2008 BMW 335I CONVERTIBLE Coolant tank

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.

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
228 Comply with the appropriate environ-
mental protection regulations when dis-
posing of coolant additives.<
Checking coolant level
1.Do not open the engine hood before the
engine has cooled down.
2.Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated
pressure to escape, then continue turning
to open.
3.The coolant level is correct if it is between
the maximum and minimum marks in the
filler neck, refer also to the diagram next to
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 reason for the coolant loss elimi-
nated as soon as possible.

Everything from A - Z
266 Summer tires, refer to Wheels
and tires212
Surface ice, refer to Outside
temperature warning74
"Surround Settings", refer to
Tone control162
Switches, refer to Cockpit10
Switching off
– engine60
Switching off the engine
– start/stop button59
Switching on
– audio160
– CD changer160
– CD player160
– radio160
Switching on the hour
signal82
Switching the cooling function
on and off107
Switch-on times of parked car
ventilation, preselecting108
Symbols4
– navigation system154
– status information20
– traffic info for navigation
system151
T
Tachometer74
Tail lamps233
– replacing bulb233
Tank contents, refer to
Capacities247
Technical data244
– capacities247
– dimensions245
Technical modifications, refer
to For your own safety5
Telematics, refer to
TeleService, BMW
Assist201
Telephone
– installation location, refer to
Center armrest114
– refer to separate Owner's
ManualTelephone, refer to Mobile
phone186
"Telephone list"54
TeleService203
Temperature
– automatic climate
control105
– changing unit of measure78
– coolant, refer to Coolant
temperature75
Temperature display
– outside temperature74
– outside temperature
warning74
– setting the units78
Tempomat, refer to Cruise
control66
Tensioning straps, refer to
Securing cargo128
"Terminate services"206
"Text language"86
"Theater" for Tone
control162
The individual vehicle5
Third brake lamp, refer to
Center brake lamp234
Through-loading opening with
integrated transport
bag120
Through-loading system117
Tilt alarm sensor36
Tilt function, passenger-side
mirror53
"Time"82
"Time / Date"82,83
"Time format"82
Timer, refer to Preselecting
switch-on times108
"Timer 2" for parked car
ventilation/heating109
"Timer 1" for parked car
ventilation/heating109
Tire inflation pressure212
– loss93,94
Tire pressure monitoring,
refer to Flat Tire Monitor92Tire Pressure Monitor
TPM93
– resetting the system94
– system limitations93
– warning lamp95
Tire puncture, refer to Flat Tire
Monitor93
Tire Quality Grading220
Tires
– age220,221
– air loss95
– breaking in124
– changing, refer to Changing
wheels234
– condition221
– damage221
– inflation pressure212
– labels220
– minimum tread depth221
– new wheels and tires222
– pressure monitoring, refer to
Flat Tire Monitor92
– pressure monitoring, refer to
Tire Pressure Monitor
TPM93
– puncture93
– replacing222
– Run-Flat222
– size220
– storage223
– tread depth221
– wear indicators, refer to
Minimum tread depth221
– wheel/tire combination, refer
to Correct wheels and
tires222
– winter tires223
TMC station, refer to Traffic
information151
"Tone"161
Tone in audio mode
– adjusting161
– middle setting163
Tools, refer to Onboard tool
kit231
Top, refer to Retractable
hardtop41
"Top 8" for mobile phone194