2006 BMW Z4 COUPE coolant level

Cockpit
12
Instrument cluster
1Speedometer
2Indicator lamps for turn signals
3Indicator and warning lamps12
4Tachometer46
with indicator and warning lamps12
5Engine coolant temperature gauge47
6Fuel gauge46
7Button for
>Displaying the clock47
>Service interval display47
>Checking the oil level88
8Position of automatic transmission
*40
9Button for
>Resetting trip odometer46
>Setting the clock47
10Display for
>Trip odometer/Odometer46
>Clock47
>Service interval47
>Computer
*48
>Checking the oil level88
Indicator and warning lamps
Technology that monitors itself
Indicator and warning lamps that are identified
by
+ are tested for proper functioning whenever
the key is turned. They each light up once for
different periods of time.
If a malfunction occurs in one of the monitored
systems, the corresponding lamp does not go
out after the engine has started, or it lights up
again while the vehicle is in motion. You can find
more information about each system on the
specified pages.
Turn signal indicators42
Battery charge current
+97
Headlamp flasher/High beams42, 56
Engine oil pressure/
Engine oil level
+87
Antilock Brake System ABS/Driving
stability control systems
+49

Reference
At a glance
Controls
Driving tips
Mobility
47
Reserve
Once the fuel level has fallen to the reserve
zone of approx. 2.1 US gallons/8 liters, indicator
lamp 1 lights up continuously.
Do not drive until the fuel tank is empty
and refill it well in advance. Otherwise the
engine may not operate properly and damage
could result.<
When you switch on the ignition, the indicator
lamp comes on briefly to indicate an operational
check.
Engine coolant temperature
gauge
Blue
The engine is still cold. Drive at moderate
engine and vehicle speeds.
Between the blue and red zones
Normal operating range. The needle may rise as
far as the edge of the red sector during normal
operation.
Red
When you switch on the ignition, warning
lamp1 comes on briefly to indicate an opera-
tional check.
Comes on while driving:
The engine has overheated. Stop and switch
the engine off immediately and allow it to cool
down.
For checking the coolant level, refer to page89.
Service interval display
The remaining driving distance in miles/km until
the next scheduled service is displayed briefly
immediately after you start the engine or switch
on the ignition.
The words OILSERVICE or INSPECTION indi-
cate the type of service due next. The computer
bases its calculations of the remaining driving
distance on the preceding driving style.
A flashing message and a minus sign in front of
the number mean that the service interval has
already been exceeded by the number of miles/
kilometers shown on the display. Please sched-
ule an appointment with your BMW Center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel.
The extent of service work required can
be read out from the remote control by
your BMW Service Advisor.<
Clock
If you wish to have a permanent time display,
you can have it appear in the car radio display,
refer to the Owner's Manual for Radio.
You can set the time and the time display in the
car radio as follows.

Reference
At a glance
Controls
Driving tips
Mobility
87
Important parts in the engine compartment
1Washer fluid reservoir for headlamp clean-
ing system and window washer system,
refer to page44
2Filler neck for engine oil, refer to Adding
engine oil3Jump-starting connection, refer to page99
4Reservoir for brake fluid, refer to page90
5Body ground, negative terminal, refer to
page100
6Expansion tank for coolant, refer to page89
Engine oil
Oil consumption is directly influenced by your
driving style and vehicle operating conditions.
Warning lamp
Engine oil pressure
The warning lamp lights up in red:
The engine oil pressure is too low.
Stop the vehicle immediately and
switch off the engine. Check the engine oil level
and top up if necessary. If the oil level is correct,
please contact your nearest BMW Center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel.Do not continue driving, otherwise the
engine could sustain serious damage
from inadequate lubrication.<
Engine oil level
The warning lamp lights up in yellow
while you are driving. In addition, a sig-
nal sounds and "+1.0" appears in the
instrument cluster, refer to page88.
The oil level is at the absolute minimum; refill as
soon as possible. Do not drive more than
125 miles/200 km before refilling.
The warning lamp comes on in yellow
after the engine is switched off. A signal
also sounds.
Add engine oil at the earliest opportunity, e.g.
when you stop to refuel.

Reference
At a glance
Controls
Driving tips
Mobility
89
Adding engine oil
Do not add the maximum amount of 1 US quart/
1 liter of engine oil until the warning lamp lights
up in the instrument cluster, refer to page87, or
until the oil level monitor shows "+1.0".
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 warnings on
the containers. Otherwise, health hazards may
result.<
Oil change
Have your oil changed only by a BMW Center or
a workshop that works according to BMW
requirements with the appropriately trained
personnel.
Approved engine oils
The quality of the engine oil is extremely impor-
tant for the function and life of an engine. BMW
continuously approves specific oils after con-
firming their suitability for use in its vehicles
with extensive testing.
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 SH specification or higher.
Your BMW Center will be glad to answer
any questions regarding BMW High Per-
formance Synthetic Oil or other approved syn-
thetic oils. 1-800-831-1117 or visit the website
www.bmwusa.com to obtain this information.
Do not use any oil additives, as they could
cause engine damage under some cir-
cumstances.<
Viscosity classes
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
Warning lamp
The warning lamp lights up:
The coolant level is too low. Top up the
coolant as soon as possible.
Do not open the cooling system when the
engine is hot. If you do, escaping coolant
can cause burns.<
Coolant consists of water and coolant additives.
Not all commercially available additives are suit-
able for your BMW. Your BMW Center knows
which additives are appropriate.
Only use approved additives, otherwise
the engine could be damaged. The addi-
tives are hazardous to health.<
Comply with the appropriate environ-
mental protection regulations when dis-
posing of coolant additives.<
Checking the coolant level
1.The engine must be at ambient tempera-
ture.
2.Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated

Under the hood
90 pressure to escape, then continue turning
to open.
3.The coolant level is correct if the upper end
of the red float spindle is at least at the same
level as the upper edge of the filler neck but
no more than 3/4 in or 2 cm above it, i.e. up
to the mark on the float spindle. 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.Twist the cap back on and tighten it firmly.
6.Have the cause for the coolant loss
removed as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up although
the parking brake is not engaged:
Stop the vehicle immediately.
The brake fluid level in the reservoir is too low.
At the same time, you may notice that brake
pedal travel is longer. Have the system checked
as soon as possible.
If you continue driving, extended brake
pedal travel may be necessary and brak-
ing distances may be significantly longer. Be
sure to adapt your driving style accordingly.<
Canadian models display this warning
lamp.
Brake pads
The warning lamp lights up. The brake
pads have worn down to the minimum
safe limit. Have the brake pads
replaced as soon as possible.
For your own safety: only use brake pads
which BMW has approved for your spe-
cific vehicle model. BMW cannot evaluate non-
approved brake pads to determine if they are
suitable for use, and therefore cannot guaran-
tee the operating safety of the vehicle in the
event of their use.<

Everything from A to Z
114 Changes, technical, refer to
For your own safety5
Changing a wheel96
– Run-Flat Tires96
Charge indicator lamp12,97
Check gas cap, indicator
lamp13
Child-restraint mounting
system, LATCH37
Child-restraint systems36
Child seat, refer to Installing
child-restraint systems36
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter65
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
sensor43
– reservoir capacity110
– spray nozzles44
– washer/wiper system43
– washer fluid44
– washer fluid reservoir44
Clock47
– 12h/24h mode48
– onboard computer48
– setting48
– setting, refer also to Owner's
Manual for Radio/Onboard
Computer
Clothes hooks66
Cockpit10
Cold start, refer to Starting the
engine38
Comfort area, refer to Around
the center console14
Compact disc operation, refer
to Owner's Manual for
Radio/Onboard ComputerComputer48
– button BC48
– clock, 12h/24h mode48
– refer to Owner's Manual for
Onboard Computer
Computer, refer to the
separate Owner's Manual
Condensation, refer to When
the vehicle is parked72
Condensation, removing from
windows
– air conditioning59
– automatic climate control62
Configuring settings, refer to
Vehicle Memory, Key
Memory18
Connecting vacuum cleaner,
refer to Connecting
electrical appliances67
Consumption, refer to
Average fuel
consumption48
Consumption display, refer to
Fuel gauge46
Controls, refer to Cockpit10
Convenience operation
– convertible top20
– from outside20
– windows20
Convertible top26,27
– care, refer to the Caring for
your vehicle brochure
– convenience operation20
– electrical fault28
– emergency closing28
– fully automatic27
– malfunction28
– manual26
– mechanical26
Convertible top compartment
panel23
Coolant89
– checking level89
– indicator lamp13
– thermometer47
Coolant water, refer to
Coolant89Cooling
– maximum62
– refer to Switching cooling
function on/off59,62
Cooling fluid, refer to
Coolant89
Cooling function
– air conditioning59
– automatic climate control62
Cooling system, refer to
Capacities110
Copyright2
Correct tires84
Cruise control44
Cruising range48
Cup holders, refer to
Beverage holders65
Curb weight, refer to
Weights109
Cylinders, refer to Engine
data106D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting56
Data, technical
– capacities110
– dimensions107,108
– engine106
– measurements107,108
– weights109
Daytime running light55
DBC Dynamic Brake
Control49
– indicator/warning lamp13
Deadlocking, refer to
Locking19
Defective bulb55
Defrosting, windows59,62
Defrosting the windshield,
refer to Defrosting
windows59,62
Defrosting windows and
removing condensation
– air conditioning59
– automatic climate control62

Reference
At a glance
Controls
Driving tips
Mobility
115
Defrost position, refer to
Defrosting windows59,62
Dehumidifying air, refer to
Switching cooling function
on/off59,62
Digital clock47
Dimensions107,108
Dimming mirrors71
Directional indicators, refer to
Turn signal indicators42
Disc brakes72
Displacement, refer to Engine
data106
Display elements, refer to
Instrument cluster12
Display lighting, refer to
Instrument lighting56
Displays, refer to Instrument
cluster12
Displays and controls10
Disposal
– coolant89
– vehicle battery97
Distance remaining, refer to
Cruising range48
Door keys, refer to The key
set18
Door lock20
Doors, unlocking and locking
– acknowledgment
signals19,20
– from inside21
– from outside19
DOT quality grades82
Draft-free ventilation59,63
Drive-off assistant50
Driving Dynamic Control42
Driving light, refer to Parking
lamps/Low beams55
Driving notes70
Driving stability control
systems49
Driving through water71
Driving tips, refer to Driving
notes70
Dry air, refer to Switching
cooling function on/
off59,62DSC Dynamic Stability
Control49
– indicator/warning lamp49
– indicator lamp13
DTC Dynamic Traction
Control49
– indicator/warning
lamp13
,50
Dynamic Brake Control
DBC49
– indicator/warning lamp13
Dynamic Stability Control
DSC49
– indicator/warning lamp49
Dynamic Traction Control
DTC49
– indicator/warning lamp50
E
EBV Electronic brake-force
distribution49
Electric
– seat adjustment31
Electrical malfunction
– automatic transmission with
Steptronic41
– convertible top28
– door lock20
– fuel filler door78
– luggage compartment lid22
– storage compartments64
– tailgate22
Electric Power Steering
EPS52
– indicator/warning
lamp13,52
Electric power windows25
– power loss25
Electronic
– brake-force distribution49
– oil level check88
Emergency call98
– button98
Emergency operation, refer to
Opening manually
– tailgate22
Emergency services, refer to
Roadside Assistance98Engine38
– break-in period70
– electronics13
– indicator lamp13
– overheated, refer to Coolant
thermometer47
– speed46
– starting38
– switching off39
– temperature47
Engine compartment87
Engine coolant, refer to
Coolant89
Engine oil87
– adding89
– additives, refer to Approved
engine oils89
– alternative oil grades89
– approved engine oils89
– capacity110
– change intervals, refer to
Service and Warranty
Information Booklet for US
models, Warranty and
Service Guide Booklet for
Canadian models
– change intervals, refer to
Service interval display47
– checking level88
– indicator/warning lamp12
– oil level87
– pressure
87
Engine output, refer to Engine
data106
Engine starting, refer to
Starting the engine38
EPS Electric Power
Steering52
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
Control49
Exhaust system, refer to Hot
exhaust system70

Reference
At a glance
Controls
Driving tips
Mobility
117
Height adjustment
– seats31
– steering wheel34
High beams56
– bulb replacement94
– headlamp flasher42
– indicator lamp12
High temperatures70
Holders for beverages65
Homepage BMW4
Hood86
Horn10
Hot exhaust system70
Hydraulic Brake Assistant,
refer to Dynamic Brake
Control DBC49
Hydraulics, brake90
Hydroplaning71
I
Ice warning, refer to Outside
temperature warning46
Identification mark
– Run-Flat Tires84
– tire coding82
– tires84,85
Ignition, refer to Ignition
switched on38
Ignition key positions, refer to
Ignition lock38
Ignition keys, refer to The key
set18
Ignition lock38
Imprint2
Inclines71Indicator/warning lamp12
– airbags54
– alarm system24
– automatic transmission with
Steptronic41
– brakes13
– coolant temperature47
– DSC49
– DTC50
– engine oil level87
– engine oil pressure87
– engine temperature47
– fasten safety belts33
– Flat Tire Monitor51
– passenger airbags36
– reserve46
Indicator and warning lamps,
overview12
Individual vehicle
– equipment, refer to Your
individual vehicle5
Inflation pressure, refer to Tire
inflation pressure80
Inflation pressure monitoring,
refer to
– Flat Tire Monitor51
– Tire inflation pressure80
Initializing
– Flat Tire Monitor FTM51
– windows25
Inspection47
Instrument cluster12
Instrument lighting56
Instrument panel, refer to
Cockpit10
Instrument panel, refer to
Instrument cluster12
Interior lamps56
– remote control19
Interior motion sensor24
Interior rearview mirror34
– automatic dimming
feature
71
Interior temperature
adjusting59,62
Interlock, refer to Steering
locked38,40
Intermittent
– operation of the wipers43Interval
– display, service47
J
Jack96
Jacking points97
Jets, refer to
Ventilation59,63
Jump-starting99
K
Key Memory18
Keys18
Keys, refer to The key set18
Key switch for passenger
airbags35
Kickdown41
Knee airbags52
Knock control79
L
Lamps55
Lamps and bulbs93
LATCH, child-restraint
mounting system37
Leather care, refer to the
Caring for your vehicle
brochure
LEDs Light-emitting
diodes93
Length, refer to
Dimensions107,108
License plate lamps, bulb
replacement96
Light-alloy wheels, care, refer
to the Caring for your vehicle
brochure
Light-emitting diodes
LEDs93
Lighter socket, refer to
Cigarette lighter65
Lighting
– instruments56
– lamps and bulbs93
– vehicle, refer to Lamps55