2012 BMW Z4 SDRIVE35I brake light

Activating COMFORTPress the button repeatedly until COM‐
FORT is selected in the instrument
cluster.
Displays in the instrument cluster
The selected program is displayed in the instru‐
ment cluster.
Drive-off assistant
This system supports driving away on gradients.
The parking brake is not required.
1.Hold the vehicle in place with the foot brake.2.Release the foot brake and drive away with‐
out delay.
After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
Depending on the vehicle load, the vehicle may
roll back slightly.
Driving off without delay
After releasing the foot brake, start driving
without delay, since the drive-off assistant will
not hold the vehicle in place for more than ap‐
prox. 2 seconds and the vehicle will begin rolling
back.◀
Servotronic
The concept
The Servotronic varies the steering force re‐
quired to turn the wheels depending on the
speed at which you are driving. Power steering
provides strong support at low speeds, which
means that little effort is needed to turn the
wheels. Power steering support lessens as your
speed increases.
The system works automatically.
Malfunction
Malfunctions are displayed via Check Control,
refer to page 186.Seite 84ControlsDriving stability control systems84
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Driving comfortVehicle equipment
This chapter describes all series equipment as
well as country-specific and special equipment
offered for this model series.Therefore, it also
describes equipment that may not be found in
your vehicle, for instance due to the selected
special equipment or the country version. This
also applies to safety-related functions and sys‐
tems.
Cruise control
The concept
Cruise control is available for use at speeds of
approx. 20 mph/30 km/h and higher. The car
then stores and maintains the speed that you
specify using the lever on the steering column.
In order to maintain the specified speed, the
system brakes the vehicle when the engine
braking effect is insufficient on downhill gradi‐
ents.
Do not use cruise control
Do not use the system if unfavorable con‐
ditions make it impossible to drive at a constant
speed, for instance:▷On curvy roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or on
a loose road surface.
Otherwise, you could lose control of the vehicle
and cause an accident.◀
Manual transmission
You can shift gears while cruise control is acti‐
vated. An indicator lamp notifies you that you
should shift gears when you drive for an ex‐
tended period at very high or very low engine
speeds, or the system is deactivated.
One lever for all functions1Storing and maintaining speed or accelerat‐
ing2Storing and maintaining speed or deceler‐
ating3Deactivating cruise control4Resuming a speed stored beforehand
Maintaining current speed
Push the lever, arrow 1, or pull it briefly, arrow 2.
The car's current speed is stored and main‐
tained. It is displayed on the speedometer and
briefly in the instrument cluster.
On uphill gradients, it may prove impossible to
maintain the set speed if current engine power
output is insufficient. If the engine braking effect
is insufficient on downhill slopes, the system will
brake the vehicle slightly.
Increasing desired speed
Repeatedly press the lever to the resistance
point or beyond, arrow 1, until the desired speed
is reached.
▷Each time the lever is pressed to the point of
resistance, the desired speed increases by
approx. 1 mph/1 km/h.▷Each time the lever is pressed beyond the
resistance point, the desired speed is in‐
creased by up to 5 mph/10 km/h.
The system stores and maintains the speed.
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Accelerating using the lever
Accelerating slightly:
Press the lever to the resistance point, arrow 1,
and hold until the desired speed is reached.
Accelerating significantly:
Press the lever beyond the resistance point, ar‐
row 1, and hold until the desired speed is
reached.
The vehicle accelerates without pressure on the
accelerator pedal. The system stores and main‐
tains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance point
or beyond, arrow 2, until the desired speed is
displayed.▷Each time the lever is pulled to the resist‐
ance point, the desired speed is decreased
by approx. 1 mph/1 km/h.▷Each time the lever is pulled beyond the re‐
sistance point, the desired speed is reduced
by up to 5 mph or 10 km/h until the minimum
speed of 20 mph/30 km/h is achieved.
The system stores and maintains the speed.
Interrupting the system
Push the lever upwards or downwards, arrow 3.
The displays in the speedometer change color.
In addition, the system is automatically inter‐
rupted in the following situations:
▷When the brakes are applied.▷In cars with manual transmission, when
gears are shifted very slowly or if neutral is
engaged.▷In cars with Sport automatic transmission,
when transmission position N is engaged.▷When DTC is activated or DSC is deacti‐
vated.▷When DSC or ABS is intervening.
Cruise control is not deactivated by depressing
the accelerator pedal. Once the accelerator
pedal is released, the stored speed is achieved
again and maintained.
Warning lamp The warning lamp comes on, for ex‐
ample, when cruise control has been
deactivated as a result of DSC inter‐
vention.
Deactivating the system▷Press the lever upward or downward twice,
arrow 3.▷Switch off the ignition.
The stored speed is cleared.
Resuming a speed stored beforehand
Press the button, arrow 4. The last stored speed
is resumed and maintained.
Displays in the instrument cluster
1Stored speed2Selected speed is displayed briefly
If --- mph or --- km/h temporarily appears in the
instrument cluster display, it is possible that the
system prerequisites for operation are currently
not met.
Call up Check Control messages, refer to
page 67.
Malfunction The warning lamp comes on when the
system has failed.
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Ensure that the floor mats are securely fastened
again when they are returned after being re‐
moved, such as for cleaning.◀
Driving in wet conditions
When roads are wet or there is heavy rain, briefly
exert gentle pressure on the brake pedal every
few miles.
Ensure that this action does not endanger other
road users.
The heat generated in this process helps dry the
brake discs and pads.
In this way braking efficiency will be available
when you need it.
Hills
Drive long or steep downhill gradients in the gear
in which the least braking is required. Otherwise,
the brake system may overheat, resulting in a
reduction in the brake system efficiency.
You can increase the engine's braking effect by
shifting down, going all the way to first gear, if
necessary.
Downshifting in manual mode of the 8-gear
Sport automatic transmission, refer to page 54.
Downshifting in manual mode of the 7-gear
Sport automatic transmission with dual clutch,
refer to page 57.
Avoid load on the brakes
Avoid placing excessive load on the brake
system. Light but consistent brake pressure can
lead to high temperatures, brake wear and pos‐
sibly even brake failure.◀
Do not drive in neutral
Never drive with the transmission in neu‐
tral, with the engine switched off or with the
clutch depressed; otherwise, you will have nei‐
ther the braking action of the engine or nor its
power assistance when braking or steering.◀Brake disc corrosion
Corrosion on the brake discs and contamination
on the brake pads are furthered by:▷Low mileage.▷Extended periods when the vehicle is not
used at all.▷Infrequent use of the brakes.
Corrosion occurs when the minimum pressure
that must be exerted by the pads during brake
applications to clean the discs is not reached.
Should corrosion form on the brake discs, the
brakes will tend to respond with a pulsating ef‐
fect that generally cannot be corrected.
Condensation under the parked vehicle
When using the automatic climate control, con‐
densation water develops that exits underneath
the vehicle.
Therefore, traces of condensed water under the
vehicle are normal.
Loading Overloading the vehicle
To avoid exceeding the approved carrying
capacity of the tires, never overload the vehicle.
Overloading can lead to overheating and in‐
creases the rate at which damage develops in‐
side the tires. This could result in a sudden loss
of tire inflation pressure.◀
Secure heavy objects
Never transport unsecured heavy or hard
objects in the passenger compartment, as they
could be thrown around and pose a safety haz‐
ard to the vehicle's occupants during abrupt
braking or evasive maneuvers.◀
No fluids in the cargo area
Make sure that fluids do not leak into the
cargo area; otherwise, the vehicle may be dam‐
aged.◀
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Tow-starting and towing
Tow fitting
The screw-in tow fitting should always be car‐
ried in the vehicle. It can be screwed in at the
front or rear of the BMW.
It is stored in the onboard vehicle tool kit under
the floor panel in the trunk, refer to page 170.
Tow fitting, information on use▷Use only the tow fitting provided with
the vehicle and screw it all the way in.▷Use the tow fitting for towing on paved roads
only.▷Avoid lateral loading of the tow fitting, e.g.,
do not lift the vehicle by the tow fitting.
Otherwise, damage to the tow fitting and the ve‐
hicle can occur.◀
Screw thread
Front
Release the cover panel in the bumper:
Press on the recess at the bottom left in the
cover panel.
Rear
Release the cover panel in the bumper:
Press on the recess at the bottom center in the
cover panel.
Towing
General information Light towing vehicle
The towing vehicle must not be lighter
than the vehicle being towed; otherwise, it will
not be possible to control the vehicle re‐
sponse.◀
Attaching the tow bar/tow rope correctly
Attach the tow bar or tow rope to the tow
fitting; connecting it to other vehicle parts may
cause damage.◀
8-gear Sport automatic transmission
The vehicle is not permitted to be towed. Con‐
tact a service center in the event of a breakdown.
Observe in the event of a breakdown
Have the vehicle transported on a loading
platform only, or damage may occur.◀
Observe before towing The parking brake is blocked
The parking brake cannot be released
manually.
When the parking brake is blocked, do not tow
with the front axle lifted or the vehicle can be
damaged.
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Transmission position P is engaged automati‐
cally:▷Automatically after approx. 30 minutes.▷When the remote control is removed from
the ignition lock.
Headlamps
▷Do not rub dry and do not use abrasive or
caustic cleansers.▷Soak areas that have been soiled e.g. due to
insects, with shampoo and wash off with
water.▷Thaw ice with de-icing spray; do not use an
ice scraper.
Retractable hardtop
When you open a wet hardtop, water drops may
run into the cargo area. If necessary, remove
items from the cargo area beforehand to avoid
water stains or soiling.
After washing the vehicle
After washing the vehicle, apply the brakes
briefly to dry them; otherwise, braking action can
be reduced and corrosion of the brake discs can
occur.
Vehicle care
Car care products
BMW recommends using cleaning and care
products from BMW, since these have been
tested and approved.
Car care and cleaning products
Follow the instructions on the container.
When cleaning the interior, open the doors or
windows.
Only use products intended for cleaning vehi‐
cles.
Cleansers can contain substances that are dan‐
gerous and harmful to your health.◀
Vehicle paint
Regular care contributes to driving safety and
value retention.
Environmental influences can act on the vehicle
paint. Tailor the frequency and extent of your car
care to these influences.
Leather care
Remove dust from the leather often, using a
cloth or vacuum cleaner.
Otherwise, particles of dust and road grime
chafe in pores and folds, and lead to increased
wear and premature degradation of the leather
surface.
To guard against discoloration, such as from
clothing, provide leather care roughly every two
months.
Clean light-colored leather more frequently as
dust and dirt are more noticeable.
Use leather care products; otherwise, dirt and
grease will gradually break down the protective
layer of the leather surface.
Suitable care products are available from the
service center.
Upholstery material care
Vacuum regularly with a vacuum cleaner.
If they are very dirty, e.g., beverage stains, use a
soft sponge or microfiber cloth with a suitable
interior cleaner.
Clean the upholstery down to the seams using
large sweeping motions. Avoid rubbing the ma‐
terial vigorously.
Damage from Velcro® fasteners
Open Velcro® fasteners on pants or other
articles of clothing can damage the seat covers.
Ensure that any Velcro® fasteners are closed. ◀Seite 183CareMobility183
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Indicator/warning lampsVehicle equipment
This chapter describes all series equipment as
well as country-specific and special equipment
offered for this model series.Therefore, it alsodescribes equipment that may not be found in
your vehicle, for instance due to the selected
special equipment or the country version. This
also applies to safety-related functions and sys‐
tems.
Overview
The indicator and warning lamps can light up in
a variety of combinations and colors. See the ta‐
ble for information on causes and how to re‐
spond. Note whether a lamp comes on alone or
in combination with another. Some lamps can
light up in different colors. Corresponding dis‐
tinctions are made in the text. 12CauseHow to respondTurn signalThe high beams/headlamp flasher are
switched on.Fasten safety belts.Fasten safety belt, refer to
page 38.Indication in US modelsLights up in red:The parking brake is set.Release the parking brake.Lights up in yellow:Parking brake malfunctioning.Have the system checked imme‐
diately.Parking brake malfunctioning.
Emergency braking with the parking brake not
possible.Have the system checked imme‐
diately.Seite 186MobilityIndicator/warning lamps186
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12CauseHow to respondParking brake malfunctioning.
Not functional while vehicle is stationary.Secure vehicle against rolling
when parked. Have the system
checked immediately.Parking brake failedSecure vehicle against rolling
when parked. Have the system
checked immediately.Indication in Canadian modelsLights up in red:The parking brake is set.Release the parking brake.Lights up in yellow:Parking brake malfunctioning.Have the system checked imme‐
diately.Parking brake malfunctioning.
Emergency braking with the parking brake not
possible.Have the system checked imme‐
diately.Parking brake malfunctioning.
Not functional while vehicle is stationary.Secure vehicle against rolling
when parked. Have the system
checked immediately.Parking brake failedSecure vehicle against rolling
when parked. Have the system
checked immediately.External temperature warningDrive conservatively, refer to
page 60.Lights up briefly:
Approx. 2.1 US gal/8 liters of fuel remain in the
tank.
Remains on:
The remaining range is no more than 30 miles/
50 km, refer to page 61.The engine refuses to start.Depress the brake or clutch to
start the engine, refer to
page 46.Seite 187Indicator/warning lampsMobility187
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