fuel cap BMW Z4 3.0I COUPE 2008 E86 Owner's Manual

Everything under control
48
Everything under control
Odometer
1Odometer
2Trip odometer
3Resetting trip odometer
4Outside temperature or computer dis-
plays
*
Trip odometer
Resetting trip odometer:
While the ignition is switched on, press button 3
in the instrument cluster until the trip odometer
is set to zero.
Outside temperature display, clock*
Setting the clock, refer to page50.
Outside temperature warning
If the outside temperature drops to approx.
377/+36, the computer automatically
switches to the outside temperature display.
A signal also sounds and the display flashes for
a short time. There is an increased risk of black
ice.
After an outside temperature warning has
been issued, the computer switches back
to its previous screen. You can have this acti-
vated/deactivated.<
Black ice can also form at temperatures
above 377/+36. You should therefore
drive carefully on bridges and shaded roads, for
example, otherwise there is an increased risk of
an accident.<
When the vehicle is parked
If you still want to view the time and odometer
reading briefly after the ignition has been
switched off or the key has been removed:
Press button 3 in the instrument cluster.
Tachometer
Never allow the engine to operate with the nee-
dle in the red overspeed sector of the gauge.
To protect the engine, the fuel supply is inter-
rupted when speed reaches this sector.
Fuel gauge
Fuel tank capacity: approx. 14.5 US gallons/
55 liters. You can find information on refueling
on page82.
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.

Refueling
82
Refueling
Always switch off the engine before refu-
eling. Otherwise the tank cannot be
refilled. The Service Engine Soon warning lamp
will come on.<
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.<
Gas cap
Opening
1.Open the fuel filler door, arrow 1.
2.Turn the gas cap counterclockwise.
3.Place the gas cap in the bracket attached to
the fuel filler door, arrow 2.
Closing
Fit the gas cap and turn it clockwise until you
clearly hear a click.
Do not jam the gas cap strap as this will
allow fuel vapors to escape.<
The warning lamp
* lights up briefly if
the gas cap is loose or missing. Close
the gas cap properly.
Manually releasing the fuel filler door
In the event of a malfunction you can unlock the
fuel filler door manually.1.Remove the cover for the right-hand rear
lamps in the cargo bay by turning the lock,
see arrow.
2.Pull the cargo bay trim panel slightly toward
the interior. The green button with the fuel
pump symbol becomes visible.
3.Undo the adhesive strip and pull off.
4.Pull the button. The fuel filler door is
released.
Pull on the button slowly and care-
fully; otherwise it could be torn off.<
Observe the following when refueling
When handling fuels, comply with all of
the applicable safety precautions posted
at the service station.<
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler
nozzle while filling the tank, as it could other-
wise lead to:
>Premature pump shutoff
>A reduced efficiency of the fuel-vapor
recovery system.

Reference
At a glance
Controls
Driving tips
Mobility
83
The fuel tank is full when the filler nozzle shuts
off the first time.
Fuel tank capacity
Approx. 14.5 US gallons/55 liters, including the
reserve capacity of approx. 2.1 US gallons/
8liters.
Do not drive until the fuel tank is empty.
Otherwise, the engine may not operate
properly and damage could result.<
Fuel specifications
Do not fill the tank with leaded fuel, as this
would cause permanent damage to the
catalytic converter.
Do not fill the tank with E85, i.e. fuel that con-
tains 85 % ethanol, nor with Flex Fuel, as this
would cause damage to the engine and fuel
supply system.<
Required fuel
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is 87.
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 fill the tank with gasoline below the
specified minimum grade; otherwise
engine damage could result.<
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 10 % ethanol or other
oxygenates with up to 2.8 % oxygen by weight,
that is, 15 % MTBE or 3 % methanol plus an
equivalent amount of co-solvent, 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 driveability 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.<

Reference
At a glance
Controls
Driving tips
Mobility
89
Correct wheels and tires
BMW recommends using only wheels
and tires that have been approved by
BMW for your particular vehicle model, other-
wise body contact and serious accidents can
result despite the use of the same nominal size,
e.g. due to manufacturing tolerances. If non-
approved wheels and tires are used, BMW can-
not evaluate their suitability, and therefore can-
not be held liable for driving safety.<
You can inquire about the correct wheel/tire
combination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS and DSC.
To maintain good handling and vehicle
response, only use tires of a single brand and
tread configuration. After a tire has been dam-
aged, for instance, mount the original wheel and
tire combination again as soon as possible.
Wheels with electronics for the Tire
Pressure Monitor TPM
When mounting new tires or changing from
summer to winter tires or vice versa, only use
wheels with TPMS electronics; otherwise the
Tire Pressure Monitor would not be able to
detect a flat tire, refer to page54. Your BMW
center will be glad to provide you with more
information.
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.
Run-Flat Tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, moreover, no spare wheel is
available. Your BMW BMW center will be glad to
provide you with more information.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired.<
Special characteristics of winter tires
BMW recommends the use of winter tires for
operation under winter road conditions. While
all-season tires with M+S designation provide
better winter traction than summer tires, they
generally do not achieve the full performance of
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
Store tires in a cool, dry place, protecting them
against light whenever possible. Protect the
tires from contact with oil, grease and fuel. Do
not exceed the maximum tire inflation pressure
indicated on the sidewall of the tire.
Swapping wheels between the axles
BMW advises against moving the front wheels
to the rear wheel positions and vice versa, as
this may impair vehicle handling characteristics.

Reference
At a glance
Controls
Driving tips
Mobility
97
Exhaust emission values
The warning lamp lights up: the
exhaust emission values have wors-
ened. Have the car checked as soon as
possible.
The lamps flash under certain conditions. This
indicates excessive misfiring of 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.
Canadian models display this warning
lamp.
The warning lamp lights up if the gas
cap is not properly tightened and the
OBD system can assume that fuel
vapor is escaping. If the gas cap is then tight-
ened, the warning lamp should go out within a
few days.
Event 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 subscription contract for BMW Assist,
certain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.
Care
Important information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.

Technical data
114
Capacities
Notes
Fuel tank US gal/liters approx. 14.5/55 Fuel specifications: page83
including reserve of US gal/liters approx. 2.1/8
Window washer system For details: page46
including headlamp washers US quarts/liters approx. 5.3/5.0
Cooling system including
heating circuitFor details: page94
>Manual transmission US quarts/liters 8.0/7.6
>Automatic transmission US quarts/liters 8.9/8.4

Everything from A to Z
118 Central locking
– from inside21
Central locking system19
Changes, technical, refer to
For your own safety5
Changing a wheel101
– Run-Flat Tires101
Charge indicator lamp12,102
Check gas cap, indicator
lamp13
Child-restraint mounting
system, LATCH38
Child-restraint systems37
Child seat, refer to Installing
child-restraint systems37
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter69
Cleaning the rear window,
refer to the Caring for your
vehicle brochure
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning the windows
– automatically, refer to Rain
sensor45
– reservoir capacity114
– spray nozzles46
– washer/wiper system45
– washer fluid46
– washer fluid reservoir46
Clock49
– 12h/24h mode50
– onboard computer50
– setting50
– setting, refer also to Owner's
Manual for Radio/Onboard
Computer
Clothes hooks71
Cockpit10
Cold start, refer to Starting the
engine40
Combination, wheel/tire88
Comfort area, refer to Around
the center console14Compact disc operation, refer
to Owner's Manual for
Radio/Onboard Computer
Computer50
– button BC50
– clock, 12h/24h mode50
– refer to Owner's Manual for
Onboard Computer
Computer, refer to the
separate Owner's Manual
Condensation, refer to When
the vehicle is parked77
Condensation, removing from
windows
– air conditioning63
– automatic climate control66
Configuring settings, refer to
Vehicle Memory, Key
Memory18
Connecting vacuum cleaner,
refer to Connecting
electrical appliances70
Consumption, refer to
Average fuel
consumption50
Consumption display, refer to
Fuel gauge48
Controls, refer to Cockpit10
Convenience operation
– convertible top20
– from outside20
– windows20
Convertible top25,27
– care, refer to the Caring for
your vehicle brochure
– convenience operation20
– electrical fault28
– emergency closing28
– fully automatic27
– malfunction28
– manual25
– mechanical25
Convertible top compartment
panel23
Coolant94
– checking level94
– indicator lamp13
– thermometer49
Coolant temperature49Coolant water, refer to
Coolant94
Cooling
– maximum66
– refer to Switching cooling
function on/off63,66
Cooling fluid, refer to
Coolant94
Cooling function
– air conditioning63
– automatic climate control66
Cooling system, refer to
Capacities114
Cooling system, refer to
Coolant94
Copyright2
Correct tires89
Cruise control46
Cruising range50
Cup holders, refer to
Beverage holders69
Curb weight, refer to
Weights113
Cylinders, refer to Engine
data110
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting60
Data, technical
– capacities114
– dimensions111,112
– engine110
– measurements111,112
– weights113
Daytime running lamps59
DBC Dynamic Brake
Control51
– indicator/warning lamp13
Deadlocking, refer to
Locking19
Defective bulb59
Defrosting, windows63,66
Defrosting the windshield,
refer to Defrosting
windows63,66

Everything from A to Z
120 Equipment scope, refer to the
Service and Warranty
Information Booklet for US
models, Warranty and
Service Guide Booklet
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control51
Event Data Recorders97
Exhaust system, refer to Hot
exhaust system75
Exterior mirrors34
– adjusting34
– automatic dimming
feature34
– automatic heating34
– folding in and out34
External audio device68
Eyeglasses compartment69
Eyes, tow-starting and towing
away105
F
False alarm
– refer to Avoiding
unintentional alarms24
– refer to Switching off an
alarm24
Fasten safety belts, refer to
Safety belts33
Filter
– refer to Microfilter64
– refer to Microfilter/activated-
charcoal filter67
Fine wood, refer to the Caring
for your vehicle brochure
First aid, refer to First-aid
kit104
First-aid kit104
Flat tire
– Flat Tire Monitor53
– refer to Changing a
wheel101
– refer to Tire condition87
– Run-Flat Tires88
– Tire Pressure Monitor54Flat Tire Monitor FTM53
– flat tire warning53
– indicator/warning lamp53
– initializing the system53
– snow chains90
– system limits53
Floods, refer to Driving
through water76
Floor covers, carpets, refer to
the Caring for your vehicle
brochure
Floor mats, refer to the Caring
for your vehicle brochure
Fog lamps60
– indicator lamp13
Footbrake, refer to Braking
safely76
For your own safety5
Front airbags56
FTM, refer to Flat Tire
Monitor53
Fuel
– average consumption50
– capacity, refer to
Capacities114
– display48
– quality83
– refer to Average fuel
consumption50
– refer to Fuel
specifications83
– tank capacity83
Fuel display, refer to Fuel
gauge48
Fuel filler door, refer to Gas
cap82
Fuel level
– refer to Fuel tank capacity83
Fuel tank capacity, refer to
Capacities114
Fully automatic convertible
top
27
Fuses102
G
Gas cap82
Gasoline, refer to Fuel
specifications83Gasoline gauge, refer to Fuel
gauge48
Gear indicator, automatic
transmission with
Steptronic42
Gear lever
– automatic transmission with
Steptronic42
– manual transmission42
Gearshifts
– automatic transmission with
Steptronic42
– manual transmission42
Glove compartment68
Gross weight, refer to
Weights113
H
Halogen lamps
– replacing bulbs99
Handbrake, refer to Parking
brake41
Hands-free microphone71
Hardtop, refer to the separate
Owner's Manual
Hardtop preparation78
Hazard warning flashers14
Headlamp control,
automatic59
Headlamp flasher44
– indicator lamp12
Headlamps
– bulb replacement99
– care, refer to the Caring for
your vehicle brochure
– cleaning45
– cleaning system, washer
fluid46
– cover99
– glass, care, refer to the
Caring for your vehicle
brochure
– washer reservoir, refer to
Washer fluid reservoir46
– washer reservoir volume,
refer to Capacities114

Reference
At a glance
Controls
Driving tips
Mobility
125
Steering wheel10
– adjusting35
– buttons on steering
wheel11
– lock40
Steptronic, refer to Sport
program and Manual
operation43
Storage compartments68
–
eyeglasses
compartment69
– glove compartment68
Storage nets69
Storage space
– refer to Cargo bay23
– refer to Storage
compartments68
Storing seat position, refer to
Seat memory32
Stowage, refer to Storage
compartments68
Summer tires, refer to Wheels
and tires84
Supply reservoir, refer to
Washer fluid reservoir46
Switches, refer to Cockpit10
Switch for passenger
airbags36
Switching cooling function on/
off manually63,66
Symbols4
T
Table of contents3
Tachometer48
Tailgate21
– emergency operation22
– indicator lamp13
– opening from inside the
vehicle21
– opening from the outside21
– opening manually22
– remote control20
– roller-blind cover70
Tail lamps, refer to Rear
lamps101Tail lights, refer to Rear
lamps101
Tank contents
– refer to Capacities114
Tank indicator, refer to Fuel
gauge48
Technical data110
Technical modifications, refer
to For your own safety5
Telephone, refer to the
separate Owner's Manual
Telephone preparation
package71
Temperature
– air conditioning63
– automatic climate control66
– coolant, refer to Coolant
thermometer49
– engine49
Temperature display
– outside temperature48
– outside temperature
warning48
– setting unit of measure50
Tempomat, refer to Cruise
control46
Third brake lamp, refer to
Center high-mount brake
lamp101
Three-point safety belt, refer
to Safety belts33
Tilt alarm sensor24
Tilt function, passenger-side
mirror34
Tire, flat53,55
– Flat Tire Monitor53
– indicator/warning lamp13
– Run-Flat Tires88
– Tire Pressure Monitor54
Tire inflation pressure84
– checking84
– loss53,54
– restoring84
Tire pressure monitoring,
refer to
– Flat Tire Monitor53
– Tire Pressure Monitor
54Tire Pressure Monitor
TPM54
– indicator/warning lamp55
– resetting the system54
– system limits54
Tire Quality Grading86
Tire renewal88
Tires
– age86,88
– break-in procedures74
– changing88
– coding86
– condition87
– damage88
– DOT quality grades86
– flat53,55
– inflation pressure84
– pressure monitoring, refer to
Flat Tire Monitor53
– replacement88
– size84
– storage89
– temperature87
– traction87
– tread87
– tread wear87
– Uniform Tire Quality
Grading86
– wear indicators, refer to
Minimum tread depth87
– wheel and tire
replacement88
– winter tires89
– with emergency features,
refer to Run-Flat Tires88
Tire storage89
Tool kit, refer to Onboard tool
kit98
Torque, refer to Engine
data110
Tow bar106
Tow fitting
– screw thread106
Towing eyelet105
Towing the vehicle105
– methods106
– with automatic
transmission106
Tow rope106

Everything from A to Z
126 Tow-starting106
Tow truck106
TPM Tire Pressure
Monitor54
Track width, refer to
Dimensions111,112
Traction control, refer to
Dynamic Stability Control
DSC51
Transmission
– automatic transmission with
Steptronic42
– manual transmission42
Transmission detent, refer to
Range selection42
Transmission malfunction,
refer to Malfunction43
Transporting children
safely36
Transport securing device,
refer to Cargo loading77
Tread depth, refer to Minimum
tread depth87
Trip distance recorder, refer to
Trip odometer48
Triple turn signal44
Trip meter, refer to Trip
odometer48
Trip odometer48
Turning circle, refer to
Dimensions111,112
Turn signal indicators44
– bulb replacement100
– indicator lamp12,13
Turn signals
– triple turn signal44
TV function, refer to Owner's
Manual for Onboard
Computer
Tying down loads, refer to
Cargo loading77
U
Undercoating, refer to the
Caring for your vehicle
brochure
Uniform Tire Quality Grading/
UTQR86Units
– average consumption50
– average speed50
– temperature50
– time50
Units of measure
– outside temperature
display50
– time format50
Unlatching, refer to
Unlocking19
Unlocking
– from inside21
– from outside19
– luggage compartment
lid20,22
– tailgate20,21
Used batteries, refer to
Battery disposal102
V
Vehicle
– battery102
– break-in period74
– care, refer to the Caring for
your vehicle brochure
– cargo loading77
– car wash, refer to the Caring
for your vehicle brochure
– dimensions, refer to
Dimensions111,112
– engine41
– leaving the vehicle41
– parked77
– placing in storage, refer to
the Caring for your vehicle
brochure
– weight113
Vehicle Memory18
Ventilation63,67
– air conditioning63
– automatic climate control67
– draft-free63,67
Vents, refer to
Ventilation63,67
Viscosity94Volume
– fuel tank, refer to
Capacities114
W
Warning and indicator
lamps12
Warning triangle104
Warranty, refer to Service and
Warranty Information
Booklet for US models,
Warranty and Service Guide
Booklet for Canadian
models96
Warranty and service6
Washer/wiper system45
Washer fluid reservoir46
Washer fluids46
Washer reservoir, refer to
Washer fluid reservoir46
Washing systems46
Waste tray, refer to Ashtray69
Water on roads, refer to
Driving through water76
Wear indicator in tires, refer to
Minimum tread depth87
Weights113
Wheel/tire combination, refer
to Correct wheels and
tires89
Wheelbase, refer to
Dimensions111,112
Wheels and tires84
Width, refer to
Dimensions111,112
Wind deflector70
Window defrosting, refer to
Defrosting windows
– automatic climate control66
– heating and ventilation63
Windows24
– convenience operation20
– opening/closing25
– pinch protection system25
– power supply interruption25