of a
malfunction.
Lamps in the trunk lid
Access to the lamps Remove the five screws using the screwdriver
from the tool kit and fold away the cover.
Inside brake lamp
*
Follow the general instructions on lamps and
bulbs, refer to page 243.
24-watt bulb, HP24W
1. Squeeze the bulb holder and pull it out. 2.
Pull off the connector.
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3.
Replace the bulb.
4. Mount the bulb holder and the cover of the
trunk lid in reverse order.
Backup lamp
Follow the general instructions on lamps and
bulbs, refer to page 243.
16-watt bulb, W16W
1. Unscrew the bulb holder counterclockwise. 2.
Pull out the bulb and replace it.
3. Mount the bulb holder and the cover of the
trunk lid in reverse order.
Changing wheels
Notes
The
vehicle equipment does not include a spare
tire.
When using run-flat tires* or tire sealants, a tire
does not need to be changed immediately in the
event of pressure loss due to a flat tire.
The tools for changing wheels are available as
accessories from your service center. Jacking points for the vehicle jack The jacking points for the vehicle jack are lo‐
cated in the positions shown.
Lug bolt lock*
The lug bolt lock is in the tool kit or in a storage
compartment close to the tool kit.
▷
Lug bolt, arrow 1.
▷ Adapter, arrow 2.
Removing
1. Attach the adapter to the wheel lug.
2. Unscrew the lug bolt.
Remove the adapter after screwing the lug bolt
back on.
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Replacing components

Vehicle battery
Maintenance
The battery is maintenance-free, i.e., the elec‐
trolyte will last for the life of the battery.
Your
service center will be glad to advise you on
questions regarding the battery.
Battery replacement
Use approved vehicle batteries only.
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
systems or functions may not be fully availa‐
ble.◀
After a battery replacement, have the battery
registered on the vehicle by your service center
to ensure that all comfort functions are fully
available.
Charging the battery
In the vehicle, only charge the battery via the
terminals, refer to page 250, in the engine com‐
partment with the engine off.
Power failure
After a temporary power loss, some equipment
needs to be reinitialized.
Individual settings need to be reprogrammed:
▷ Seat, mirror, and steering wheel memory:
store the positions again.
▷ Time: update.
▷ Date: update.
▷ Radio station: save again.
▷ Navigation system: wait for the operability of
the navigation.
Disposing of old batteries Have old batteries disposed of by your
service center or bring them to a recy‐
cling center.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport. Fuses
Notes
Replacing fuses
Never attempt to repair a blown fuse and
do
not replace a defective fuse with a substitute
of another color or amperage rating; this could
lead to a circuit overload, ultimately resulting in
a fire in the vehicle.◀
Plastic tweezers and information on the fuse
types and locations are stored in the fuse box in
the cargo area.
In the glove compartment Push the handle to the side, arrow 1, and open
the lid, arrow 2.
In the cargo area
Open the cover on the right side trim.
Information on the fuse types and locations is
found on a separate sheet. Seite 247
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