2008 BMW 335I CONVERTIBLE engine oil

Notes
6 to the vehicle, compromise its safety, interfere
with the vehicle's electrical system or affect the
validity of the BMW Limited Warranty. See your
BMW center for additional information.<
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<
California Proposition 65 warning
California law requires us to issue the following
warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior fur-
nishings in a vehicle, contain or emit chemicals
known to the State of California to cause cancer
and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
Battery posts, terminals and related accesso-
ries contain lead and lead compounds. Wash
your hands after handling.
Used engine oil contains chemicals that have
caused cancer in laboratory animals. Always
protect your skin by washing thoroughly with
soap and water.<
Service and warranty
We recommend that you read this publication
thoroughly.
Your BMW is covered by the following warran-
ties:
>New Vehicle Limited Warranty
>Rust Perforation Limited Warranty
>Federal Emissions System Defect Warranty
>Federal Emissions Performance Warranty
>California Emission Control System Limited
Warranty
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.
Reporting safety defects
For US customers
The following only applies to vehicles owned
and operated in the US.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration,
NHTSA, in addition to notifying BMW of North
America, LLC, P.O. Box 1227, Westwood, New
Jersey 07675-1227, Telephone 1-800-831-
1117.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However,
NHTSA cannot become involved in individual
problems between you, your dealer, or BMW of
North America, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to
http://www.safercar.gov; or write to: Adminis-
trator, NHTSA, 400 Seventh Street, SW.,
Washington, DC 20590. You can also obtain
other information about motor vehicle safety
from http://www.safercar.gov

Cockpit
12
Instrument cluster
1Speedometer
2Indicator lamps for turn signals
3Indicator and warning lamps13
4Displays for active cruise control
*67
5Tachometer74
6Engine oil temperature75
7Display for
>Clock74
>Outside temperature74
>Indicator and warning lamps838Display for
>Position of automatic transmission
*61
>Computer75
>Date of next scheduled service, and
remaining distance to be driven79
>Odometer and trip odometer74
>Checking engine oil level
*225
>Settings and information78
> There is a Check Control
message83
9Fuel gauge75
10Resetting the trip odometer74

Controls
75Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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 page228.
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. 15.9 US gallons/
60 liters.
You can find information on refueling on
page210.
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 page78.
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.

Everything under control
78
Settings and information
Operating principle
1Button for:
>Selecting display
>Setting values
2Button for:
>Confirming selected display or set val-
ues
>Calling up computer information753When the lights are on: instrument lighting
brightness103
4Calling up Check Control83
5Checking engine oil level225
6Setting the time81
7Setting the date83
8Viewing service requirement display79
Exiting displays
The outside-temperature reading and the time
reappear when you press button2 or if you
make no entries within approx. 15 seconds. If
required, complete the current setting first.
Units of measure
You can set units of measure.
iDrive, for operating principle refer to page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.4.Select "Language / Units" and press the
controller.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Units" is selected and press the con-
troller.

Everything under control
80 3Engine oil
4Roadworthiness test
*
5Front brake pads
6Rear brake pads7Brake fluid
The sequence of displayed service items may
vary. The data for the next service appointment
is shown first.
Supplementary information
You can have further information on the scope
of maintenance displayed on the Control Dis-
play, refer to page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Info sources" and press the control-
ler.
4.Select "Service Info" and press the control-
ler.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Service requirements" is selected and
press the controller.
6.If necessary, move the highlight marker to
the second field from the top. Turn the con-
troller until "Status" is selected and press
the controller.
A list of selected maintenance operations and, if
applicable, inspections required by law is dis-
played.You can request more detailed information on
every entry:
Select the entry and press the controller.
To exit from the menu:
Select the arrow and press the controller.
Symbols
No service is currently required.
The deadline for service or a legally man-
dated inspection is approaching. Please
schedule a service appointment.
The service deadline has already passed.
Entering deadlines for legally required
inspections*
Make sure the date on the Control Display is
always set correctly, refer to page83, otherwise
the effectiveness of CBS Condition Based Ser-
vice is not ensured.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Info sources" and press the control-
ler.
4.Select "Service Info" and press the control-
ler.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller

Mobility
225Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Important parts of the engine compartment
1Expansion tank for coolant, refer to
page227
2Washer fluid filler neck for headlamp clean-
ing system and window washer system,
refer to page653Jump-starting connection, refer to
page237
4Filler neck for engine oil, refer to Adding
engine oil
Engine oil
The engine oil consumption is dependent on
driving style and driving conditions.
Checking oil level
Your car is equipped with an electronic oil-level
monitor.
For a precise measurement and display of the
oil level, it is necessary that the engine be at
operating temperature, i.e. after uninterrupted
driving for at least approx. 6.5 miles/10 km. You
can have the oil level displayed while you are
driving, or while the vehicle is at a standstill on a
level surface and the engine is running.
Display in the instrument cluster
1.Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol is shown in the display, accompa-
nied by the word "OIL".
2.Press button 2 in the turn indicator lever.
The oil level is checked and the reading dis-
played.

Under the hood
226
Possible displays
1Oil level OK
2Oil level is being checked.
This can take about 3 minutes if the car is at
a standstill on a level surface, or about
5 minutes while the car is on the move.
3Oil level down to minimum:
Add engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil on page227.
4Oil level is too high.
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
5The oil level sensor is defective.
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page79. Have the system checked as
soon as possible.
Display via iDrive
iDrive, for operating principle refer to page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.3.Select "Info sources" and press the control-
ler.
4.Select "Service Info" and press the control-
ler.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Service requirements" is selected and
press the controller.
6.If necessary, move the highlight marker to
the second field from the top. Turn the con-
troller until "Engine oil level" is selected and
press the controller. The oil level is dis-
played.
Possible messages
>"Engine oil level O.K."
>"No measurement available: Updating
engine oil level measurement..."
The engine oil level is measured. This can
take about 3 minutes if the car is at a stand-
still on a level surface and the engine is run-
ning, and about 5 minutes while the car is on
the move.
>"Oil level at the minimum! Refill with 1 quart
of engine oil."
Add engine oil as soon as possible, but no

Mobility
227Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
more than 1 US quart/1 liter, refer also to
Adding engine oil below.
>"Engine oil level too high"
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
>"Please observe recalculated service inter-
val for engine oil"
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page79. Have the system checked as
soon as possible.
Adding engine oil
Do not add 1 US quart/1 liter of engine oil until a
corresponding message is shown on the Con-
trol Display.
Add oil within the next 125 miles/200 km,
otherwise the engine could be dam-
aged.<
Keep oils, greases, etc. out of the reach of
children and comply with the relevant
warnings on the containers. Otherwise, health
hazards may result.<
Oil change
Have oil changed only at your BMW center or at
a workshop that works according to BMW
repair procedures with correspondingly trained
personnel.
Specified engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-cific oils after confirming their suitability for use
in its vehicles with extensive testing.
Do not use oil additives as these may
cause engine damage.<
Only use approved BMW High Performance
Synthetic Oil.
If BMW High Performance Synthetic Oil is not
available, you can add small quantities of other
synthetic oils in between oil changes. Only use
oils with the API SM specification or higher.
Your BMW center will be glad to answer
any questions regarding BMW High Per-
formance Synthetic Oil or approved synthetic
oils.<
You can also call BMW of North America at
1-800-831-1117 or visit the website
www.bmwusa.com to obtain this information.
Viscosity ratings
Viscosity is a measure of an oil's flow rating and
is categorized in SAE classes.
Selecting the appropriate SAE class depends
on the regional climatic conditions in which you
normally drive your BMW.
Approved oils belong to the 5W-40 and
5W-30 classes.<
These oils can be used for driving at all outside
temperatures.
Coolant
Do not add coolant to the cooling system
when the engine is hot. Escaping coolant
can cause burns.<
Coolant consists of half water and half additive.
Not all commercially available additives are suit-
able for your BMW. Ask your BMW center for
suitable additives.
Only use suitable additives, otherwise
engine damage may result. Because
additives are harmful to your health, it is impor-
tant to follow the instructions on the contain-
ers.<