2012 BMW Z4 SDRIVE35I width

Seat tilt
Pull the lever and move the seat to the desired
tilt. After releasing the lever, apply your weight
to the seat or lift it off to make sure the seat en‐
gages properly.
Thigh support
Pull the lever and move the thigh support for‐
ward or back.
Adjusting electrically
1Longitudinal direction2Height3Seat tilt4Backrest tilt
Lumbar support
The curvature of the seat backrest can be ad‐
justed in such a way that it supports the lumbar
region of the spine.
The lower back and the spine are supported for
upright posture.
▷Press the front/rear section of the switch.
The curvature is increased/decreased.▷Press the upper/lower section of the switch.
The curvature is shifted up/down.
Backrest width
Change the width of the backrest using the side
wings to adjust the lateral support.
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Press the front/rear section of the switch.
The backrest width decreases/increases.
Seat heating
Press the button once for each temper‐
ature level.
The maximum temperature is reached when
three LEDs are lit.
If the trip is continued within approx. 15 minutes,
the seat heating is activated automatically with
the temperature set last.
Switching off
Press the button longer.
The LEDs go out.
Safety belts
General information
Always make sure that safety belts are being
worn by all occupants before driving away.
Although airbags enhance safety by providing
added protection, they are not a substitute for
safety belts.
Seats with safety belt
The vehicle has two seats, each of which is
equipped with a safety belt.
The shoulder strap's anchorage point will be
correct for adult seat occupants of every build if
the seat is correctly adjusted.
One person per safety belt
Never allow more than one person to wear
a single safety belt. Never allow infants or small
children to ride on a passenger's lap.◀
Putting on the belt
Lay the belt, without twisting, snugly
across the lap and shoulders, as close to the
body as possible. Make sure that the belt lies low
around the hips in the lap area and does not
press on the abdomen. Otherwise, the belt can
slip over the hips in the lap area in a frontal im‐
pact and injure the abdomen.
The safety belt must not lie across the neck, rub
on sharp edges, be routed over solid or breaka‐
ble objects, or be pinched.◀
Reduction of restraining effect
Avoid wearing clothing that prevents the
belt from fitting properly, and pull the shoulder
belt periodically to readjust the tension across
your lap; otherwise, the retention effect of the
safety belt may be reduced.◀Seite 38ControlsAdjusting38
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Buckling the belt
Make sure you hear the latch plate engage in the
belt buckle.
Unbuckling the belt
1.Hold the belt firmly.2.Press the red button in the belt buckle.3.Guide the belt back into its reel.
Safety belt reminder for driver and
passenger
The indicator lamp lights up and a sig‐
nal sounds. Check whether the safety
belt has been fastened correctly.
The safety belt reminder is active at speeds
above approx. 5 mph/8 km/h. It can also be ac‐
tivated if objects are placed on the front pas‐
senger seat.
Damage to safety belts
In the case of strain caused by accidents or
damage:
Have the safety belts, including the safety belt
tensioners, replaced and have the belt anchors
checked.
Checking and replacing safety belts
Have the work performed only by your
service center; otherwise, it cannot be ensured
that this safety feature will function properly.◀
Seat and mirror memory
General information
Two different driver's seat and exterior mirror
positions can be stored and retrieved for each
remote control.
Settings for the backrest width and lumbar sup‐
port are not stored.
Storing
1.Switch on the radio ready state or the igni‐
tion, refer to page 45.2.Adjust the seat and exterior mirrors to the
desired positions.3. Press the button. The LED in the
button lights up.4.Press the desired memory button 1 or 2: the
LED goes out.
If the M button is pressed accidentally:
Press the button again. The LED goes
out.
Calling up settings Do not retrieve the memory setting while
driving
Do not retrieve the memory setting while driving,
as an unexpected movement of the seat or
steering wheel could result in an accident.◀
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Activating1.Slide the mirror changeover switch to the
driver's side mirror position, arrow 1.2.Shift into reverse or engage transmission
position R.
Deactivating
Slide the mirror changeover switch to the pas‐
senger side mirror position, arrow 2.
Fold in and out
Press button 2.
Possible up to approx. 15 mph/20 km/h.
For example, this is advantageous
▷In car washes.▷In narrow streets.▷For folding back mirrors that were folded
away manually.
Mirrors that were folded in are folded out auto‐
matically at a speed of approx. 25 mph/40 km/h.
Fold in the mirror in a car wash
Before entering an automatic car wash,
fold in the exterior mirrors by hand or with the
button; otherwise, they could be damaged, de‐
pending on the width of the vehicle.◀
Automatic heating
Both exterior mirrors are heated automatically
while the engine is running or the ignition is
switched on.
Interior rearview mirror
Reducing the blinding effect
Blinding effect from behind when driving at
night: turn the knob.
Interior rearview and exterior mirrors,
automatic dimming feature
The automatic dimming feature of the interior
rearview and exterior mirrors is controlled by two
photo cells in the interior rearview mirror. One
photo cell is in the mirror frame, see arrow; the
other is on the back of the mirror.
For proper operation:
▷Keep the photocells clean.▷Do not cover the area between the inside
rearview mirror and the windshield.Seite 41AdjustingControls41
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Backrest width1.Adjust the backrest width to its widest set‐
ting, refer to page 37.2.Install the child seat.
Backrest width for the child seat
Before installing a child restraint fixing
system in the front passenger seat, the backrest
width must be opened completely. Do not
change the adjustment after this; otherwise, the
stability of the child seat will be reduced.◀
Child seat security
The safety belt for the passenger can be locked
to prevent it from being pulled out when it is used
to secure child restraint systems.
To lock the safety belt
1.Secure the child restraint fixing system with
the belt.2.Pull out the belt webbing completely.3.Allow the belt webbing to be pulled in and
pull it taut against the child restraint fixing
system.
The safety belt is locked.
To unlock the safety belt
1.Open the belt buckle.2.Remove the child restraint fixing system.3.Allow the belt webbing to be pulled in com‐
pletely.Child restraint fixing system with tether
strap
For Canadian Customers only
The following statement is required by Trans‐
port Canada
This vehicle is not equipped with user-ready
tether anchorages. As such neither a child re‐
straint system, nor a booster cushion, requiring
the use of a tether strap can be properly secured
in the vehicle.Seite 44ControlsTransporting children safely44
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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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Tire Identification Number
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
DOT code:
DOT xxxx xxx 3311
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
3311: tire age
Tire age
The tire manufacturing date is contained in the
tire identification mark: DOT ... 3311 means that
the tire was manufactured in the week 33 of
2011.
BMW recommends that you replace all tires af‐
ter 6 years at most, even if some tires may last
for 10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.◀
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded
150 would wear one and one-half (11/2) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,however, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteristics
and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire’s ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfa‐
ces of asphalt and concrete. A tire marked C may
have poor traction performance.
The traction grade assigned to this tire is based
on straight-ahead braking traction tests, and
does not include acceleration, cornering, hydro‐
planing, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire’s resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus‐
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or in
combination, can cause heat buildup and pos‐
sible tire failure.◀Seite 159Wheels and tiresMobility159
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CareVehicle 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.
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 dam‐
age 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 periods
of time and only from a distance of at least 12 in/
30 cm.◀
Wash your vehicle frequently, particularly in win‐
ter.
Intense soiling and road salt can damage the ve‐
hicle.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 51,
to avoid unintentional wiper activation.▷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 49.3.Switch the engine off.4.Leave the remote control in the ignition lock.
Sport automatic transmission
1.Insert the remote control into the ignition
lock, even with Comfort Access.2.Engage transmission position N.3.Release the parking brake, refer to page 49.4.Switch the engine off.5.Leave the remote control in the ignition lock
so that the vehicle can roll.Seite 182MobilityCare182
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