2004 BMW Z4 2.5I clutch

Driving
36
Driving
Ignition lock
0 Steering locked
This is the only position in which the igni-
tion key can be inserted or removed.
After removing the key, turn the steering
wheel slightly to the left or right until the
lock engages.
If the key is not removed, an acoustic signal
sounds when the driver's door is opened.
Vehicles with automatic transmission:
do not move the selector lever from
position P until the engine is running.<
Interlock
In order to turn the key back to position 0 or
to remove it, move the selector level into
position P first.
1 Steering unlocked
You will find that it is often easier to turn the
ignition key from position 0 to 1 if you move
the steering wheel slightly to help disen-
gage the detent.
Individual electrical equipment and acces-
sories are available for use.
2 Ignition switched on
All systems are operational.
3 Engine started
Engine
Do not allow the engine to warm up while
the vehicle is stationary. Instead, begin
driving immediately at a moderate engine
speed.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at start-up are normal and should
decrease as the engine warms up. If engine
speed does not decrease, service is
required.
To prevent the battery from discharging,
always deactivate electrical devices that
are not in use. Switch the ignition off when
the vehicle is not being driven.
Do not allow the engine to run in
enclosed spaces. The exhaust gases
contain carbon monoxide, an odorless and
colorless, but highly toxic gas. Breathing
the exhaust gases poses an extreme health
risk, and can lead to unconsciousness and
death.
Do not leave the vehicle unattended with
the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.
When driving, standing at idle and parking
the vehicle, take care to avoid contact
between the hot exhaust system and flam-
mable materials, e.g. hay, leaves, grass,
etc. Such contact could lead to a fire,
resulting in serious personal injury and
property damage.<
Starting the engine
Do not press the accelerator pedal while
starting the engine.
Vehicles with manual transmission:
Step on the clutch when starting the
vehicle. A lockout prevents the engine from
starting if the clutch is not depressed.<
Do not actuate the starter for too
short a time, but do not actuate it for
more than approx. 20 seconds. Release

Reference
At a glance
Controls
Driving tips
Mobility
37
the ignition key immediately when the
engine starts.<
Extended starting attempts, charac-
terized by excessively frequent or
long periods with the starter engaged, can
damage the catalytic converter.<
If the engine fails to start on the first
attempt, for instance if it is very hot or cold:
>Press the accelerator pedal halfway
down.
Cold starts at very low temperatures, start-
ing at approx. 57/–156:
>Press the accelerator pedal halfway
down.
>On the first start attempt, engage the
starter for a longer period, approx.
10 seconds.
Manual transmission
1.Engage the parking brake
2.Gearshift lever in idling position
3.Depress clutch pedal
4.Start the engine.
Automatic transmission
1.Depress footbrake
2.Place selector lever in position P or N
3.Start the engine.
Before leaving the vehicle with the
engine running, place the selector
lever in position P and pull the parking
brake.
Do not leave the vehicle unattended with
the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.<
Sequential manual gearbox SMG
1.Depress footbrake
2.Move selector lever to neutral
position N
3.Start the engine.
If the engine does not start, re-
engage the gear last selected, refer to
the display in the instrument cluster, and move the selector lever to neutral position
N again.<
Before leaving the vehicle with the
engine running, place the selector
lever in position N and pull the parking
brake.
Do not leave the vehicle unattended with
the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.<
Switching off the engine
Do not remove the ignition key while
the vehicle is still moving. If you did
so, the steering lock would engage when
the steering wheel is turned.
When you leave the vehicle, always remove
the ignition key and engage the steering
lock.
Always engage the parking brake when
parking on downhill roads.<
You can have an acoustic signal set
as a reminder that the ignition key is
still in the ignition switch after the driver's
door has been opened.<
Manual transmission
Turn the ignition key to position 1 or 0.
Automatic transmission
Place the selector lever in position P and
turn the ignition key to position 1 or 0.
Sequential manual gearbox SMG
If you turn the ignition key to position 1 or 0
with the selector lever in position R, or in
sequential mode, a gear automatically
remains engaged.
If you turn the ignition key to position 1 or 0
with the selector lever in neutral position N,
a warning tone and the flashing gear indi-
cator in the display remind you that the
vehicle is not secured against rolling.
The warning stops after approx. 9 seconds.
Always engage the parking brake
when parking on downhill roads.
Engaging a gear may not sufficiently secure
the vehicle against rolling.<

Driving
38
Parking brake
The parking brake is designed primarily to
prevent the vehicle from rolling when
parked. It operates against the rear wheels.
Indicator lamp
The indicator lamp lights up when
the parking brake is engaged; if you
start driving, an acoustic signal is
heard as well.
The indicator lamp for Canadian
models lights up when the parking
brake is engaged; if you start driv-
ing, an acoustic signal is heard as well.
To engage
The detent engages automatically and the
indicator lamp in the instrument cluster
comes on when the ignition key is in posi-
tion 2.
To release
Pull up slightly on the lever, press the but-
ton and lower the lever.
If, in exceptional circumstances, it
should be necessary to engage the
parking brake while the vehicle is in motion,
do not pull it with excessive pressure. Keep
the release button on the parking brake
lever pressed down while pulling up the
lever.
Excessive pressure can lead to overbraking
and loss of traction, fishtailing, at the rear
axle.
The brake lamps do not come on when the
parking brake is engaged.<
Vehicles with manual transmission:
Always engage the parking brake when parking on slopes and inclined sur-
faces, since shifting into 1st gear or reverse
may not provide adequate resistance to
rolling. Vehicles with automatic transmis-
sion: place the selector lever in
position P.<
To avoid corrosion and one-sided
braking, apply the parking brake
lightly from time to time when coasting to a
standstill – at a traffic signal, for example –
provided that it is safe to do so.<
Manual transmission
6-gear transmission*
When shifting into 5th or 6th gear, it is
important to press the gear shift lever to the
right to avoid accidentally engaging 3rd or
4th gear.
Reverse
Select reverse only when the vehicle is sta-
tionary. Press the gearshift lever to the left
to overcome the resistance.
As you do this, the backup lamps will turn
on automatically when the ignition key is in
position 2.
Do not hold the vehicle in place on
slopes by slipping or riding the clutch.
Use the parking brake instead, otherwise,
the ensuing friction to the clutch plates will
cause a great deal of wear and tear on the
clutch.<

Driving
40 direction, the transmission shifts up. When
the lever is tapped in the – direction, the
transmission shifts down. M1 to M 5 appear
in the gear indicator.
The Adaptive Transmission Control ATC
executes upshifts or downshifts only when
the new gear will provide a suitable combi-
nation of engine and road speed, e.g. ATC
will not execute downshifts if the engine
speed is too high. The desired gear will
appear briefly in the instrument cluster, fol-
lowed by the actual gear.
If you are driving in the manual mode
and wish to accelerate rapidly, e.g. to
pass another vehicle, shift down manually
or with the kickdown function.<
Shifting from M/S to selector lever posi-
tions P, R and N is possible only by going
through position D.
Available indicators
P R N D SD M1 M2 M3 M4 M5
Malfunction
If the indicator lamp comes on,
there is a malfunction in the trans-
mission system.
All of the selector lever positions can con-
tinue to be engaged; in the forward drive
positions, however, the vehicle will be
operating in the fourth gear only.
If this happens, avoid extreme engine loads
and consult the nearest BMW center.
Never work in the engine compart-
ment when a drive gear – forward or
reverse – is engaged. If you do so, the vehi-
cle could move. information beginning on page 94.
Sequential manual gearbox
SMG*
The concept
The sequential manual gearbox SMG is an
automated manual gearbox with which
clutching and shifting is assumed by an
electro-hydraulic system.
The SMG is operated via two shift paddles
on the steering wheel and the selector lever
in the center console.
It offers the following functions:
>Sequential mode: manual mode
>Drive mode: automated mode
>Ability to choose between two different
driving programs: Standard, Sport,
refer to Dynamic Driving Control
>Operating safety through protection
against misshifting
>Automatic upshifts and downshifts in
the drive mode
>Automatic downshifts at minimum
engine rpm
>Kickdown function in the drive mode
>Acceleration assistant.
Selector lever positions
The current selector lever position is shown
by a light-emitting diode on the center con-
sole.
R: Reverse
N: Neutral

Reference
At a glance
Controls
Driving tips
Mobility
45
Cruise control*
1To maintain and store speed/
to accelerate
2To decelerate
3To recall the stored setting
4To deactivate the system
Do not use cruise control on twisting
roads, when high traffic density pre-
vents driving at a constant speed, when the
road surface is slick, e.g. from snow, rain or
ice, nor when the road surface is loose, e.g.
from rocks or sand.<
To maintain and store speed/
to accelerate
You can maintain and store any desired
speed above approx. 20 mph / 30 km/h.
Press the lever briefly in direction 1:
The system maintains and stores the cur-
rent vehicle speed. Every time you tap the
lever, the speed increases by approx.
0.6 mph / 1 km/h.
Hold the lever in position 1:
The vehicle accelerates without pressure
on the accelerator pedal. As soon as you
release the lever, the system stores and
maintains the current speed.
If, on a downhill grade, the engine
braking effect is not sufficient, the
controlled speed can be exceeded. Speed
can drop on uphill grades if the engine out-
put is insufficient.<
To decelerate
Press the lever briefly in direction 2:
When the cruise control is active, vehicle speed is reduced by approx. 0.6 mph /
1 km/h every time you tap the button.
Hold the lever in position 2:
With the cruise control active, the system
automatically reduces the throttle opening
to slow the vehicle. As soon as you release
the lever, the system stores and maintains
the current speed.
To recall the stored setting
Press the lever briefly in direction 3:
The vehicle accelerates to and maintains
the last speed stored.
To deactivate the system
Press the lever briefly in direction 4:
The cruise control is deactivated immedi-
ately.
In addition, the system is automatically
deactivated in response to the following
conditions:
>When you apply the brakes
>When you depress the clutch or move
the automatic selector lever from D to N
>If you exceed or fall below the preset
speed for an extended period, for
example by depressing the accelerator.
You can recall the speed last stored.
Cruise control is also deactivated when the
ignition key is turned to position 0.
The stored speed is cleared in this case.

Special operating instructions
68
Special operating instructions
Break-in procedures
To ensure that your vehicle provides maxi-
mum economy throughout a long service
life, we request that you observe the fol-
lowing:
Engine and differential
Up to 1,200 miles / 2,000 km:
Drive at varying engine and road speeds,
but do not exceed the following engine or
road speed:
4,500 rpm / 4,500/min or
100 mph / 160 km/h.
Obey your local and state maximum speed
limits.
Refrain from using full throttle and avoid
pressing the accelerator beyond the kick-
down point.
After you have driven 1,200 miles /
2,000 km, you can gradually increase the
engine or road speeds.
You should also comply with these break-in
procedures if the engine or differential is
replaced later in the course of the vehicle's
service life.
Sequential manual gearbox SMG
Up to 1,200 miles / 2,000 km:
Avoid using the acceleration assistant dur-
ing the vehicle's break-in period.
Tires
Due to technical factors associated with
their manufacture, tires do not achieve their
full traction potential until an initial break-in
period has elapsed. You should therefore
drive with extra caution during the first
200 miles / 300 km.
Obey your local and state maximum speed
limits.
When the vehicle is operated on wet
or slushy roads, a wedge of water
may form between the tire and the road surface. This phenomenon is referred to as
hydroplaning and can lead to partial or
complete loss of traction, vehicle control
and braking effectiveness. Reduce your
speed on wet roads.<
Brake system
Approx. 300 miles / 500 km must elapse
before the brake pads and rotors achieve
their optimal surface and wear pattern.
To break in the separate parking brake
drums, apply the parking brake lightly when
coasting to a standstill – at a traffic signal,
for instance; use caution to avoid posing a
danger to other road users.
To avoid corrosion, repeat this procedure
from time to time.
The brake lamps do not come on when the
parking brake is set.
Vacuum for the brake system servo
unit on your BMW is available only
when the engine is running. When you
move the car with the engine off, e.g. by
towing, substantially higher levels of pedal
force will be required to brake the vehicle.<
Clutch
The clutch will achieve its optimal function-
ality after approx. 300 miles / 500 km. Shift
gears carefully during the break-in period.

Special operating instructions
70 Do not coast with the clutch
depressed or with the transmission or
selector lever in Neutral. Do not coast with
the engine switched off. Otherwise the
engine provides no braking effect and there
is no power-assist for braking or steering
when the engine is off.<
Brake pads
The yellow indicator lamp for the
brake pads lights up:
Have the condition of the brake
pads inspected.
For your own safety: use brake pads
which the manufacturer has approved
for your specific vehicle model. The manu-
facturer cannot evaluate non-approved
brake pads to determine if they are suitable
for use, and therefore cannot ensure the
operating safety of the vehicle in the event
of their use.<
Cargo loading
Avoid overloading the vehicle so that
the permitted load on the tires is not
exceeded. Otherwise, overheating and
inner damage to the tires may result. The
ultimate result can assume the form of a
sudden air loss.<
Determining the maximum load
1.Locate the following statement on your
vehicle's placard
*:
The combined weight of occu-
pants and cargo should never
exceed XXX kg or YYY lbs; otherwise
damage to the vehicle and unstable
driving conditions could result.<2.Determine the combined weight of the
driver and passenger that will be riding
in your vehicle
3.Substract the combined weight of the
driver and passenger from XXX kilo-
grams or YYY pounds
4.The resulting figure equals the available
amount of cargo and luggage load
capacity.
For example, if the XXX amount equals
551 lbs. and there will be two 150 lbs.
passengers in your vehicle, the amount
of available cargo and luggage load
capacity is 251 lbs.
551 lbs. minus 300 lbs. = 251 lbs.
5.Determine the combined weight of lug-
gage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in Step 4.
Load
The permissible load is the sum of the
occupants' weights and the weight of the
cargo. The greater the weight of the occu-
pants, the less cargo can be transported.
Stowing cargo
>Load heavy cargo as far forward as
possible, directly behind the luggage
compartment partition, and as low as
possible
>Cover sharp edges and corners.
To avoid damaging the rear of the
backrest or the rear interior trim
panel, do not stow heavy cargo or cargo
with sharp edges and corners behind the
seats.
In addition, large and bulky cargo stowed

Reference
At a glance
Controls
Driving tips
Mobility
105
Battery 91
– disposal 92
– indicator lamp 13, 91
– jump-starting 94
– remote control 17
Belts, refer to Safety
belts 30
Belt tensioner, refer to
Safety belts 30
Beverage holders 65
Blower
– air conditioning 59
– automatic climate
control 62
Blower, refer to Air
supply 59, 62
BMW 5
Bore, refer to Engine
data 100
Bottle holders, refer to
Beverage holders 65
Brake fluid 85
– filling 85
– indicator/warning
lamp 13, 85
– level 85
Brake force display 53
Brake hydraulic system 85
– indicator/warning
lamp 13, 69, 85
Brake lamps
– bulb replacement 90
– indicator lamp, defective
lamp 13
Brake pads 70
– break-in procedures 68
– indicator lamp 70
Brake pad wear indicator
– brake pads 70
– indicator lamp 13
Brake rotors
– brake system 69
– break-in procedures 68
Brakes 69
– ABS 54
– brake fluid 85
– break-in procedures 68
– indicator/warning
lamps 13, 52, 53, 54
– parking brake 38Brake system 69
– brake fluid level 85
– brake pads 70
– break-in procedures 68
– disc brakes 69
– indicator lamp 13
Breakdown
– Flat Tire Monitor 54
Break-in procedures 68
Bulb replacement, refer to
Lamps and bulbs 88
Buttons in steering
wheel 11
C
California Proposition
65 warning 87
Can holders, refer to
Beverage holders 65
Capacities 103
Car battery 91
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to
the Caring for your
vehicle brochure
Care, refer to the Caring for
your vehicle brochure
Cargo loading
– vehicle 70
Car keys, refer to Keys 16
Carpet care, refer to the
Caring for your vehicle
brochure
Car radio, refer to Owner's
Manual for Radio
Car telephone, refer to
Owner's Manual for
Telephone
Car wash, refer to the
Caring for your vehicle
brochure
Catalytic converter, refer to
High temperatures 69
CD player operation, refer
to Owner's Manual
for Radio
Center high-mount brake
lamp
– bulb replacement 90Central locking system 16
– interior 18
Changing a wheel 91
Charge indicator
lamp 13, 91
Check Gas Cap
– indicator lamp 13
Child-restraint mounting
system, LATCH 35
Child-restraint systems 33
Child seat, refer to Child-
restraint systems 33
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter 65
Cigarette lighter socket 65
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 windshield 44
Clock 49, 50
– 12- or 24-hour mode 50
– refer to Owner's Manual
for Radio/Onboard
Computer
– setting 49
Clothes hooks 25
Clutch
– break-in procedures 68
Cockpit 10
Cold start, refer to
Starting the engine 36
Compact disc operation,
refer to Owner's Manual
for Radio
Compartments 64
Compression ratio, refer to
Engine data 100
Computer 50
– clock, 12- or 24-hour
mode 50
– refer to Owner's Manual
for Onboard Computer
Computer, refer to
Onboard Computer 50
Condensation, refer to Air
conditioning mode 59, 62