2006 BMW Z4 COUPE maintenance

Wheels and tires
80
Wheels and tires
Tire inflation pressure
Information for your safety
It is not merely the tire's service life, but also
driving safety and driving comfort that largely
depend on the condition of the tires and the
maintenance of the specified tire pressure.
Check tire inflation pressures regularly
and correct them if necessary: at least
every two weeks and before every extended
journey. If you fail to observe this precaution
you may be driving on tires with incorrect tire
pressures, a condition that can not only com-
promise your vehicle's driving stability, but also
lead to tire damage and the risk of an accident.
Do not drive with deflated, i.e. flat tires, except
when using Run-Flat Tires. A flat tire will seri-
ously impair your vehicle's handling and braking
response. Attempts to drive on a flat tire can
lead to loss of control over the vehicle.<
Checking pressure
Check the tire inflation pressures only 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. Warm tires
have higher inflation pressures.
Inflation pressure specifications
The specified inflation pressures for your stan-
dard tires are provided on the placard on the
B-pillar and are visible when the driver's door is
open.Reinitialize the Flat Tire Monitor after cor-
recting the tire inflation pressure. Refer to
page51.<
The following tire inflation pressure tables show
the inflation pressures for the specified tire
sizes at ambient temperature.
The inflation pressures in the table apply
to BMW-approved tire sizes and recom-
mended tire brands. Your BMW Center will be
glad to supply this information.<
To determine the correct tire inflation pressure
for your tires, refer to the following tables.
Tire size
The inflation pressures in the table apply to
BMW-approved tire sizes and recommended
tire brands. Your BMW Center will be glad to
supply this information.

Reference
At a glance
Controls
Driving tips
Mobility
91
Maintenance
BMW Maintenance System
The BMW Maintenance System helps maintain
the road safety and operating reliability of your
BMW.
Regular maintenance is not only necessary for
the safety of your vehicle, but also plays a sig-
nificant role in maintaining the resale value of
your vehicle.
Service interval display
The BMW Maintenance System takes the vehi-
cle's operating conditions into account for the
service intervals:
From a maintenance point of view,
62,100 miles/100,000 km accumulated in
short-distance urban driving are not the same
as 62,100 miles/100,000 km accumulated at
moderate cruising speeds in long-distance
highway travel.
The BMW Maintenance System includes the
Engine Oil Service and Inspections I and II.
Determining the maintenance intervals based
on the actual loads on the vehicle covers every
kind of operating situation. Minimal use drivers,
who drive fewer than about 6,210 miles/
10,000 km per year, should nevertheless have
the oil changed at least every 2 years since
engine oil deteriorates over time, regardless of
use.
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW Center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle’s Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<
Socket for On-Board
Diagnosis OBD
Vehicle components that are relevant to the
composition of exhaust emissions can be
checked with a device via the OBD socket.
This socket is located on the driver's side to the
left, on the bottom of the instrument panel
underneath a cover.

Maintenance
92
Exhaust emission values
The warning lamp lights up: the
exhaust emission values have wors-
ened. Have the car checked as soon as
possible.
The lamps flash under certain conditions. This
indicates excessive misfiring of the engine. If
this happens, you should reduce your speed
and visit your nearest BMW Center as soon as
possible. Severe engine misfiring can quickly
lead to serious damage of emissions-related
components, especially the catalytic converter.
Canadian models display this warning
lamp.
If the gas cap is not properly tightened,
the OBD system will assume that fuel
vapor is escaping. An indicator will then light up.
If the cap is then tightened, the indicator will go
out within a few days.<
Event Data Recorders
Your vehicle may be equipped with one or sev-
eral measuring or diagnostic modules or a
device for recording or sending certain vehicle
data or information. In addition, if you have
signed a subscription contract for BMW Assist,
certain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.
Care
Important information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.

Reference
At a glance
Controls
Driving tips
Mobility
93
Replacing components
Onboard tool kit
The onboard tool kit is stored in a tool pouch. It
is located in the cargo bay beneath the floor
panel.
Windshield wiper blades
1.Fold up the wiper arm.
2.Place the wiper blade in a position at right
angles to the wiper arm.
3.Press the locking spring.
4.Fold in the wiper blade and unhook it in the
direction of the windshield.
5.Pull the wiper blade past the wiper arm
toward the top.
6.Insert the new wiper blade and press it on
until it audibly engages.
Lamps and bulbs
Lamps and bulbs make an essential contribu-
tion to vehicle safety. They should, therefore, be handled carefully. BMW recommends hav-
ing your BMW Center perform any work that
you do not feel competent to perform yourself
or that is not described here.
Do not touch the glass portion of a new
bulb with your bare hands since even
small amounts of impurities burn into the sur-
face and reduce the service life of the bulb. Use
a clean cloth, paper napkin or a similar material,
or hold the bulb by its metallic base.<
A replacement bulb set is available from your
BMW Center.
When working on electrical systems,
always begin by switching off the corre-
sponding consumers, otherwise short-circuits
could result. To avoid possible injury or equip-
ment damage when replacing bulbs, be sure to
observe any instructions provided by the bulb
manufacturer.<
For care and maintenance of the headlamps,
please follow the instructions in the separate
Caring for your vehicle brochure.
If the routine for changing a particular
bulb is not described here, please contact
your BMW Center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.<
Light-emitting diodes LEDs
Control elements, display units and other inte-
rior equipment in your vehicle use a light-emit-
ting diode behind a cover as a light source.
These light-emitting diodes, which operate
using a concept similar to that applied in con-
ventional lasers, are officially designated as
Class 1 light-emitting diodes.
Do not remove the covers, and do not
look directly at the unfiltered light for sev-
eral hours. Otherwise, your eyes could suffer
irritation of the retina.<

Reference
At a glance
Controls
Driving tips
Mobility
97
Jacking points
The jacking points are located at the positions
indicated in the illustration.
Vehicle battery
Maintenance
The battery is completely maintenance-free.
This means that the original electrolyte will nor-
mally last for the service life of the battery under
moderate climatic conditions. Your BMW Cen-
ter will be happy to advise you if you have any
questions concerning the battery.
Indicator lamp
The indicator lamp lights up:
The battery is no longer being charged.
The alternator drive belt is defective or
there is a malfunction in the charging circuit of
the alternator. Have the system checked as
soon as possible.
If the drive belt is defective, pull over and
switch off the engine immediately to pre-
vent overheating and serious engine damage.
If the onboard supply voltage drops to a very
low level, increased steering effort may also be
necessary.<
Charging the battery
Charge the battery in the vehicle only when the
engine has been switched off. Connections,
refer to Jump-starting on page99.
Battery disposal
After changing a battery, have the used
battery disposed of by your BMW Center or bring it to a recycling point. Maintain the bat-
tery in an upright position for transport and stor-
age. Secure the battery against tilting when
transporting.<
Power loss
After a temporary power loss, the functioning of
some equipment may be limited and require ini-
tialization. Individual settings are also lost and
must be reset:
>Seat memory
The positions must be stored again, refer to
page32.
>Clock must be reset, refer to page47.
Fuses
Do not attempt to repair a burned fuse or
replace it with a fuse having a different
color or amperage rating. To do this could
cause a fire in the vehicle as a result of circuit
overload.<
You will find the fuses and information on their
respective allocation behind the glove compart-
ment.
1.Open the glove compartment.
2.Press the lock on the left, arrow1.
3.Press the lock on the right, arrow2.
4.Swing the glove compartment down.
Spare fuses and plastic tweezers for grasping
the fuses are found in the onboard tool kit; refer
to page93.

Reference
At a glance
Controls
Driving tips
Mobility
113
Backup lamps
– bulb replacement96
Bandages, refer to First-aid
kit99
Bar, refer to Towing
methods101
Battery97
– charging97
– disposal97
– indicator/warning
lamp12,97
– jump-starting99
– power supply interruption97
– remote control18
Being towed101
Belts, refer to Safety belts33
Belt tensioner, refer to Safety
belts33
Beverage holders65
Blower, refer to Air flow
rate59,62
BMW Homepage4
BMW Maintenance
System91
Bottle holders, refer to
Beverage holders65
Brake assist, refer to Dynamic
Brake Control DBC49
Brake fluid90
– indicator/warning lamp13
– level90
– warning lamp90
Brake Force Display52
Brake hydraulics, refer to
Brake system90
Brake hydraulic system
– indicator/warning lamp13
Brake lamps
– brake force display52
– bulb replacement96
– indicator lamp, defective
lamp13
Brake pads90
– break-in procedures70
– warning lamp90
Brake pad wear indicator
– brake pads90
– indicator/warning lamp13Brake rotors72
– brake system72
– break-in procedures70
Brakes
– ABS49
– brake fluid90
– brake pads90
– braking safely71
– break-in procedures
70
– indicator/warning
lamps13,50
– parking brake39
Brake system90
– brake fluid90
– brake pads90
– break-in procedures70
– disc brakes72
– indicator/warning lamp13
Brake wear warning90
Breakdown
– Flat Tire Monitor51
Breaking in the clutch70
Breaking in the differential,
refer to Engine and
differential70
Break-in procedures70
Bridging, refer to Jump-
starting99
Bulb changing, refer to Lamps
and bulbs93
Bulb replacement, refer to
Lamps and bulbs93
Burned fuel, refer to
Fuel specifications79
Buttons on the steering
wheel11
C
California laws
– Event Data Recorders92
– Proposition 65 warning5
Can holders, refer to Beverage
holders65
Capacity
– cargo bay, refer to
Weights109
Car battery, refer to Vehicle
battery97Car care, refer to the Caring
for your vehicle brochure
Care, refer to the Caring for
your vehicle brochure
Care products, refer to the
Caring for your vehicle
brochure
Cargo bay23
– capacity109
– floor panel93
– increasing capacity23
– opening and closing21,22
– opening from inside the
vehicle21,22
– opening from the outside21
– roller-blind cover65
Cargo loading
– stowing cargo73
– vehicle72
Car jack
– jacking points97
Car keys, refer to The key
set18
Carpet care, refer to the
Caring for your vehicle
brochure
Car phone, refer to the
separate Owner's Manual
Car radio, refer to the separate
Owner's Manual
Car wash, refer to the Caring
for your vehicle brochure
Catalytic converter, refer to
Hot exhaust system70
CD changer, refer to Owner's
Manual for Radio/Onboard
Computer
CD operation, refer to Owner's
Manual for Radio/Onboard
Computer
Center console, refer to
Around the center
console14
Center high-mount brake
lamp, bulb replacement96
Central locking
– from inside21
Central locking system19

Everything from A to Z
118 Lighting of the instruments,
refer to Instrument
lighting56
LIGHTS ON warning56
Light switch55
Loads, refer to Cargo
loading72
Loads, securing73
Locking the doors
– from inside21
– from outside19,20
Locking the vehicle
– from inside21
– from outside19
Longlife oils
– approved engine oils89
Low beams55
– automatic55
– bulb replacement94
– indicator lamp, defective
lamp13
Luggage compartment
– capacity109
– floor panel93
– increasing capacity23
– opening and closing21,22
– opening from inside the
vehicle21,22
– opening from the
outside21,22
Luggage compartment lid22
– emergency release23
– indicator lamp13
– opening from inside the
vehicle22
– opening from the outside22
– remote control19
M
M+S tires, refer to Winter
tires85
Maintenance91
– refer to Service Booklet
– refer to Service interval
display47,91
Making telephone calls, refer
to Owner's Manual for
TelephoneMalfunction
– automatic transmission with
Steptronic41
– convertible top28
– door lock20
– fuel filler door78
– luggage compartment lid22
– storage compartments64
– tailgate22
Malfunction of electrical
accessory97
Manual
– air distribution62
– air flow rate62
Manual convertible top26
Manual mode, refer to
Automatic transmission with
Steptronic41
Manual operation
– door lock20
– driver's door20
– fuel filler door78
– luggage compartment lid22
– power convertible top28
– storage compartments64
– tailgate22
– transmission lock, automatic
transmission40
Manual transmission40
Manufacturer5
Master keys with remote
control18
Maximum cooling62
Maximum speed
– with winter tires85
MD operation, refer to
Owner's Manual for Radio/
Onboard Computer
Measurements, refer to
Dimensions107,108
Mechanical seat31
Memory
– Seat memory32
– Vehicle Memory, Key
Memory18
Microfilter
– air conditioning60
– automatic climate control63Microphone, refer to Mobile
phone preparation
package67
Minidisc operation, refer to
Owner's Manual for Radio/
Onboard Computer
Mirrors34
– exterior mirrors
34
– heating34
– interior rearview mirror34
Mobile communications in the
vehicle, refer to the separate
Owner's Manual
Mobile phone, refer to the
separate Owner's Manual
Mobile phone preparation
package67
Mobile phones, use inside the
car, refer to Mobile
communications in the
vehicle70
Modifications, technical, refer
to For your own safety5
M Sports seat31
Multifunctional steering
wheel, refer to Buttons on
the steering wheel11
Multifunction switch
– refer to Turn signal
indicators/headlamp
flasher42
– refer to Washer/wiper
system43
N
Navigation system, refer to the
separate Owner's Manual
Neck support, refer to Head
restraints32
Nets64
New
– keys18
– tires84
Nylon rope, refer to Tow
rope101

Reference
At a glance
Controls
Driving tips
Mobility
119
O
OBD socket, refer to Socket
for On-Board Diagnosis
OBD91
Octane numbers, refer to Fuel
specifications79
Odometer46
Oil, refer to Engine oil87
Oil level87
– checking88
Oil service47
Onboard computer, refer to
Computer48
Onboard tool kit93
Opening
– from inside21
Opening and closing the
vehicle
– at the door lock20
– from inside21
– from outside19
– with the remote control19
Outlets, refer to
Ventilation59,63
Outside temperature display
– changing units of
measure48
– in the onboard computer48
Outside temperature
warning46
Overheated engine, refer to
Coolant temperature47
P
Paintwork, refer to the Caring
for your vehicle brochure
Parking brake39
– indicator lamp13,39
Parking lamps, refer to
Parking lamps/Low
beams55
Parking lamps/Low beams55
– bulb replacement94
Parking lock, refer to P
Parking40Passenger airbags
– deactivation36
– reactivation36
Passenger-side mirror tilt
function34
Pathway lighting56
Permissible axle load, refer to
Weights109
Permissible gross weight,
refer to Weights109
Pinch protection system
– windows25
Placing the vehicle in storage,
refer to the Caring for your
vehicle brochure
Plastic, refer to the Caring for
your vehicle brochure
Pollen
– refer to Microfilter60
– refer to Microfilter/activated-
charcoal filter63
Power
– windows, refer to
Windows25
Power convertible top27
Power failure97
Power output, refer to Engine
data106
Power steering, electric52
Power windows
– initializing25
Pressure, tires80
Pressure monitoring, tires,
refer to Flat Tire Monitor51
Protective function, refer to
Pinch protection system25
R
Radio, refer to the separate
Owner's Manual
Radio navigation, refer to the
separate Owner's Manual
Radio remote control key,
refer to Master keys with
remote control18
Rain sensor43
Reading lamps57Rear lamps
– bulb replacement96
– indicator lamp, defective
lamp13
Rearview mirror, refer to
Mirrors34
Rear window defroster
– air conditioning59
– automatic climate control63
Recirculated-air mode
– air conditioning59
– automatic climate control63
Recirculating the air, refer to
Recirculated-air
mode59,63
Reclining seat, refer to
Seats30
Refueling78
Releasing
– hood86
Remaining distance, refer to
Cruising range48
Remote control19
– luggage compartment lid19
– malfunction20
– tailgate19
Repairs
– refer to Maintenance
system91
Replacement key, refer to
New keys18
Replacement of tires84
Replacing lamps, refer to
Lamps and bulbs93
Replacing tires, refer to Wheel
and tire replacement84
Reserve
– indicator lamp, refer to Fuel
gauge46
Restraint systems
– for children36,37
– refer to Safety belts33
Reverse
– manual transmission40
Reverse gear
– automatic transmission with
Steptronic41
Roadside Assistance98
Roadside parking lamps56