coolant reservoir BMW Z4 3.0SI ROADSTER 2007 E85 Owner's Manual

Under the hood
92
Important parts in the engine compartment
1Washer fluid reservoir for headlamp clean-
ing system and window washer system,
refer to page46
2Filler neck for engine oil, refer to Adding
engine oil3Jump-starting connection, refer to
page104
4Reservoir for brake fluid, refer to page95
5Body ground, negative terminal, refer to
page105
6Expansion tank for coolant, refer to page94
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 page93.
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.

Reference
At a glance
Controls
Driving tips
Mobility
95
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.
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.

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 hooks70
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 parked76
Condensation, removing from
windows
– air conditioning63
– automatic climate control66
Configuring settings, refer to
Vehicle Memory, Key
Memory18
Connecting vacuum cleaner,
refer to Connecting
electrical appliances71
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

Reference
At a glance
Controls
Driving tips
Mobility
125
Status of this Owner's Manual
at time of printing5
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 control19
– 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