2005 BMW 330XI IDRIVE SEDAN Owners Manual

Under the hood
184 3.The coolant level is correct if it is between
the maximum and minimum marks in the
filler neck, refer also to the diagram next to
the filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5.Turn the cap until there is an audible click.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.
Brake system
Malfunctions
Brake fluid
The warning lamps light up in red
even though the handbrake has been
released. A message appears on the
Control Display. Stop immediately.
The brake fluid in the reservoir has fallen to
below the minimum level. At the same time, a
considerably longer brake pedal travel may be
noticeable. Have the system checked without
delay.
Display of this malfunction on Cana-
dian models.
If you continue to drive the car, you may
have to apply more pressure to the brake
pedal and braking distances may be signifi-
cantly longer. Please adapt your driving style
accordingly.<
Brake pads
The warning lamps light up in red
even though the handbrake has been
released. A message appears on the
Control Display. The brake pads have
reached the safe limit for pad wear. Have brake
pads replaced immediately.
Display of this malfunction on Cana-
dian models.
For your own safety: use only brake pads
that BMW has approved for the corre-
sponding vehicle model. BMW is unable to
assess the suitability of brake pads it has not
approved and therefore cannot guarantee their
safety.<

Mobility
185Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Maintenance
The BMW Maintenance
System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The service schedule also
includes operations related to the vehicle's
comfort and convenience features, such as
replacement of the filters for the inside air. The
objective is to optimize efforts with respect to
minimal vehicle maintenance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
CBS Condition Based Service
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
On the Control Display, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page69:
>Engine oil
>Brakes: separately for front and rear
>Microfilter/activated-charcoal filter
>Brake fluid
>Spark plugs>Vehicle check
>Legally mandated inspections depending
on local regulations
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. Your BMW Service Advi-
sor can read out this data from the remote con-
trol unit, and propose an optimized mainte-
nance approach. Whenever you take your car in
for servicing you should therefore hand your
BMW Service Advisor the remote control unit
that you last used.
Make sure that the date is always set cor-
rectly, refer to page72; otherwise the
effectiveness of Condition Based Service CBS
is not assured.<
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.<

Maintenance
186
OBD Socket
The Onboard Diagnostics OBD interface
socket is located on the left of the driver's side
under the instrument panel and under a cover.
The cover has the letters OBD on it.
The purpose of the OBD system is to ensure
proper operation of the emissions control sys-
tem for the vehicle's lifetime. The system mon-
itors emissions-related components and sys-
tems for deterioration and malfunction.
An illuminated lamp informs you of
the need for service, not of the need
to stop the vehicle. However, the sys-
tems should be checked by your
BMW center at the earliest possible opportu-
nity.
Display of this malfunction on Cana-
dian models.
Under certain conditions, the indica-
tor will blink or flash. This indicates a
rather severe level of engine misfire. When this
occurs, you should reduce speed and consult
the nearest BMW center as soon as possible.
Severe engine misfire over only a short period
of time can seriously damage emissions control
components, especially the catalytic converter.
When the gas cap is not properly tight-
ened, the OBD system can detect the
vapor leak and the indicator will light up. If the
gas cap is subsequently tightened, the indicator
should go out within a few days.<
Event data recorders
Your vehicle may be equipped with one or more
sensing and diagnostic modules or a recording
device capable of recording or transmitting cer-tain vehicle data or information. In addition, if
you have a Subscription Service Agreement for
the BMW Assist system, certain vehicle infor-
mation may be transmitted or recorded in order
to provide such services.
Care
Important information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.

Mobility
187Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Replacing components
Onboard tool kit
The onboard tool kit is stored in a compartment
on the right-hand side of the luggage compart-
ment. Remove the cover.
Wiper blade replacement
1.Fold up the wiper arm.
2.Remove the cover. To do so, press the hook
on the bottom, see arrow.
Swing the
3.Fold the wiper blade upwards.
4.Remove the wiper blade in the direction of
the windshield, see arrow.In order to avoid damage, make sure that
the wiper arms are against the windshield
before you open the engine compartment.<
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.
Never touch the glass of new bulbs with
your bare fingers, as even minute
amounts of contamination will burn into the
bulb's surface and reduce its service life. Use a
clean tissue, cloth or similar, or hold the bulb by
its base.<
You can obtain a selection of replacement bulbs
at your BMW center.
When working on electrical systems,
always begin by switching off the con-
sumer in question, as otherwise short-circuits
could result. To avoid possible injury or equip-
ment damage when replacing bulbs, observe
any instructions provided by the bulb manufac-
turer.<
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.<
Xenon lamps*
The service life of these bulbs is very long and
the probability of a failure is very low, provided
that they are not switched on and off an unusual
number of times. If a xenon lamp fails neverthe-
less, switch on the fog lamps and continue the

Replacing components
188 journey with great care, provided that local leg-
islation does not prohibit this.
Have work on the xenon lighting system
performed only by your BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel. Due to the high electrical voltages
present, there is a risk of potentially fatal acci-
dents if work is performed inappropriate.<
Parking lamps, roadside parking lamps
In the event of a malfunction, please contact
your BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.
Halogen lamps
H7 bulb, 55 watts
Always wear gloves and eye protection;
the atmosphere within the H7 bulb is
pressurized. Otherwise there is a risk of injury if
the bulb is damaged.<
There are separate headlamp covers for low-
beam headlamps and high-beam headlamps.
Be careful when installing the covers, as
otherwise leaks could occur and cause
damage to the headlamp system.<
For checking and adjusting headlamp
aim, please contact your BMW center.<
Access to the lamps
The high-beam headlamp can be accessed
from the engine compartment, whereas the
low-beam headlamp is accessed through a flap
in the wheel well.1Cover for high-beam headlamp
2Cover for low-beam headlamp
3Turn signal
To remove the covers:
1.Fold the respective wire bracket to the side,
see arrows.
2.Flip open the cover and take it out of the
guide.
Follow the same steps in reverse order to reat-
tach the covers.
Access through the wheel well
Only for low-beam headlamps and turn signals:
1.Turn the wheel inwards.
2.Open the flap in the wheel well.
Changing low-beam and high-beam
bulbs
1.Remove the relevant cover for the head-
lamp.
2.Disconnect the plug from the lamp.

Mobility
189Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
3.Push the wire bracket to the side out of the
mounting, arrow1, and fold it down,
arrow2.
4.Remove the bulb.
5.Insert the new bulb.
6.Fold up the wire bracket and clamp it.
7.Connect the plug.
8.Reattach the cover.
Parking lamps, roadside parking lamps
5 watt bulb, W 5 W
1.Remove the cover for the high-beam head-
lamp.
2.Pull out the bulb holder, see arrow.
3.Remove and replace the bulb.
4.Insert the bulb holder.
5.Reattach the cover.
Turn signals, front
21 watt bulb, PY 21 W
or PY 21 W Silver Vision1.Turn bulb holder1 to the left and remove.
2.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
3.Insert bulb holder1.
4.Attach the flap to the wheel well.
Side-mounted turn signals
5 watt bulb, WY 5 W
or WY 5 W-ST (Silver Top)
1.Press back against the front edge of the
light with the tip of your finger, then pivot it
out.
2.Extract the bulb for replacement.
3.Insert the lamp.
Tail lamps
21 watt bulbs, P 21 W
The tail lamps are divided into two parts. One
part is in the luggage compartment lid, the other
is in the fender.

Replacing components
190 1Brake lamp
2Roadside parking lamp/tail lamp
3Turn signal
4Backup lamp
5Tail lamp
6Brake lamp
Lamps in the luggage compartment lid
1.Pry out the plastic plugs in the trim of the
luggage compartment lid using a screw-
driver and remove the trim.
2.Unfasten the bulb holder at the clip, see
arrow, and remove.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the trim of the luggage compart-
ment lid.
Fender-mounted lamps
1.Using a screwdriver, pry off the cover in the
luggage compartment or release the turn-
lock fastener by turning it counterclockwise
and remove the cover.
2.Unfasten the bulb holder at the clip, see
arrow, and pull out.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the cover in the luggage compart-
ment.
License plate lamp
5 watt bulb, C 5 W
1.Using a screwdriver, push the lamp to the
left in the flap of the lamp housing.
2.Take out the lamp towards the right and
change the bulb.
3.Insert the lamp.
Center brake lamp
This lamp uses LED technology for operation.
In the event of a malfunction, please contact
your BMW center or a workshop that works

Mobility
191Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
according to BMW repair procedures with cor-
respondingly trained personnel.
Light-emitting diodes LEDs
Light-emitting diodes installed behind translu-
c e n t l e n s e s s e r v e a s t h e l i g h t s o u r c e f o r m a n y o f
the controls and displays in your vehicle. These
light-emitting diodes, which operate using a
concept similar to that applied in conventional
lasers, are officially designated as Class 1 light-
emitting diodes.
Do not remove the covers or expose the
eyes directly to the unfiltered light source
for several hours at a time, as this could cause
irritation to the retina.<
Changing wheels
Your BMW is equipped with Run-Flat Tires as
standard. This removes the need to change a
wheel immediately in the event of a puncture.
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall, refer to
Run-Flat Tires, page178.
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, moreover, no spare wheel is
available. Your BMW center will be glad to
advise you. Refer also to New wheels and tires,
page178.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center.<
Jack mounting points
The jacking points are at the positions shown in
the illustration.
Vehicle battery
Battery care
The battery is 100 % maintenance-free, the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW center will be glad to advise in
all matters concerning the battery.
Charging battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine off. Connections, refer to Jump starting
on page194.
Disposal
Have old batteries disposed of by your
BMW center or hand them in to a recy-
cling center. Maintain the battery in an upright
position for transport and storage. Always
secure the battery against tipping over during
transport.<
Power failure
After a temporary power loss, the functioning of
some equipment may be limited and require
reinitialization. Individual settings may likewise
have been lost and will have to be repro-
grammed:
>Time and date
These values must be updated, refer to
page71.