Pressure BMW Z4 2015 E89 Owner's Guide

Remove attached parts following use
Remove auxiliary mirrors or rear-mounted lug‐
gage racks after use.
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Close both windows
An open window causes higher air resistance
and thus increases fuel consumption.
Tires
General information
Tires can have varying effects on fuel con‐
sumption; for example, fuel consumption can
be influenced by the tire size.
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire infla‐
tion pressure, refer to page 228, at least twice
a month and before starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving
right away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehi‐ cle driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.
Avoid high engine speeds Use 1st gear to get the vehicle in motion. Be‐
ginning with 2nd gear, accelerate rapidly.When accelerating, shift up before reaching high engine speeds.
When you reach the desired speed, shift into
the highest applicable gear and drive with the
engine speed as low as possible and at a con‐
stant speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
Use coasting conditions When approaching a red light, take your foot
off the accelerator and coast to a halt in the
highest applicable gear.
On a downhill slope, take your foot off the ac‐
celerator and coast in a suitable gear.
The flow of fuel is interrupted while coasting.
Switch off the engine during longer
stops
Switch off the engine during longer stops, e.g.,
at traffic lights, railroad crossings or in traffic
congestion.
Automatic Engine Start/Stop Function The Automatic Engine Start/Stop Function au‐
tomatically switches the engine off during a
stop.
If the engine is stopped and then started again,
fuel consumption and emissions drop com‐
pared to an engine that runs permanently.
Stopping the engine even for just a few sec‐
onds can result in savings.
Use of this system can cause premature wear
on certain vehicle components.
In addition, fuel consumption depends on
other factors as well, such as driving style, road
conditions, maintenance, and environmental
factors.
Additional information on the Automatic En‐
gine Start/Stop Function, refer to page 59.Seite 135Things to remember when drivingDriving tips135
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Wheels and tiresVehicle 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
systems.
When using the features and systems descri‐
bed here, adhere to local regulations.
Tire inflation pressure Information for your safety
It is not merely the tires' service life, but also
driving comfort and, to a great extent, driving
safety that depend on the condition of the tires
and the maintenance of the specified tire pres‐
sure.
Check the tire inflation pressure regularly
Regularly check the tire inflation pres‐
sure and correct it as needed: at least twice a
month and before a long trip. If you fail to ob‐
serve this precaution, you may be driving on
tires with incorrect tire pressures, a condition
that may not only compromise your vehicle's
driving stability, but also lead to tire damage
and the risk of an accident.◀
Checking the pressure Tires naturally lose pressure uniformly across
all four tires.
Only check the tire inflation pressure when the
tires are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle
has been parked for at least 2 hours. When the
tires are warm, the tire inflation pressure is
higher.Tires warm up during driving and the tire infla‐
tion pressure increases as the temperature
rises. The tire inflation pressure specifications
apply to cold tires or tires at ambient tempera‐
ture.
Only check the tire inflation pressure when the
tires are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle
has been parked for at least 2 hours.
The values displayed by tire inflation stations
may be up to 0.1 bar, 2 psi too low.
For the Flat Tire Monitor: after adjusting the
tire inflation pressure to a new value, reinitialize
the Flat Tire Monitor, refer to page 94.
For the Tire Pressure Monitor: after adjusting
the tire inflation pressure to a new value, reset
the Tire Pressure Monitor, refer to page 97.
Pressure specifications The tables below provide all the correct infla‐
tion pressures for the specified tire sizes at
ambient temperature.
The inflation pressures apply to the tire sizes
approved and tire brands recommended by
BMW; a list of these is available from your
service center.
For correct identification of the right tire infla‐
tion pressures, observe the following:▷Tire sizes of your vehicle.▷Maximum allowable driving speed.
Tire inflation pressures for driving up
to 100 mph or 160 km/h
For normal driving up to 100 mph/160 km/h,
adjust pressures to the respective tire inflation
pressures listed on the following pages in the
column for traveling speeds up to 100 mph/
160 km/h to achieve optimum driving comfort.
Seite 228MobilityWheels and tires228
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These tire inflation pressures can also be
found on the driver's side door pillar when the
driver's door is open.
Do not exceed the maximum permissible
speed
The maximum permissible speed for these tire
pressures is 100 mph/160 km/h Do not exceed
this speed; otherwise, tire damage and acci‐
dents could occur.◀
Tire inflation pressures for driving
above 100 mph or 160 km/h
Adjust the tire inflation pressures
To drive at maximum speeds in excess of
100 mph/160 km/h, adjust pressures to the re‐
spective tire inflation pressures listed on the
following pages in the column for traveling
speeds including those exceeding 100 mph or
160 km/h. Otherwise, tire damage and acci‐
dents could occur.◀
Observe all national and local maximum speed
limits; otherwise, violations of the laws could
occur.
Tire inflation pressures Z4 sDrive28i

Tire sizePressure specifications in bar/PSITraveling speeds of up
to 100 mph/160 km/hTraveling speeds in‐
cluding those exceed‐
ing 100 mph/160 km/hAll pressure specifications in the table are in‐
dicated in bar/psi with cold tires.
Cold = ambient temperatureWithout Sport Package:225/45 R 17 91 V RSC
225/45 R 17 91 H M+S RSC
225/45 R 17 94 V M+S XL RSC2.5/363.0/442.5/363.0/44Front: 225/45 R 17 91 V RSC2.5/36-2.5/36-Rear: 255/40 R 17 94 V RSC-2.7/39-2.7/39Front: 225/40 R 18 88 W RSC2.5/36-2.5/36-Rear: 255/35 R 18 90 W RSC-2.9/42-2.9/42Front: 225/35 R 19 88 Y XL RSC2.5/36-2.5/36-Rear: 255/30 R 19 91 Y XL RSC-2.9/42-2.9/42Seite 229Wheels and tiresMobility229
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Tire sizePressure specifications in bar/PSIWith Sport Package:225/45 R 17 91 W RSC
225/45 R 17 91 H M+S RSC
225/45 R 17 94 V M+S XL RSC2.5/363.0/442.5/363.0/44Front: 225/45 R 17 91 W RSC2.5/36-2.5/36-Rear: 255/40 R 17 94 W RSC-2.7/39-2.7/39Front: 225/40 R 18 88 W RSC2.5/36-2.6/38-Rear: 255/35 R 18 90 W RSC-2.9/42-3.1/45Front: 225/35 R 19 88 Y XL RSC2.5/36-2.5/36-Rear: 255/30 R 19 91 Y XL RSC-2.9/42-3.0/44More details on the permissible load and weights, refer to page 264.
Tire inflation pressures Z4 sDrive35i

Tire sizePressure specifications in bar/PSITraveling speeds of up
to 100 mph/160 km/hTraveling speeds in‐
cluding those exceed‐
ing 100 mph/160 km/hAll pressure specifications in the table are in‐
dicated in bar/psi with cold tires.
Cold = ambient temperatureWithout Sport Package:225/45 R 17 91 H M+S RSC
225/45 R 17 94 V M+S XL RSC2.5/363.0/442.5/363.0/44Front: 225/45 R 17 91 V RSC2.5/36-2.5/36-Rear: 255/40 R 17 94 V RSC-2.7/39-2.7/39Front: 225/40 R 18 88 W RSC2.5/36-2.5/36-Rear: 255/35 R 18 90 W RSC-2.9/42-2.9/42Front: 225/35 R 19 88 Y XL RSC2.5/36-2.5/36-Rear: 255/30 R 19 91 Y XL RSC-2.9/42-2.9/42Seite 230MobilityWheels and tires230
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Tire sizePressure specifications in bar/PSIWith Sport Package:225/45 R 17 91 H M+S RSC
225/45 R 17 94 V M+S XL RSC2.5/363.0/442.5/363.0/44Front: 225/45 R 17 91 W RSC2.5/36-2.5/36-Rear: 255/40 R 17 94 W RSC-2.7/39-2.8/41Front: 225/40 R 18 88 W RSC2.5/36-2.7/39-Rear: 255/35 R 18 90 W RSC-2.9/42-3.2/46Front: 225/35 R 19 88 Y XL RSC2.5/36-2.5/36-Rear: 255/30 R 19 91 Y XL RSC-2.9/42-3.0/44More details on the permissible load and weights, refer to page 264.
Tire inflation pressures Z4 sDrive35is

Tire sizePressure specifications in bar/PSITraveling speeds of up
to 100 mph/160 km/hTraveling speeds in‐
cluding those exceed‐
ing 100 mph/160 km/hAll pressure specifications in the table are in‐
dicated in bar/psi with cold tires.
Cold = ambient temperature225/45 R 17 91 H M+S RSC
225/45 R 17 94 V M+S XL RSC2.5/363.0/442.5/363.0/44Front: 225/40 R 18 88 W RSC2.7/39-2.7/39-Rear: 255/35 R 18 90 W RSC-3.2/46-3.2/46Front: 225/35 R 19 88 Y XL RSC2.5/36-2.5/36-Rear: 255/30 R 19 91 Y XL RSC-3.0/44-3.0/44More details on the permissible load and weights, refer to page 264.Tire identification marks
Knowledge of the labeling on the side of the
tire makes it easier to identify and choose the
right tires.Tire size
Example: 225/45 R 17 91 V
225: nominal width in mm
45: aspect ratio in %Seite 231Wheels and tiresMobility231
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If necessary, have the vehicle towed.◀Repair of tire damage
For safety reasons, the manufacturer of
your vehicle recommends that you do not have
damaged tires repaired; they should be re‐
placed. Otherwise, damage can occur as a re‐
sult.◀
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
remain drivable to a restricted degree in the
event of a pressure loss.
Driving can continue with a damaged tire, refer
to page 96.
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
obtained 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 con‐
tact and with it, the risk of severe accidents.
The manufacturer of your vehicle cannot eval‐
uate non-approved wheels and tires to deter‐
mine if they are suited for use, and therefore
cannot ensure the operating safety of the vehi‐
cle if they are mounted.◀Seite 234MobilityWheels and tires234
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or SAE 5W-30, or malfunctions or engine dam‐
age may occur.◀
The engine oil quality is critical for the life of
the engine.
Some oil types are not available in all coun‐
tries.
Approved oil typesSpecificationBMW High Performance SAE 5W-30BMW Longlife-01BMW Longlife-01 FE
Further information on approved oil types can
be obtained from the service center.
Alternative oil types If the approved engine oils are not available, up
to 1 US quart/liter of an oil with the following
specification can be used:
SpecificationAPI SM or a higher quality standard
Oil change
The manufacturer of your vehicle recommends
having the engine oil changed by a service
center.
Coolant
General information Danger of burns from hot engine
Do not open the cooling system while
the engine is hot; otherwise, escaping coolant
may cause burns.◀
Suitable additives
Only use suitable additives; otherwise,
engine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
Not all commercially available additives are
suitable for your vehicle. Ask your service cen‐
ter for suitable additives.
Checking the coolant level1.Let the engine cool.2.Turn the expansion tank cap counterclock‐
wise slightly to allow any accumulated
pressure to escape, then continue turning
to open.3.The filling level indicator 1 in the filler neck
indicates the coolant level. The coolantSeite 241Engine compartmentMobility241
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CareVehicle equipmentThis 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
systems.
When using the features and systems descri‐
bed here, adhere to local regulations.
Car washes Notes Steam jets or high-pressure washers
When using steam jets or high-pressure
washers, hold them a sufficient distance away
and use a maximum temperature of
140 ℉/60 ℃.
Holding them too close or using excessively
high pressures or temperatures can cause
damage or preliminary damage that may then
lead to long-term damage.
Follow the operating instructions for the high-
pressure washer.◀
Cleaning sensors/cameras with high-
pressure washers
When using high-pressure washers, do not
spray the seals of the retractable hardtop and
the exterior sensors and cameras, for Park Dis‐
tance Control, for instance, for extended peri‐
ods of time and only from a distance of at least
12 in/30 cm.◀
Regularly remove foreign bodies, such as
leaves, from the area below the windshield
when the hood is open.Wash your vehicle frequently, particularly in
winter.
Intense soiling and road salt can damage the
vehicle.
Washing in automatic car washes Give preference to cloth car washes or those
that use soft brushes in order to avoid paint damage.
Notes Note the following:▷Make sure that the wheels and tires are not
damaged by the transport mechanisms.▷Fold in the exterior mirrors; otherwise, they
may be damaged, depending on the width
of the vehicle.▷Deactivate the rain sensor, refer to
page 64, to avoid unintentional wiper acti‐
vation.▷Unscrew the road antenna.
Guide rails in car washes
Avoid car washes with guide rails higher
than 4 in/10 cm; otherwise, the vehicle body
could be damaged.◀
Before driving into a car wash The vehicle is able to roll if the following steps
are taken.
Manual transmission
1.Shift to neutral.2.Release the parking brake, refer to
page 61.3.Switch the engine off.4.Leave the remote control in the ignition
lock.Seite 257CareMobility257
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 101
Acceleration assistant, Launch Control 71
Accident, refer to Initiating an Emergency Request 251
Activated charcoal filter with automatic climate con‐
trol 114
Adaptive brake lights, see Brake force display 100
Adaptive Light Control 88
Additional telephone 194
Additives, coolant 241
Additives, oil 240
After washing vehicle 258
Airbags 92
Airbags, indicator/warning light 94
Air circulation, refer to Recir‐ culated air mode 110, 113
Air conditioner 110
Air conditioning mode, air conditioner 110
Air conditioning mode, auto‐ matic climate control 112
Air conditioning mode, venti‐ lation 111, 115
Air distribution, auto‐ matic 113
Air distribution, individ‐ ual 111
Air distribution, manual 111
Air flow rate 111, 114
Airing, refer to Ventila‐ tion 111, 115
Air outlets, refer to Air vents 109 Air pressure, refer to Tire in‐
flation pressure 228
Air supply, air condi‐ tioner 110
Air supply, automatic climate control 112
Air supply, ventila‐ tion 111, 115
Air vents 109
Air vents, refer to Ventila‐ tion 111, 115
Alarm system 41
Alarm system, avoiding unin‐ tentional alarms 42
Alarm system, ending an alarm 41
Alarm system, interior motion sensor 42
Alarm system, tilt alarm sen‐ sor 42
All around the headliner 19
All-season tires, refer to Win‐ ter tires 235
Alternating-code hand-held transmitter 117
Alternative oil types 240
AM/FM station 164
Announcement, navigation, see Spoken instruc‐
tions 153
Antifreeze, coolant 241
Antifreeze, washer fluid 65
Antilock Brake System, ABS 101
Anti-slip control, refer to DSC 101
Anti-theft protection 34
Anti-theft protection, lug bolts 249
Appointments 210 Approved axle loads, refer to
Weights 264
Approved engine oils 240
Approved gross vehicle weight, refer to
Weights 264
Armrest, refer to Center arm‐ rest 124
Arrival time, refer to Com‐ puter 75
Ashtray 120
Assistance systems, refer to Driving stability control sys‐
tems 101
Assistance when driving off 104
Audio device, external 125
Audio playback 173
Audio playback, Blue‐ tooth 185
Automatic air distribu‐ tion 113
Automatic air flow 113
Automatic car wash 257
Automatic climate con‐ trol 112
Automatic climate control, automatic air distribu‐
tion 113
Automatic cruise control 105
Automatic Curb Monitor 52
Automatic headlamp con‐ trol 88
Automatic recirculated air control 113
Automatic Start/Stop func‐ tion 59
Automatic transmission, 7- gear with dual clutch 68
Automatic transmission, 8- gear 66 Seite 274ReferenceEverything from A to Z274
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Engine, starting, Comfort Ac‐cess 39
Engine, starting, Start/Stop button 57
Engine, stopping, Start/Stop button 57
Engine, switching off 59
Engine temperature 74
Entry comparison 25
Entry lamps, refer to Interior lamps 91
Equalizer 162
Equipment, interior 116
Error messages, refer to Check Control 84
ESP Electronic Stability Pro‐ gram, refer to DSC 101
Exchanging wheels/tires 234
Exhaust system 131
Exterior mirrors 52
Exterior mirrors, automatic dimming 53
Exterior mirrors, automatic heating 53
Exterior mirrors, folding in and out 53
Exterior mirrors, setting 52
External audio device 125
External devices 182
External start 252
External temperature dis‐ play 73
External temperature display, changing the unit of meas‐
ure 78
External temperature display, on computer 78
External temperature warn‐ ing 73
Eyes for securing cargo 134
F
Fader 162
Failure messages, refer to Check Control 84 Failure of an electrical acces‐
sory 250
False alarm, avoiding uninten‐ tional alarms 42
False alarm, ending an alarm 41
Fastening safety belts, refer to Safety belts 50
Filter, refer to Microfilter/acti‐ vated-charcoal filter with au‐
tomatic climate control 114
Filter, refer to Microfilter for air conditioner 111
Fine wood, care 259
First aid kit 252
Flashing when locking/ unlocking 36
Flat tire, Flat Tire Monitor FTM 94
Flat Tire Monitor FTM 94
Flat Tire Monitor, snow chains 235
Flat tire, Tire Pressure Moni‐ tor TPM 96
Flat tire, warning light 95
Flat tire, wheel change 248
Flooding 131
Floor carpet, care 260
Floor mats, care 260
FM/AM station 164
Foot brake 131
Footwell lights, refer to Inte‐ rior lights 91
For your own safety 7
Front airbags 92
Front passenger airbags, de‐ activating 93
FTM Flat Tire Monitor 94
Fuel, average consump‐ tion 75
Fuel consumption display, average fuel consump‐
tion 75
Fuel display 74
Fuel filler flap 224 Fuel filler flap, unlocking in
case of an electrical mal‐
function 224
Fuel gauge 74
Fuel recommendation 226
Fuel, refer to Average fuel consumption 75
Fuel tank capacity, refer to Filling capacities 265
Fuel tank contents, refer to Filling capacities 265
Fuses 250
G
Garage door opener, refer to Integrated universal remote
control 116
Gasoline display 74
Gasoline, fuel recommenda‐ tion 226
Gas station recommenda‐ tion 153
Gear display, 7-gear auto‐ matic transmission 69
Gear display, 8-gear auto‐ matic transmission 68
General driving notes 130
Glove compartment 124
GPS navigation, refer to Navi‐ gation system 140
Grilles, refer to Air vents 109
Gross vehicle weight, refer to Weights 264
H Handbrake, refer to Parking brake 61
Hand-held transmitter, alter‐ nating code 117
Hardtop 44
Hazard warning system 18
HD Radio 165
Head airbags 92 Seite 278ReferenceEverything from A to Z278
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