2008 BMW 525I TOURING engine

Replacing components
244
Lamps and bulbs
Lamps and bulbs make an essential contribu-
tion to vehicle safety. You must be duly diligent
in replacing them. BMW recommends having
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 cloth, napkin, etc., or hold the bulb by its
metal socket.<
A selection of replacement bulbs is available at
your BMW center.
Only replace bulbs when cool, as other-
wise you may be burned.<
Whenever you perform any work on the
electrical system, turn off the systems/
consumers involved to prevent short circuits
from occurring. To avoid possible injury or
equipment damage when replacing bulbs,
observe any instructions provided by the bulb
manufacturer.<
When caring for the headlamps, please follow
the instructions under Care, starting on
page239.
For bulbs for which changing is not
described, and for checking and adjusting
headlamp aim, please contact your BMW cen-
ter.<
Light-emitting diodes LEDs
Light-emitting diodes installed behind translu-
cent lenses serve as the light source for many of
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, and never
stare into the unfiltered light for several
hours, as irritation of the retina could result.<
Halogen headlamps
The illustration shows the left-hand side of the
engine compartment.
1Cover cap for low beams
2Cover cap for high beams
To remove the cover caps:
>Low beams: press the detent, arrow, and
remove the cover from the guide.
>High beams: turn the cover cap to the left
and remove.
Always wear gloves and eye protection –
the atmosphere within the H7 bulb is
pressurized. Otherwise there is a danger of inju-
ries if the bulb is accidentally damaged during
replacement.<

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Low beams
H7 bulb, 55 watts
1.Turn the bulb holder to the left and remove.
2.Remove and replace the bulb.
High beams
H7 bulb, 55 watts
1.Turn the bulb holder to the left and remove.
2.Remove and replace the bulb.
Parking and roadside parking lamps
In the event of a malfunction, please go to your
BMW center or a workshop that works accord-
ing to BMW repair procedures with correspond-
ingly 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 one of these bulbs should
nevertheless fail, it is possible to continue driv-
ing with great caution using the fog lamps, pro-
vided traffic laws in your area do 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 voltage present in the
system, there is a danger of fatal injuries when
work is carried out improperly.<
Access to lamps
The illustration shows the left-hand side of the
engine compartment.
1Cover cap for parking and roadside parking
lamps, daytime running lamps
2Sealing cap for turning lamps
*
To remove the covers:
>Parking lamps and roadside parking lamps,
daytime running lamps: turn the cover cap
to the left and remove.
>Turning lamps: turn the sealing cap to the
left and remove.
Parking lamps and roadside parking
lamps, daytime running lamps
H8 bulb, 35 watts
1.Turn the bulb in the direction of the arrow, in
the opposite direction on the other side,
and remove.
2.Remove the connector and replace the
bulb.

Replacing components
248
Lamps in luggage compartment lid
License plate lamp
5-watt bulb, C5W
1.Insert screwdriver into the slot and press to
the right, refer to arrows. This releases the
lamp.
2.Remove the lamp and replace the bulb.
Sports Wagon:
Brake lamp and backup lamp
1.Turn the locks to the left and fold down the
trim.
2.Fold down the foam insulation.3.Pull out the bulb holder for the backup
lamp1 or brake lamp2 downward.
4.Backup lamp: remove the bulb for replace-
ment.
Brake lamp: apply gentle pressure to the
bulb while turning it to the left for removal
and replacement.
Changing wheels
Safety precautions in the event of a flat
tire or wheel change: park the vehicle as
far as possible from passing traffic and on solid
ground. Switch on the hazard warning flashers.
Have all vehicle occupants get out of the vehicle
and ensure that they remain outside the imme-
diate area in a safe place, such as behind a
guardrail.
If a warning triangle
* or portable hazard warning
lamp
* is r e q u ir e d, s et i t up o n t h e ro a d s i d e a t a n
appropriate distance from the rear of the vehi-
cle. Comply with all safety guidelines and regu-
lations.
Change the wheel only on a level, firm surface
which is not slippery. The vehicle or the jack
could slip to the side if you attempt to raise the
vehicle on a soft or slippery surface such as
snow, ice, tiles, etc.
Position the jack on a firm support surface.
Do not use a wooden block or similar object as a
support base for the jack, as this would prevent
it from extending to its full support height and
reduce its load-carrying capacity.
To avoid serious or fatal injury: never lie under
the vehicle, and never start the engine while it is
supported by the jack.<

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3.Check and correct the tire inflation pressure
at the earliest opportunity.
Protect valve stems with valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Initialize the Flat Tire Monitor, refer to
page94, or reset the Tire Pressure Monitor,
refer to page96.
5.Replace the damaged tire as soon as possi-
ble and have the new wheel/tire balanced.
Driving with compact wheel
Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
The driving characteristics change, for example
reduced track stability on braking, extended
braking distance, and altered self-steering
characteristics in the limit range. In conjunction
with winter tires, these characteristics are more
pronounced.
Only one compact wheel may be
mounted. Restore the wheels and tires to
their original size as quickly as possible. Failure
to do so is a safety risk.<
Vehicle battery
Battery care
The battery is 100 % maintenance-free, i.e., 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 switched off. Connections, refer to
Jump starting on page254.
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
restrain the battery to prevent it from tipping
over during transport.<
Power failure
Following a temporary power failure, e.g. due to
a discharged battery, the use of some equip-
ment will be restricted, requiring its reinitializa-
tion. In the same way, individual settings are lost
and must be updated again:
>Seat, mirror and steering wheel memory
The positions must be stored again, refer to
page48.
>Time and date
Must be updated again, refer to page86.
>Radio
Radio stations must be stored again, refer
to page174.
>Navigation system
You must wait until the system becomes
functional again, refer to page142.
>Glass roof, electric
It may only be possible to raise the glass
roof. The system must be initialized, refer to
page42.
>Panorama glass roof
It may only be possible to raise the glass
roof. The system must be reinitialized, refer
to page44.
>Active steering
The system is deactivated and must be
reinitialized, refer to page98. Until then,
larger steering wheel movements are
required.
>Power windows
The pinch prevention system for the power
windows must be reinitialized, refer to
page40.
Talk to your BMW center before placing
the stored vehicle back in service.

Giving and receiving assistance
254
Sedan
Loosen the wing nut to open.
Sports Wagon
Release the two quick-release fasteners and
fold down the trim piece.
First-aid kit*
Some of the articles contained in the first-aid kit
have a limited service life. Therefore, check the
expiration dates of the contents regularly and
replace the contents concerned in good time if
necessary.
Sedan
The first-aid kit is located in the luggage com-
partment lid.Loosen the wing nut to open.
Sports Wagon
The first-aid kit is located in the right side panel
of the cargo bay. Before opening the side panel,
pull the retaining strap
* toward the rear by its
rear end and unhook it.
Roadside Assistance*
The Roadside Assistance of the BMW Group
offers you assistance in the event of a break-
down around the clock, including on weekends
and public holidays.
The phone numbers of the Roadside Assis-
tance in your home country can be found in the
Contact brochure.
With BMW Assist you can contact the Roadside
Assistance of the BMW Group for assistance in
the event of a breakdown directly via iDrive,
refer to page210.
Jump starting
When your battery is discharged, you can use
two jumper cables to start your BMW with
power from the battery in a second vehicle. You
can also use the same method to help start
another vehicle. Use only jumper cables with
fully-insulated clamp handles.
To avoid the risk of potentially fatal injury,
always avoid all contact with electrical
components while the engine is running. Care-
fully adhere to the following sequence, both to
prevent damage to one or both vehicles, and to
guard against possible personal injuries.<

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Preparation
1.Check whether the battery of the other
vehicle has a voltage of 12 Volts and
approximately the same capacitance in Ah.
This information can be found on the bat-
tery.
2.Switch off the engine of the assisting vehi-
cle.
3.Switch off any electrical systems and com-
ponents in both vehicles.
There must not be any contact between
the bodies of the two vehicles, otherwise
there is a danger of shorting.<
Connecting jumper cables
To avoid personal injury from sparks, fol-
low this sequence when connecting
jumper cables.<
In your BMW, the so-called jump-starting termi-
nal in the engine compartment serves as a pos-
itive terminal for the battery, also refer to engine
compartment overview on page233. The cover
cap is marked with a +.
1.Fold open the cover of the BMW jump-
starting terminal. To do so, pull the tab.
2.Attach one end of the jumper cable plus/+
to the positive terminal of the battery or a
jump-starting terminal of the vehicle provid-
ing assistance.
3.Attach the second end of the cable to the
positive terminal of the battery or to a start-
ing-aid terminal of the vehicle to be started.
4.Attach one end of the jumper cable minus/–
to the negative terminal of the battery or to
an engine or body ground of the assisting
vehicle.Your BMW has a special nut as body ground
or negative terminal.
5.Attach the second end of the cable to the
negative terminal of the battery or to the
engine or body ground of the vehicle to be
started.Starting engine
1.Start the engine on the assisting vehicle
and allow it to run at idle for several minutes
at slightly increased speed.
2.Start the engine on the other vehicle in the
usual way.
If the first starting attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge.
3.Let the engines run for a few minutes.
4.Disconnect the jumper cables by reversing
the connection sequence.
Check the battery and recharge if necessary.
Never use spray fluids to start the
engine.<
Tow-starting and towing
Observe applicable laws and regulations
for tow-starting and towing.<
Do not transport any passengers other
than the driver in a vehicle that is being
towed.<
Using tow fitting
Always keep the screw-in tow fitting with the
vehicle. It can be screwed in at the front or rear
of the BMW.

Giving and receiving assistance
256 Sedan:
It is located in the toolkit in the luggage com-
partment lid, refer to page243.
Sports Wagon:
It is located in the toolkit behind the left side
panel in the cargo bay, refer to page243.
Use only the tow fitting provided with the
vehicle and screw it all the way in. Use the
tow fitting for towing only on roads. Avoid lateral
loading of the tow fitting, e.g. do not lift the vehi-
cle by the tow fitting. Otherwise damage to the
tow fitting and the vehicle can occur.<
Access to screw thread
Press the arrow symbol on the cover in the
bumper.
Front
Rear
Being towed
Make sure that the ignition is switched on,
refer to page61, otherwise the low
beams, tail lamps, turn signals and windshield
wipers would not be available. Do not tow the
vehicle with the rear axle raised, as otherwise
the steering can turn to the left or right. When
the engine is stopped, there is no power assist. This then requires increased effort for braking
and steering. Active steering is deactivated and
larger steering wheel movements are
required.<
Switch on the hazard warning flashers depend-
ing on the local regulations. If the electrical sys-
tem fails, mark the vehicle to be towed, e.g. with
a sign or warning triangle in the rear window.
Manual transmission
Gearshift lever in neutral position.
Automatic and sport automatic
transmission
Before towing, manually release the
transmission lock, even if there is no mal-
function in the transmission. Otherwise there is
a risk that the transmission lock will engage dur-
ing towing.<
Manually unlocking and locking transmission
lock, refer to page65.
Do not exceed a towing speed of mph/
70 km/h and a towing distance of
90 miles/150 km; otherwise the automatic
transmission may be damaged.
Towing methods
Do not lift vehicle by tow fitting or body
and chassis parts, otherwise damage may
result.<
In some countries, towing with tow bars or
ropes in public traffic is not permitted. Familiar-
ize yourself with the regulations on towing in the
respective country.
With tow bar
The towing vehicle may not be lighter
than the vehicle to be towed, otherwise it
will not be possible to reliably control vehicle
response.<
The tow fittings used should be on the same
side on both vehicles. Should it prove impossi-
ble to avoid mounting the tow bar at an offset
angle, please observe the following:
>Clearance and maneuvering capability will
be sharply limited during cornering.

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>When mounted at an angle, the tow bar will
exert lateral forces, tending to push the
vehicle sideways.
Only attach the tow bar to the tow fittings,
as attachment to other vehicle parts can
lead to damage.<
With tow rope
When starting off in the towing vehicle, make
sure that the tow rope is taut.
To avoid jerking and the associated
stresses on vehicle components when
towing, always use nylon ropes or nylon straps.
Only attach tow ropes to the tow fittings, as
attachment to other vehicle parts can lead to
damage.<
With tow truck
Have the BMW transported with a tow truck
with a so-called lift bar or on a flat bed.
With a tow truck: xDrive
Do not tow a BMW with xDrive with just
the front or rear axle raised, otherwise the
wheels could lock up and the transfer case
could be damaged.<
Have the BMW transported only on a flatbed
surface.
Tow-starting
Do not tow-start the vehicle if possible, but
instead start the engine by means of jump start-
ing, refer to page254. With a catalytic con-
verter, tow-starting should only be carried out
with the engine cold, and with automatic trans-
missions, the engine cannot be started by tow-
starting.
1.Switch on the hazard warning flashers,
comply with country-specific regulations.
2.Switch on the ignition, refer to page61.
3.Shift into 3rd gear.
4.Tow-start with the clutch completely
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch again completely.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.