2010 BMW 335I CONVERTIBLE fuel cap

Controls overview
70
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control Dis-
play.
Check coolant level, refer to page215.
Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 2107/1006 and approx. 3007/
1506.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 16.1 gallons/
61 liters.
You can find information on refueling on
page198.
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
Once the fuel level has fallen to the reserve
zone, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control Dis-
play.
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 the instrument cluster
Calling up information
Press the button in the turn indicator lever.
The following items of information are dis-
played in the order listed:
>Cruising range
>Average speed
>Average fuel consumption
>Current fuel consumption
*
>No information
To set the corresponding units of measure,
refer to Units of measure on page72.
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The range is calculated
on the basis of the way the car has been driven
over the last 18 miles/30 km and the amount of
fuel currently in the tank.

Refueling
198
Refueling
Always switch off the engine before refu-
eling; otherwise, fuel cannot be added to
the tank and a message will be displayed.<
Take all precautionary measures and
observe all applicable regulations when
handling fuel. Do not carry any spare fuel con-
tainers in your vehicle. They can develop a leak
and cause an explosion or cause a fire in the
event of an accident.<
Fuel filler flap
Opening
1.Open the fuel filler flap. To do so, lightly
press the rear edge.
2.Turn the gas cap counterclockwise.
3.Place the gas cap in the bracket attached to
the fuel filler flap.
Closing
Fit the cap and turn it clockwise until you clearly
hear a click.
Do not pinch the band attached to the
cap; otherwise, the cap cannot be closed
properly and fuel vapors can escape. A mes-
sage will be displayed if the gas cap is loose or
missing.<
Manually releasing the fuel filler flap
In the event of a malfunction, you can release
the fuel filler flap manually:
Coupe
1.Remove the cover from the right-hand side-
wall of the cargo area.
2.Pull the knob with the fuel pump symbol.
The fuel filler flap is released.
Convertible
1.Loosen the right-hand cargo area trim panel
by turning the screws by 90°, see arrow.
2.Slightly lift the top section of the panel. It is
not necessary to remove the entire panel.
3.Pull the knob with the fuel pump symbol.
The fuel filler flap is released.
Observe the following when refueling
When handling fuels, follow the safety
instructions provided at filling stations;
otherwise, there is a risk of personal injury or
property damage.<
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler
nozzle while filling the tank, as that would lead
to
>Premature pump shutoff

Mobility
199Reference
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>Reduced efficiency of the fuel-vapor recov-
ery system.
The fuel tank is full when the filler nozzle clicks
off the first time.
Fuel tank capacity
Approx. 16.1 US gallons/61 liters, including the
reserve capacity of 2.1 US gallons/8 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 specifications
Gasoline engine: required fuel
Do not refuel with leaded fuel; otherwise,
the catalytic converter will be damaged.
Do not fill the tank with E85, i.e. fuel containing
85Ξ ethanol, nor with FlexFuel. Otherwise, the
engine and fuel supply system will be dam-
aged.<
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is:
>328i/xDrive: 87
>335i/xDrive: 89.
If you use gasoline with this minimum AKI Rat-
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Do not use any gasoline below the speci-
fied minimum fuel grade. Otherwise, the
engine could be damaged.<
Use high-quality brands
Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition,
additives, etc., among gasolines offered for sale
in the United States and Canada. Fuels contain-
ing up to and including 10Ξ ethanol or other
oxygenates with up to 2.8Ξ oxygen by weight,
that is, 15Ξ MTBE or 3Ξ methanol plus an equivalent amount of cosolvent, will not void the
applicable warranties with respect to defects in
materials or workmanship.
The use of poor-quality fuels may result in
drivability, starting and stalling problems
especially under certain environmental condi-
tions such as high ambient temperature and
high altitude.
Should you encounter drivability problems
which you suspect could be related to the fuel
you are using, we recommend that you respond
by switching to a recognized high-quality brand
such as gasoline that is advertised as Top Tier
Detergent Gasoline.
Failure to comply with these recommendations
may also result in unscheduled maintenance.<

Mobility
211Reference
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Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.
When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.
Special characteristics of winter tires
BMW recommends winter tires for winter roads
or at temperatures below +45°F/+76.
Although all-season M+S tires provide better
winter traction than summer tires, they gener-
ally fail to provide the same levels of cold-
weather performance as winter tires.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW center
can supply these labels.
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the sidewall
of the tire.
Swapping wheels between axles
BMW advises against swapping wheels
between the front and rear axles, even if all tires
have the same size, as this could impair driving
characteristics. If the tires are of mixed sizes,
swapping wheels between the axles is not per-
missible.
Snow chains*
Only certain fine-link snow chains have been
tested by BMW, classified as safe for use and
recommended. Consult your BMW center for
more information.
Snow chains must be mounted in pairs and on
the rear wheels only. Observe the manufac-
turer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
Do not initialize the Flat Tire Monitor if
snow chains are mounted; otherwise, the
instrument might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to activate DTC temporarily, refer to
page82.<

Maintenance
218
Socket for Onboard
Diagnosis OBD
On the driver's side is an OBD socket for check-
ing components relevant to the composition of
the vehicle's emissions.
Emissions
The warning lamp lights up:
The vehicle is producing higher emis-
sions. The trip can be continued. Have
the car checked as soon as possible.
Canadian models display this warning
lamp.
The lamp flashes under certain conditions. This
indicates excessive misfiring in the engine. If
this happens, you should reduce your speed
and visit your nearest BMW center as soon as
possible. Severe engine misfiring can quickly
lead to serious damage of emissions-related
components, especially the catalytic converter.
The warning lamp comes on if the gas
cap is not properly tightened and the
OBD system assumes that fuel vapor
is escaping. Make sure that the gas cap is cor-
rectly positioned and close it until it audibly
clicks.
Data recorders
Your vehicle may be equipped with one or sev-
eral measuring or diagnostic modules or a
device for recording or sending certain vehicle
data or information. In addition, if you have
signed a service contract for BMW Assist, cer-
tain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.

Reference 241
At a glance
Controls
Driving tips
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Mobility
Weights
Coupe
Convertible
Capacities
328i328i
xDrive335i335i
xDrive
Approved gross weight
>with manual transmission lbs/kg 4,277/1,940 4,508/2,045 4,497/2,040 4,685/2,125
>with automatic
transmissionlbs/kg 4,343/1,970 4,552/2,065 4,508/2,045 4,696/2,130
Load lbs/kg 882/400 882/400 882/400 882/400
Approved front axle load lbs/kg 2,061/935 2,260/1,025 2,172/985 2,326/1,055
Approved rear axle load lbs/kg 2,293/1,040 2,326/1,055 2,348/1,065 2,381/1,080
Approved roof load capacity lbs/kg 165/75 165/75 165/75 165/75
Cargo area capacity cu ft/liters 15.5/440 15.5/440 15.2/430 15.2/430
328i335i
Approved gross weight
>with manual transmission lbs/kg 4,674/2,120 4,839/2,195
>with automatic transmission lbs/kg 4,740/2,150 4,861/2,205
Load lbs/kg 838/380 838/380
Approved front axle load lbs/kg 2,105/955 2,227/1,010
Approved rear axle load lbs/kg 2,646/1,200 2,646/1,200
Approved roof load capacity lbs/kg - -
Cargo area capacity cu ft/liters 7.4 - 12.4/210 - 350 7.4 - 12.4/210 - 350
Notes
Fuel tank US gal/liters approx. 16.1/61 Fuel grade: page199
including reserve of US gal/liters approx. 2.1/8.0
Window washer system For more details: page61
including headlamp washers US qt/liters approx. 6.3/6.0

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Average fuel consumption71
– setting the units72
Average speed71
Avoid highways in
navigation136
Avoiding unintentional
alarms33
Axle loads, refer to
Weights241
B
Backrest contour, refer to
Lumbar support44
Backrests, refer to Seat
adjustment43
Backrest width adjustment44
Back seats
– refer to Rear seats46
Backup lamps
– replacing bulb225,226,227
Bag holder111
Band-aids, refer to First aid
pouch230
Bar, refer to Towing
methods233
Base plate for telephone or
mobile phone
– refer to Snap-in adapter186
– refer to Snap-in adapter in
the center armrest storage
compartment107
Bass, tone setting146
Battery228
– charging228
– disposal35,228
– jump-starting231
– remote control26
– replacing228
– temporary power failure228
Battery for mobile phone187
Battery renewal
– remote control35
– remote control for vehicle35
Being towed233
Belt hand-over49
– pinch protection system49
Belts, refer to Safety belts48Belt tensioner, refer to Safety
belts48
Beverage holders, refer to
Cupholders108
Blinds, refer to Roller sun
blinds106
Blower, refer to Air
volume100
Bluetooth, activating/
deactivating178
BMW
– car shampoo221
BMW Assist190
BMW Assist,
activating192,194
BMW Homepage4
BMW Maintenance
System217
BMW Search192
BMW webpage4
Bottle holders, refer to
Cupholders
108
Brake Assist, refer to Dynamic
Brake Control DBC82
Brake fluid, refer to Service
requirements73
Brake Force Display89
Brake lamps
– Brake Force Display89
– replacing bulb225,226,227
Brake pads118
– breaking in118
Brake rotors120
– brakes118
– breaking in118
Brakes
– ABS82
– BMW Maintenance
System217
– Brake Force Display89
– breaking in118
– parking brake56
– service requirements73
Brakes, refer to Braking
safely120Brake system118
– BMW Maintenance
System217
– breaking in118
– disc brakes120
Breakdown services, refer to
Roadside Assistance230
Breaking in the clutch118
Breaking in the differential,
refer to Engine and
differential118
Break-in period118
Brightness of the Control
Display80
Bulb changing, refer to Lamps
and bulbs223
Button for starting the engine,
refer to Start/stop button55
Buttons on the steering
wheel11C
California Proposition 65
warning5
Call
– accepting179
– ending180
– rejecting180
Calling, refer to Phone
numbers, dialing180
Can holders, refer to
Cupholders108
Capacities241
Capacity of the cargo area241
Car battery, refer to Vehicle
battery228
Car care, refer to Care219

Reference 251
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Configuring settings, refer to
Personal Profile26
Confirmation signals for
locking/unlocking the
vehicle29
Congestion
– refer to Route, bypassing
sections137
Connecting vacuum cleaner,
refer to Connecting
electrical appliances109
Consumption, refer to
Average consumption71
Consumption display
– average consumption71
Contacts
– creating188
Control Center, refer to
iDrive16
Control Display, refer to
iDrive16
– adjusting brightness80
– switching on/off19
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient loading in
Convertible28
Convenient operation
– glass roof28
– glass roof with Comfort
Access34
– retractable hardtop28
– windows28
– windows with Comfort
Access34
Convertible
– bag holder111
– Convenient loading28
– enlarging cargo area110
– folding down rear
backrest110
– retractable hardtop38
– rollover protection
system92
– securing cargo122
– stowing cargo121
Coolant215
– checking level215Coolant temperature70
Cooling, maximum99
Cooling fluid, refer to
Coolant215
Cooling system, refer to
Coolant215
Copyright2
Corner-illuminating lamps
– replacing bulbs224
Corner-illuminating lamps,
refer to Adaptive light
control94
Cornering lamps, refer to
Adaptive light control94
Correct tires210
Country codes DVD159
Courtesy lamps, refer to
Interior lamps97
Criteria for route136
Cross-hairs in navigation132
Cruise control61
– active63
– malfunction63
Cruising range70
Cupholders108
Curb weight, refer to
Weights241
Current playback
– external devices171
– of music collection166
Customer Relations193
D
Dashboard, refer to
Cockpit10
Dashboard, refer to
Instrument cluster12
Dashboard lighting, refer to
Instrument lighting96
Data, technical238
– capacities241
– dimensions239
– engine238
– weights241
Data transfer194
Date
– date format77
– setting76Daytime running lights94
– replacing bulbs224
DBC Dynamic Brake
Control82
Deactivating front passenger
airbags90
Deadlocking, refer to
Locking28
Defect
– door lock30
– fuel filler flap198
– glass roof37
Destination, entering by town/
city name127
Destination address
– entering127,133
Destination entry via BMW
Assist131
Destination for navigation
– entering by voice133
– entering via map132
– entry127
– home address130
– manual entry127
Destination guidance136
– bypassing a route
section137
– changing specified
route136
– continuing136
– starting136
– voice instructions137
– volume of voice
instructions138
Digital clock69
Digital compass105
Digital radio, refer to HD
Radio150
Dimensions239
Directional indicators, refer to
Turn signals59
Direction instructions, refer to
Voice instructions137
Directory for navigation, refer
to Address book
129
Displacement, refer to Engine
data238
Display, refer to iDrive
controls16