2012 BMW Z4 SDRIVE35I ABS

Parking the vehicle during an
automatic engine stop
The vehicle can be parked safely during an au‐
tomatic engine stop, such as when you wish to
leave the vehicle.1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function
is deactivated.2.Set the parking brake.
Start the engine as usual using the Start/Stop
button.
Automatic engine start
To drive away, the engine starts automatically as
soon as the clutch pedal is depressed.
After the engine starts, accelerate as usual.
Safety mode
The engine does not start by itself after it is
switched off automatically if any of the following
conditions are fulfilled:
▷The driver's safety belt is unfastened or the
driver's door is open.▷Hood was unlocked.
The indicator lamp lights up.
The engine can only be started via the
Start/Stop button.
More information, refer to page 186.
Note
Even if you do not wish to drive away, the stop‐
ped engine still starts automatically in the fol‐
lowing situations:
▷The interior has heated up strongly with the
cooling function switched on.▷The steering wheel is turned.▷The vehicle begins to roll.▷Fogging of the windows when the automatic
climate control is switched on.▷Vehicle battery charge is very low.▷The interior has cooled down strongly with
the heating switched on.▷Low braking pressure, such as from de‐
pressing the brake pedal a number of times
consecutively.
Activating/deactivating the system
manually
Press the button.
▷LED on the button lights up: the Auto Start/
Stop function is deactivated.
The engine is started during an automatic
engine stop.
The engine can only be stopped or started
via the Start/Stop button.▷LED goes out: the Auto Start/Stop function
is activated.
Automatic deactivation
In certain situations, the Auto Start/Stop func‐
tion is deactivated automatically in the interest
of safety, for example if the driver's absence is
detected.
Malfunction The automatic engine start/stop func‐
tion no longer switches of the engine
automatically. The indicator lamp
lights up. It is possible to continue driving. Have
the system checked.
More information, refer to page 186.
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Driving stability control systemsVehicle 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.
Antilock Brake System ABS
ABS prevents locking of the wheels during brak‐
ing.
The vehicle remains steerable even during full
brake applications, thus increasing active
safety.
ABS is operational every time you start the en‐
gine.
Electronic brake-force
distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Dynamic Brake Control DBC
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost. It thus helps to achieve the shortest
possible braking distance during full braking.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the full braking.Dynamic Stability Control
DSC
The concept
DSC prevents traction loss in the driving wheels
when driving away and accelerating.
DSC also recognizes unstable vehicle condi‐
tions, such as fishtailing or nose-diving. Subject
to physical limits, DSC helps to keep the vehicle
on a steady course by reducing engine speed
and by applying brakes to the individual wheels.
Adjust your driving style to the situation
An appropriate driving style is always the
responsibility of the driver.
The laws of physics cannot be repealed, even
with DSC.
Therefore, do not reduce the additional safety
margin by driving in a risky manner.◀
Activating/deactivating DSC
DSC can be deactivated/activated via the DSC
OFF program of the Dynamic Driving Control,
refer to page 82.
For better control The DSC indicator lamp flashes: DSC is
controlling the drive forces and brake
forces.
The DSC indicator lamp lights up: DSC has
failed.Seite 81Driving stability control systemsControls81
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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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If the vehicle must be driven with the trunk lid
open:1.Close all windows.2.Greatly increase the air flow rate of the air
conditioner or automatic climate control.
Hot exhaust system
Hot exhaust system
High temperatures are generated in the
exhaust system.
Do not remove the heat shields installed and
never apply undercoating to them. Make sure
that flammable materials, e. g. hay, leaves, grass,
etc. do not come in contact with the hot exhaust
system during driving, while in idle position
mode, or when parked. Such contact could lead
to a fire, and with it the risk of serious personal
injury as well as property damage.
Do not touch hot exhaust pipes; otherwise, there
is the danger of getting burned.◀
Mobile communication devices in the
vehicle
Mobile communication devices in the ve‐
hicle
It is not recommended to use mobile phones,
such as mobile phones without a direct connec‐
tion to an external aerial in the vehicle's passen‐
ger compartment. Otherwise, the vehicle elec‐
tronics and mobile communication devices can
interfere with each other. In addition, there is no
assurance that the radiation generated during
transmission will be discharged from the vehicle
interior.◀
Hydroplaning
On wet or slushy roads, a wedge of water can
form between the tires and road surface.
This phenomenon is referred to as hydroplan‐
ing. It is characterized by a partial or complete
loss of contact between the tires and the road
surface, ultimately undermining your ability to
steer and brake the vehicle.
Hydroplaning
When driving on wet or slushy roads, re‐
duce your speed to prevent hydroplaning.◀
Driving through water
Drive though calm water only if it is not deeper
than 9.8 inches/25 cm and at this height, no
faster than walking speed, up to 6 mph/10 km/h.
Adhere to water depth and speed limita‐
tions
Do not exceed this water depth and walking
speed; otherwise, the vehicle's engine, the elec‐
trical systems and the transmission may be
damaged.◀
Braking safely
Your vehicle is equipped with ABS as a standard
feature.
Applying the brakes fully is the most effective
way of braking in situations when this is neces‐
sary.
The vehicle maintains steering responsiveness.
You can still avoid any obstacles with a minimum
of steering effort.
Pulsation of the brake pedal and sounds from
the hydraulic circuits indicate that ABS is in its
active mode.
Objects in the area around the pedals No objects in the area around the pedals
Keep floor mats, carpets, and any other
objects out of the area of motion of the pedals;
otherwise, the function of the pedals could be
impeded while driving
Do not place additional floor mats over existing
mats or other objects.
Only use floor mats that have been approved for
the vehicle and can be properly fixed in place.Seite 109Things to remember when drivingDriving tips109
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Run-flat tires
Label
RSC label on the tire sidewall.
The wheels are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a pressure loss.
Driving can continue with a damaged tire, refer
to page 77.
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Changing wheels and tires
Mounting Information on mounting tires
Have mounting and balancing performed
only by a service center or tire specialist.
If this work is not carried out properly, there is
the danger of subsequent damage and related
safety hazards.◀
Wheel and tire combination
Information on the correct wheel-tire combina‐
tion and rim versions for your vehicle can be ob‐
tained from your service center.
Incorrect wheel and tire combinations impair the
function of a variety of systems such as ABS or
DSC.
To maintain good handling and vehicle re‐
sponse, use only tires with a single tread con‐
figuration from a single manufacturer.
Following tire damage, have the original wheel
and tire combination remounted on the vehicle
as soon as possible.
Approved wheels and tires
The manufacturer of your vehicle recom‐
mends that you use only wheels and tires that
have been approved for your particular vehicle
model.
For example, despite having the same official
size ratings, variations can lead to body contact
and with it, the risk of severe accidents.
The manufacturer of your vehicle cannot evalu‐
ate non-approved wheels and tires to determine
if they are suited for use, and therefore cannot
ensure the operating safety of the vehicle if they
are mounted.◀
Recommended tire brands
For each tire size, the manufacturer of your ve‐
hicle recommends certain tire brands. These
can be identified by a star on the tire sidewall.
With proper use, these tires meet the highest
standards for safety and handling.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
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After the Emergency Request arrives at the
BMW Assist Response Center, the BMW
Assist Response Center contacts you and
takes further steps to help you.
Even if you are unable to respond, the BMW
Assist Response Center can take further
steps to help you under certain circumstan‐
ces.
For this purpose, data that are used to de‐
termine the necessary rescue measures,
such as the current position of the vehicle if
it can be established, are transmitted to the
BMW Assist Response Center.▷If the LED is flashing but the BMW Assist
Response Center cannot be heard on the
hands-free system, the hands-free system
may be malfunctioning. However, the BMW
Assist Response Center may still be able to
hear you.
Initiating an Emergency Request
automatically
Under certain conditions, an Emergency Re‐
quest is automatically initiated immediately after
a severe accident. Automatic Collision Notifica‐
tion is not affected by pressing the SOS button.
Warning triangle
The warning triangle is located in a holder in the
trunk lid. Press the tabs to take it out.
First aid kit
The first aid pouch is located on the lateral stor‐
age shelf behind the seats.
Some of the articles contained in the first aid
pouch have a limited service life.
Check the expiration dates of the contents reg‐
ularly and replace any items promptly.
Roadside Assistance
Service availability
Roadside Assistance can be reached around the
clock in many countries. You can obtain assis‐
tance there in the event of a vehicle breakdown.
Jump-starting
Notes
If the battery is discharged, an engine can be
started using the battery of another vehicle and
two jumper cables. Only use jumper cables with
fully insulated clamp handles.
To prevent personal injury or damage to both
vehicles, adhere strictly to the following proce‐
dure.
Do not touch live parts
To avoid the risk of potentially fatal injury,
always avoid all contact with electrical compo‐
nents while the engine is running.◀
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12CauseHow to respondIndication in US modelsDynamic Stability Control DSC and DTC in‐
cluding drive-off assistant failed.Driving stability limited during
acceleration and cornering. You
can continue your journey, but
moderate your speed and exer‐
cise due caution. Have the sys‐
tem checked as soon as possi‐
ble.Indication in Canadian modelsDynamic Stability Control DSC and DTC in‐
cluding drive-off assistant and Flat Tire Mon‐
itor failed.Driving stability limited during
acceleration and cornering. You
can continue your journey, but
moderate your speed and exer‐
cise due caution. Have the sys‐
tem checked as soon as possi‐
ble.Indication in US modelsThe driving stability control systems including
ABS have failed, refer to page 81. Reduced
braking and driving stability.It is possible to continue driving.
Drive at moderate speeds, avoid‐
ing abrupt braking maneuvers.
Have the system checked as
soon as possible.Indication in Canadian modelsSeite 194MobilityIndicator/warning lamps194
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12CauseHow to respondThe driving stability control systems including
ABS and the Flat Tire Monitor have failed, re‐
fer to page 81. Reduced braking and driving
stability.It is possible to continue driving.
Drive at moderate speeds, avoid‐
ing abrupt braking maneuvers.
Have the system checked as
soon as possible.Indication in US modelsThe vehicle electronics have failed.You cannot continue your jour‐
ney. Contact your service center.Indication in Canadian modelsThe vehicle electronics have failed.You cannot continue your jour‐
ney. Contact your service center.In vehicles with the Flat Tire Monitor
Light up in yellow and red:A tire is deflated.Carefully bring the car to a stop.
Observe the additional informa‐
tion, refer to page 75.The Flat Tire Monitor was not initialized.Initialize the Flat Tire Monitor, re‐
fer to page 75.Light up in yellow:Flat Tire Monitor failed. Punctures are not in‐
dicated.Have the system checked.In vehicles with the Tire Pressure Monitor
Light up in yellow and red:There is a flat tire or substantial loss of inflation
pressure in the indicated tire.Carefully bring the car to a stop.
Observe the additional informa‐
tion, refer to page 77.In vehicles with the Tire Pressure Monitor
Light up in yellow:Seite 195Indicator/warning lampsMobility195
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