2012 BMW Z4 SDRIVE35I inflation pressure

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 sys‐
tems.
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 pressure
and correct it as needed: at least twice a month
and before a long trip. If you fail to observe this
precaution, you may be driving on tires with in‐
correct 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
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.
After correcting the tire inflation pressure, rein‐
itialize the Flat Tire Monitor, refer to page 75.
After correcting the tire inflation pressure, reset
the Tire Pressure Monitor, refer to page 78.Pressure specifications
The tables below provide all the correct inflation
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 serv‐
ice center.
For correct identification of the right tire inflation
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, ad‐
just 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.
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.◀
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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 fol‐
lowing pages in the column for traveling speedsincluding those exceeding 100 mph or 160 km/
h. Otherwise, tire damage and accidents could
occur.◀
Observe all national and local maximum speed
limits; otherwise, violations of the laws could oc‐
cur.
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-2.9/42-2.9/42With 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-2.7/39-2.7/39Seite 156MobilityWheels and tires156
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Tire sizePressure specifications in bar/PSIFront: 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 204.
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-2.9/42-2.9/42With 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-Seite 157Wheels and tiresMobility157
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Tire sizePressure specifications in bar/PSIRear: 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 204.
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 204.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 %
R: radial tire code
17: rim diameter in inches91: load rating, not for ZR tires
V: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/hSeite 158MobilityWheels and tires158
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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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12CauseHow to respondTire Pressure Monitor not initialized.Check the inflation pressure and
reset the system, refer to
page 78.The small lamp flashes yellow and then stays
on, the large lamp lights up in yellow:Tire Pressure Monitor failed. Punctures are
not indicated.Have the system checked.Disturbance by systems or devices with the
same radio frequency. After leaving the area
of the disturbance, the system automatically
becomes active again.In vehicles with the Tire Pressure Monitor
The small lamp flashes yellow and then stays
on, the large lamp lights up in yellow:Tire Pressure Monitor failed. Punctures are
not indicated.Have the system checked. Ob‐
serve the additional information,
refer to page 79.A wheel without TPM electronics is mounted.Lights up in yellow: transmission malfunctionHave the system checked imme‐
diately.
When parking the vehicle, set the
parking brake since transmission
position P may be malfunction‐
ing as well.Malfunction in transmission position P.It may be possible to correct the
malfunction by restarting the en‐
gine.The gears that can be selected are restricted.After switching off the engine,
transmission position P is en‐
gaged automatically. It may not
be possible to continue driving.Transmission limp-home program active with
restricted range of gears, possibly with re‐
duced acceleration.You can continue your journey,
but moderate your speed and ex‐
ercise due caution. Have the sys‐
tem checked immediately.Gears can be engaged without depressing the
brake.Always depress the brake to en‐
gage a gear.Seite 196MobilityIndicator/warning lamps196
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Footwell lamps, refer to Inte‐rior lamps 72
For your own safety 6
Front airbags 73
FTM Flat Tire Monitor 75
Fuel– Refer to Average fuel con‐
sumption 62
Fuel, average consump‐
tion 62
Fuel consumption display
– Average fuel consump‐
tion 62
Fuel display 61
Fuel filler flap
– Unlocking in case of an elec‐
trical malfunction 152
Fuel gauge 61
Fuel quality 154
Fuel tank capacity, refer to Fill‐ ing capacities 206
Fuel tank contents, refer to Filling capacities 206
Fuses 175
G
Garage door opener, refer to Universal Garage Door
Opener 96
Gasoline 154
Gasoline display 61
Gear display
– 7-gear automatic transmis‐
sion 55– 8-gear automatic transmis‐
sion 55
General driving notes 108
Glove compartment 103
Grilles, refer to Air vents 89
Gross vehicle weight, refer to Weights 204
H
Handbrake, refer to Parking brake 49
Hand-held transmitter, alter‐
nating code 97
Hands-free microphone 15
Hardtop 33
Hazard warning system 15
Head airbags 73
Headlamp control, auto‐ matic 69
Headlamp courtesy delay fea‐ ture 68
Headlamp flasher 50
Headlamps, care 183
Headlamps, cleaning 51
Headliner 16
Heating 89
Heating– Mirrors 41– Rear window 91, 94– Seats 38
Heavy cargo, stowing 111
Height adjustment
– Seats 36– Steering wheel 42
Height, refer to Dimen‐
sions 203
High-beam Assistant 71
High beams 70
High beams/low beams, refer to High-beam Assistant 71
High beams, headlamp flasher 70
High-pressure washers 182
Hills 110
Hill start assistant, refer to Drive-off assistant 84
Holder for beverages 105
Holder for remote control, re‐ fer to Ignition lock 45
Homepage 6
Hood 164
Horn 12
Hot exhaust system 109
Hydroplaning 109
I
Ice warning, refer to External temperature warning 60
Icy roads, refer to External temperature warning 60
Identification marks– Tires 158
Ignition 46
Ignition
– Switched off 46– Switched on 46
Ignition key position 1, refer to
Radio ready state 45
Ignition key position 2, refer to Ignition on 46
Ignition key, refer to Remote control with integrated
key 20
Ignition lock 45
Indication of a flat tire 76
Indicator and warning lamps 15
Indicator and warning lamps, Tire Pressure Monitor
TPM 78
Individual air distribution 90
Inflation pressure monitoring, refer to Tire Pressure Monitor
TPM 77
Inflation pressure, refer to Tire inflation pressure 155
Inflation pressure warning, tires 75
Initializing
– Compass, refer to Calibrat‐
ing 99– Flat Tire Monitor FTM 76
Installation location
– Telephone 103
Instrument cluster 14
Instrument lighting 71
Instrument panel, refer to In‐ strument cluster 14
Instruments, refer to Cock‐ pit 12
Integrated key 20
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Refueling 152
Remaining range, refer to Range 62
Remote control– Battery replacement 30– Comfort Access 28– Garage door opener 96– Malfunction 25, 29– Removing from the ignition
lock 45– Trunk lid 23– Universal 96
Replacement fuses, refer to
Spare fuses 175
Replacement remote con‐ trol 20
Replacing wheels/tires 161
Reporting safety defects 8
Reservoir for washer fluid 52
Restraining systems
– Refer to Safety belts 38
Restraint system
– For children 43
Retaining straps, securing
cargo 112
Retractable hardtop
– Convenient opening and
closing 23– Opening and closing 34– Remote control 23
Retreaded tires 161
Reverse gear
– 7-gear automatic transmis‐
sion 56– 8-gear automatic transmis‐
sion 53– Manual transmission 52
Roadside parking lamps 70
Roadworthiness test 65
Roof load capacity 204
Roof, refer to Retractable hardtop 33
Rope, refer to Tow-starting and towing 180
RPM, refer to Engine data 202
RSC Runflat System Compo‐
nent, refer to Run-flat
tires 161
Rubber components, care 184
Run-flat tires 161
Run-flat tires– Tire inflation pressure 155
Running lights, refer to Parking
lamps/low beams 68
S
Safety 6
Safety-belt height adjust‐ ment 39
Safety belts 38
Safety belts
– Damage 39– Indicator/warning lamp 39– Reminder 39
Safety belts, care 184
Safety systems
– Airbags 73– Safety belts 38
Safety tires 161
Saving fuel 112
Screw thread for tow fit‐ ting 179
Seat adjustment, electric 37
Seat adjustment, mechani‐ cal 36
Seat and mirror memory 39
Seat and mirror memory, re‐ trieving automatically 24
Seat Belt Reminder, refer to Safety belt reminder 39
Seat belts
– Refer to Safety belts 38
Seat heating 38
Seats
– Adjusting 36– Adjusting electrically 37– Heating 38– Memory, refer to Seat and
mirror memory 39– Storing the setting, refer to
Seat and mirror memory 39Sensors, care 185
Service and warranty 7
Service requirements, CBS Condition Based Serv‐
ice 168
Service requirements, dis‐ play 65
Service, Roadside Assis‐ tance 177
Servotronic 84
Settings– Clock, 12h/24h format 63
Settings and information 62
Settings, configuring, refer to Personal Profile 20
Shift paddles on steering
wheel
– 7-gear automatic transmis‐
sion 57– 8-gear automatic transmis‐
sion 54
Side airbags 73
Side windows, refer to Win‐ dows 31
Signal horn, refer to Horn 12
Sitting safely 36
Ski bag, refer to Through- loading opening with
integrated transport bag 101
Slot for remote control 45
Snap-in adapter, mobile phone 143
Snap-in adapter, refer to Cen‐ ter armrest storage compart‐
ment 103
Socket, OBD Onboard Diag‐ nostics 169
Socket, refer to Connecting electrical devices 100
SOS, refer to Emergency Re‐ quest, initiating 176
Spare fuses 175
Special equipment, series equipment 6
Specified oil types 166
Speed, average 62
Speedometer 14
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