engine overheat BMW Z4 SDRIVE35I 2012 Owners Manual

Ignition on
All electrical consumers can operate. The od‐
ometer and trip odometer are displayed in the
instrument cluster.
To save battery power when the engine is off,
switch off the ignition and any unnecessary
electronic systems/power consumers.
Radio ready state and ignition off
All indicator and warning lamps as well as dis‐
plays in the instrument cluster go out.
Sport automatic transmission
In certain situations, transmission position P is
engaged automatically. To make it possible for
the vehicle to roll, such as in an automatic car
wash, follow the instructions in Car washes, re‐
fer to page 182.
Starting the engine Enclosed areas
Do not let the engine run in enclosed
areas; otherwise, breathing of exhaust fumes
may lead to loss of consciousness and death.
The exhaust gases contain carbon monoxide, an
odorless and colorless but highly toxic gas.◀
Unattended vehicle
Do not leave the car unattended with the
engine running; otherwise, it presents a poten‐
tial source of danger.
Before leaving the car with the engine running,
set the parking brake and place the transmission
in position P or neutral to prevent the car from
moving.◀
Frequent starting in quick succession
Avoid repeated futile attempts at starting
the car and avoid starting the car frequently in
quick succession. Otherwise, the fuel is not
burned or is inadequately burned, and there is
the danger of overheating and damaging the
catalytic converter.◀Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
Manual transmission
Remote control in the ignition lock or, with Com‐
fort Access, inside the vehicle, refer to page 28.
1.Depress the brake pedal.2.Press on the clutch and shift to neutral.3.Press the Start/Stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the en‐
gine has started.
Sport automatic transmission
Remote control in the ignition lock or, with Com‐
fort Access, inside the vehicle, refer to page 28.
1.Depress the brake pedal.2.Press the Start/Stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the en‐
gine has started.
Engine stop Take the remote control with you
Take the remote control with you when
leaving the vehicle so that children, for example,
cannot start the engine or release the parking
brake.◀
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▷Shift up: pull right shift paddle.▷Shift down: pull left shift paddle.
The vehicle only shifts up or down at appropriate
engine and road speeds, e.g., it does not shift
down if the engine speed is too high.
The selected gear is briefly displayed in the in‐
strument cluster, followed by the current gear.
Displays in the instrument cluster
The gear position is displayed and the engaged
gear, such as M4, is displayed in manual mode.
7-gear Sport automatic
transmission with dual clutch
The concept
This transmission is an automated manual
transmission with two clutches and two gearbox
components in which the gears are changed
without loss of torque.
The transmission is operated using the selector
lever and two shift paddles on the steering
wheel.
Functions:
▷Choice of manual or automatic operation:
manual mode or drive mode.▷Automatic downshifting and protection
against selecting the wrong gear, even in
manual mode.▷Acceleration assistant, Launch Control, re‐
fer to page 58.▷Automatic throttle blip.
System limits
This transmission is equipped with an overheat‐
ing protection system that protects the clutches
against extremely high loads.
The indicator lamp lights up yellow if
the transmission becomes too warm.
Avoid high engine loads and driving off
frequently.
If the transmission overheats, the indicator lamp
lights up red and power flow to the engine is in‐
terrupted. You can only continue driving after
the transmission has cooled down.
Avoid driving off frequently with high accelera‐
tion and do not hold the vehicle on inclines by
depressing the accelerator lightly; otherwise,
the transmission may overheat.
Transmission positions
P R N D M/S + –
Displays in the instrument cluster
The gear position and the engaged gear, such
as M4, are displayed.
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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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12CauseHow to respondEngine malfunction with an adverse effect on
exhaust emissions.Have the vehicle checked as
soon as possible.Lights up in red:The engine is overheating.Carefully bring the car to a stop,
switch off the engine and allow it
to cool down. Do not open the
hood; otherwise, there would be
a risk of injury due to scalding.
Contact your service center.Lights up in yellow:The engine is too hot.Continue driving at more moder‐
ate speed so that the engine can
cool down. Have the engine
checked without delay if the sit‐
uation reoccurs.Lights up in red:Battery is no longer being charged. Alternator
malfunction.Switch off all unnecessary elec‐
trical consumers. Have the
power supply system checked
without delay.Lights up in yellow:The battery charge level is very low, the bat‐
tery is old or is not securely connected.Have the battery checked as
soon as possible.Indication in US models
The parking brake is set.Indication in Canadian models
The parking brake is set.Indication in US modelsLights up in red:The brake fluid level is too low.Reduced braking effect, stop the
car carefully. Contact your serv‐
ice center.Seite 191Indicator/warning lampsMobility191
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12CauseHow to respondLights up in red:The transmission is overheating.Stop the car and engage trans‐
mission position P. Allow the
transmission to cool down. You
can continue your trip at moder‐
ate speeds. Have the system
checked if the situation reoc‐
curs.Lights up in yellow:Manual transmission: the clutch temperature
is too high.Allow the clutch to cool down.
Cooling occurs while the vehicle
is either stationary or moving.
Avoid stop-and-go driving and
driving below walking speed for
lengthy periods. The clutch has
cooled down when this message
disappears. The clutch is not
damaged.The automatic transmission is too hot.Avoid high engine loads. You can
continue your journey, but mod‐
erate your speed and exercise
due caution.Transmission position P is not engaged. The
vehicle is not secured against rolling.The selector lever is malfunctioning.The trip can be continued. Shift
again if necessary. Have the sys‐
tem checked if the situation re‐
occurs.It is possible to engage the gear without de‐
pressing the brake.To change the transmission po‐
sition, always depress the brake.The pinch protection system of the power
windows is malfunctioning.Have the system checked.Seite 197Indicator/warning lampsMobility197
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Driving stability control sys‐tems 81
Driving tips 108
DSC Dynamic Stability Con‐ trol 81
DTC Dynamic Traction Con‐ trol 82
Dynamic Brake Control DBC 81
Dynamic Driving Control 82
Dynamic Stability Control DSC 81
Dynamic Traction Control DTC 82
E
EBV electronic brake-force distribution 81
EfficientDynamics, refer to Saving fuel 112
Electrical fault– 7-gear automatic transmis‐
sion 58
Electrical malfunction
– Door lock 26– Driver's door 26– Fuel filler flap 152
Electric seat adjustment 37
Electronic brake-force distri‐ bution 81
Electronic engine oil level check 164
Electronic Stability Program ESP, refer to DSC 81
Emergency operation
– Fuel filler flap, unlocking
manually 152
Emergency Request 176
Emergency service, refer to Roadside Assistance 177
Emergency unlocking
– Trunk lid, from the inside 28
Energy, saving
– Automatic Engine Start/Stop
Function 47
Engine compartment 163
Engine coolant, refer to Cool‐
ant 166
Engine data 202
Engine oil, adding 165
Engine oil additives 166
Engine oil, checking the level 164
Engine oil, filling capacity 206
Engine oil temperature 61
Engine oil types, alterna‐ tive 166
Engine oil types, ap‐ proved 166
Engine, overheating, refer to Coolant temperature 61
Engine power, refer to Engine data 202
Engine, RPM 202
Engine start, Help 177
Engine, starting 46
Engine, starting– Comfort Access 28– Start/Stop button 45
Engine, stopping, Start/Stop
button 45
Engine, switching off 46
Engine temperature 61
Entry lamps, refer to Interior lamps 72
Equipment, interior 96
Error messages, refer to Check Control 66
ESP Electronic Stability Pro‐ gram, refer to DSC 81
Exchanging wheels/tires 161
Exhaust system 109
Exterior mirrors 40
Exterior mirrors
– Automatic dimming 41– Automatic heating 41– Folding in and out 41– Setting 40
External audio device 103
External start 177
External temperature dis‐ play 60
External temperature display– Changing the units 63– On the computer 63
External temperature warn‐
ing 60
Eyes for securing cargo 112
F
Failure messages, refer to Check Control 66
Failure of an electrical acces‐ sory 175
False alarm
– Avoiding unintentional
alarms 31– Ending an alarm 30
Fastening safety belts, refer to
Safety belts 38
Fasten safety belts reminder
– Refer to Safety belt re‐
minder 39
Filter
– Refer to Microfilter/acti‐
vated-charcoal filter with au‐
tomatic climate control 95– Refer to Microfilter for air
conditioner 91
Fine wood, care 184
First aid kit 177
Fittings
– For tow-starting and tow‐
ing 179
Flashing when locking/unlock‐
ing 24
Flat tire, Flat Tire Monitor FTM 75
Flat Tire Monitor
– Snow chains 162
Flat Tire Monitor FTM 75
Flat tire, Tire Pressure Monitor TPM 77
Flat tire, warning lamp 76
Flat tire, wheel change 173
Flooding 109
Floor carpet, care 184
Floor mats, care 184
Foot brake 109
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Minimum tread depth,tires 160
Mirror– Mirror memory, refer to Seat
and mirror memory 39
Mirrors
– Automatic Curb Monitor 40– Exterior mirrors 40– Folding in, before driving into
a car wash 41– Heating 41– Interior rearview mirror 41
Mobile communication devi‐
ces in the vehicle 109
Mobile phone, installation lo‐ cation, refer to Center arm‐
rest 103
Modifications, technical, refer to Safety 6
Multifunction switch
– Refer to Turn signals/head‐
lamp flasher 50
N
Nets, refer to Storage com‐ partments 104
New wheels and tires 161
Nozzles, refer to Air vents 89
Nozzles, refer to Ventila‐ tion 91, 94
Nylon rope, refer to Tow rope 180
O
OBD Onboard Diagnos‐ tics 169
Odometer 60
Oil additives 166
Oil change interval, service re‐ quirements 65
Oil consumption 164
Oil level 164
Oil, refer to Engine oil 164
Oil types, alternative 166
Oil types, approved 166
Old batteries, disposal 175
Onboard computer, refer to Computer 62
Onboard Diagnostics OBD 169
Onboard vehicle tool kit 170
Opening and closing– Comfort Access 28– From the inside 26– From the outside 22– Using the door lock 25– Using the remote control 22
Outside-air mode
– Automatic climate con‐
trol 94
Outside air, refer to Recircu‐
lated air mode 90, 94
Overheating of engine, refer to Coolant temperature 61
P
Paint, vehicle 183
Park Distance Control PDC 87
Parked vehicle, condensa‐ tion 110
Parking aid, refer to PDC 87
Parking lamps 68
Passenger airbags, deactivat‐ ing 74
Passenger side mirror, tilt‐ ing 40
PDC Park Distance Con‐ trol 87
Personal Profile 20
Pinch protection
– Windows 32
Plastic, care 184
Pollen
– Refer to Microfilter/acti‐
vated-charcoal filter with au‐
tomatic climate control 95– Refer to Microfilter for air
conditioner 91
Power, refer to Engine
data 202
Power windows, opening and
closing 32
Power windows, refer to Win‐ dows 31
Pressure monitoring of tires, refer to Tire Pressure Monitor
TPM 77
Pressure, tires 155
Pressure warning, tires 75
Pressure warning, tires– Flat Tire Monitor 75– Tire Pressure Monitor 77
Professional Radio 116
Protective function, refer to
Pinch protection
– Windows 32
R
Radiator fluid, refer to Cool‐ ant 166
Radio-operated key, refer to Remote control with
integrated key 20
Radio ready state 45
Radio ready state
– Switched off 46– Switched on 45
Radio setting, refer to Radio
ready state 45
Rain sensor 51
Range 62
Reading lamps 72
Rear lamps
– Bulb replacement 172
Rear lamps, refer to Tail
lamps 172
Rear lamps, refer to Tail lamps
– Bulb replacement 172, 173
Rearview mirror, refer to Mir‐
rors 40
Rear window defroster 91, 94
Recirculated air mode 90, 94
Reclining seat, refer to Back‐ rest 36
Recommended tire brands 161
Seite 214ReferenceEverything from A to Z214
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