2008 BMW 650I CONVERTIBLE fuel reserve

Controls
75Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Engine oil temperature*
During normal operation, the engine oil temper-
ature is between approx. 1607/706 and
approx. 3407/1706.
If the engine oil temperature is too high, a mes-
sage is shown on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 18.5 US gal/
70 liters, including the reserve capacity of
approx. 2.6 US gal/10 liters. You can find infor-
mation on refueling on page208.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
After the reserve quantity has been reached, a
message briefly appears on the Control Display;
the cruising range is shown in the computer.
Below a range of approx. 30 miles/50 km, the
message remains on the Control Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Computer
Displays in instrument cluster
Press the button on the turn signal lever.
The following information is displayed in the
specified order:
>Cruising range
>Average speed
>Average fuel consumption
>No information
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The range is projected
based on the driving style over the last 20 miles/
30 km.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Average speed
Periods with the vehicle parked and the engine
switched off are not included in the calculations
of average speed.
To reset the average speed: press the BC but-
ton in the turn signal lever for approx. 2 sec-
onds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
To reset the average fuel consumption: press
the BC button in the turn signal lever for approx.
2 seconds.

Technology for comfort, convenience and safety
92 ing driving. The tires are shown in green on the
Control Display.
If a flat tire is detected during resetting
and applying the tire inflation pressures,
all tires are shown in yellow on the Control Dis-
play. The message "Tire low!" is displayed.<
Message with low tire inflation
pressure
The warning lamp lights up yellow. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation
pressure loss.
1.Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steer-
ing maneuvers. Do not exceed a speed of
50 mph/80 km/h.
Stop driving if the vehicle is no longer
equipped with run-flat tires, as it was
when it came from the factory, refer to
page214. Continued driving after a flat tire
can result in serious accidents.<
2.In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guide values:
>With low load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
>With medium load:
2 persons, cargo bay full, or
4 persons without luggage:
approx. 95 miles/150 km
>With full load:
4 persons, luggage compartment full:
approx. 30 miles/50 km
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h. In the event of
pressure loss, vehicle handling changes. This
includes reduced tracking stability in braking,
extended braking distances and altered natural
steering characteristics.
If unusual vibrations or loud noises occur while
the vehicle is being driven, this can indicate final
failure of the damaged tire. Reduce speed and stop at a suitable location as soon as possible;
otherwise, pieces of the tire could become
detached and cause an accident. Do not con-
tinue driving, but instead contact your BMW
center.<
Malfunction
The yellow warning lamp flashes and
then lights up continuously. The tires
are shown in gray on the Control Dis-
play and a message is displayed. No flat tire can
be detected.
A message like this is displayed in the following
situations:
>In case of a malfunction;
have the system checked.
>If a wheels is mounted without TPM elec-
tronics.
>If TPM is temporarily interfered with by
other systems or devices which use the
same radio frequency.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
Systems
Each tire should be checked monthly when cold
and inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. If
your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire infla-
tion pressure label, you should determine the
proper tire inflation pressure for those tires. As
an added safety feature, your vehicle has been
equipped with a tire pressure monitoring sys-
tem, TPMS, that illuminates a low tire pressure
indicator when one or more of your tires are sig-
nificantly under-inflated. Accordingly, when the
low tire pressure indicator illuminates, you
should stop and check your tires as soon as
possible, and inflate them to the proper pres-
sure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Underinflation also reduces fuel effi-
ciency and tire tread life, and may affect the
vehicle's handling and stopping ability. Please
note that the TPMS is not a substitute for

Things to remember when driving
124
Things to remember when driving
Breaking-in
Moving parts need time to adjust to one
another. To ensure that your vehicle continues
to provide optimized economy of operation
throughout an extended service life, we request
that you devote careful attention to the follow-
ing section.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at changing engine and driving speeds,
however do not exceed 4,500 rpm or 100 mph/
160 km/h.
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
From 1,200 miles/2,000 km
The engine and vehicle speed can gradually be
increased.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in
period. Therefore, drive reservedly during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive in a reserved manner during
this break-in period.
Clutch
The function of the clutch is only at its opti-
mized level after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
Observe the break-in instructions again if com-
ponents mentioned above must be replaced
after subsequent driving operation.
Saving fuel
The fuel consumption of your vehicle depends
on various factors. Through a few simple steps,
your driving style, and regular maintenance, you
can have a positive influence on your fuel con-
sumption and environmental impact.
Removing unnecessary cargo
Additional weight increases fuel consumption.
Removing add-on parts after use
Remove unneeded auxiliary mirrors, roof or rear
luggage racks after use. Add-on parts attached
to the vehicle impede the aerodynamics and
increase the fuel consumption.
Closing windows and the glass sunroof
An open glass sunroof or open windows like-
wise increase the drag coefficient and therefore
the fuel consumption.
Checking tire inflation pressures
regularly
Check and correct the tire inflation pressure as
needed at least twice a month and before long
trips.
An insufficient tire inflation pressure increases
the rolling resistance and thus increases the
fuel consumption and tire wear.
Driving off immediately
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive at a moderate engine
speed. This is the fastest way for the cold
engine to reach its operating temperature.

Refueling
208
Refueling
Switch off the engine before refueling,
otherwise no fuel can be filled into the
tank and a message is displayed.<
When handling fuel, always observe all
applicable precautionary measures and
regulations. Never transport reserve fuel con-
tainers in the vehicle. They can leak and cause
an explosion or a fire in an accident.<
Fuel filler door
To open and close: briefly press the rear edge of
the fuel filler door.
Unlocking manually
In the event of an electrical malfunction, you can
release the fuel filler door manually:
In the luggage compartment, pull the knob with
the gas pump symbol on the right side panel.
Observe the following when refueling
When handling fuels, follow the safety
precautions posted at the filling station. Otherwise, there is a danger of personal injury
and property damage.<
Place the fuel filler cap in the bracket attached
to the fuel filler door.
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid raising the filler
nozzle during refueling, otherwise this
>results in premature pump shutoff
>can lead to reduced efficiency in the fuel-
vapor recovery system
The fuel tank is full when the filler nozzle clicks
off the first time.
Fuel tank capacity
Approx. 18.5 US gal/70 liters, including the
reserve capacity of approx. 2.6 US gal/10 liters.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Fuel filler cap
Closing
Insert the cap and turn it clockwise until there is
a clearly audible click.
Do not crush the band attached to the
cap; otherwise, the cap may not properly
seal and fuel vapors can escape.<
A message
* is displayed if the cap is loose or
missing.

Reference 237
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Weights
Never exceed either the approved axle loads or
the gross vehicle weight.
Capacities
650i Coupe 650i Convertible
Curb weight lbs./kg 3,814/1,730 4,277/1,940
Approved gross vehicle weight lbs./kg 4,652/2,110 5,049/2,290
Load lbs./kg 838/380 772/350
Approved front axle load lbs./kg 2,337/1,060 2,403/1,090
Approved rear axle load lbs./kg 2,491/1,130 2,778/1,260
Luggage compartment capacity cu ft/l 15.9/450 10.6/300
>with raised convertible top
compartment floor, refer to page35cu ft/l – 12.4/350
Notes
Fuel tank US gal/liters approx. 18.5/70 Fuel specification: page209
including reserve of: US gal/liters approx. 2.6/10
Window and headlamp
wiper system US quarts/liters approx. 5.3/5For details: page65

Everything from A to Z
254 Presetting parked car
ventilation activation
times113
Pressure, tires210
Pressure monitoring of tires,
refer to TPM Tire Pressure
Monitor90
"Profile"205
Programmable buttons on
steering wheel55
Programmable memory
buttons21
Protective function, refer to
Pinch protection system
– glass sunroof41
– windows40
R
Radiator fluid, refer to
Coolant219
Radio
– Autostore164
– controls158
– High Definition Radio166
– sampling stations163
– satellite radio169
– selecting frequency
manually163
– selecting
waveband158,162
– station search163
– station selection162
– station with best
reception164
– storing stations164
– switching on/off158
– tone control159
– volume159
– Weather Band, refer to
Weather news flashes166
Radio key, refer to Keys/
remote control28
Radio position, refer to Radio
readiness58Radio readiness58
– switched off59
– switched on58
– with comfort access37
Radio stations, storing164
Rain sensor, windshield wiper
system64
"Random", random play
sequence175
"Random all" in audio
mode176
"Random directory" in audio
mode175
Random play sequence
– CD changer175
– CD player175
"RDS"165
Reading lamps107
Rear lamps, refer to Tail
lamps224
Rearview mirrors, refer to
Mirrors53
Rear window
– heating110
– opening and closing39
"Received calls"192
Reception
– quality165
– radio stations165
– regional station164
Reception quality of mobile
phone, refer to Status
information20
Rechargeable flashlight117
Recirculated-air mode, refer
to AUC Automatic
recirculated-air control111
Recirculation of air, refer to
AUC Automatic
recirculated-air control111
Reclining seat, refer to
Seats48
Recording times, refer to
Stopwatch82
"Redial" for mobile phone192
Redialing with mobile
phone197Reflectors, refer to Tail
lamps224
Refueling208
Releasing
– hood216
– locks, refer to Unlocking37
"Relock door if not
opened"33
Remaining distance, refer to
Cruising range75
Remaining distance to
destination, refer to
Computer76
Remote control28
– battery replacement38
– comfort access36
– garage-door opener115
– luggage compartment lid31
– malfunction31,38
Removing condensation from
windows110
"Repeat directory" in audio
mode175
"Repeat" in audio mode175
"Repeat track" in audio
mode175
Replacement fuses226
Replacement remote control,
refer to New remote
controls28
Replacing bulbs, refer to
Lamps and bulbs223
Replacing tires, changing a
wheel225
Reporting safety defects7
Required fuel209
Reserve warning, refer to Fuel
gauge75
"Reset"90,91
– stopwatch82
– tone settings161
Reset, refer to Resetting tone
settings161
Residual heat112
Restraint systems
– for children56
– refer to Safety belts52