2006 BMW Z4 COUPE adding oil

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.

Under the hood
88 The warning lamp lights up in yellow
within 30 seconds after the engine is
started: The oil level sensor is defec-
tive:
It is not possible to issue a current or accurate
measurement. Have the system checked as
soon as possible.
Checking the 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.
You can have the oil level reading displayed in
the instrument cluster.
Press button1. The oil level is checked and dis-
played for approx. 15 seconds.
To exit the display sooner, press button 1 again.
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 1US quart/1liter of engine oil as soon
as possible, refer also to Adding engine oil.
4Oil level is too high.
Have the vehicle checked immedi-
ately, as excessive oil can damage the
engine.<
5The oil level sensor is defective:
it is not possible to issue a current or accu-
rate measurement.
Do not add engine oil. You can continue
your journey. Have the system checked as
soon as possible.

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

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