2008 BMW 335XI engine

Replacing components
228
Replacing components
Onboard tool kit
Sedan
The onboard tool kit is stored in a compartment
on the right-hand side of the cargo bay.
Remove the cover.
Sports Wagon
The onboard tool kit is stored in a compartment
on the left-hand side underneath the cargo bay
floor panel.
Wiper blades
1.Fold up the wiper arm.
2.R e m o v e t h e c o v e r . T o d o s o , p r e s s t h e h o o k
on the bottom, see arrow.
3.Fold the wiper blade upwards.
4.Remove the wiper blade in the direction of
the windshield, see arrow.
To avoid damage, make sure that the
wiper arms are against the windshield
before you open the engine compartment.<

Replacing components
230 There are separate headlamp covers for low-
beam headlamps and high-beam headlamps.
Be careful when installing the covers, oth-
erwise leaks could occur and cause dam-
age 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 bulb socket
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. To do so,
turn the fastener counterclockwise using a
coin, for example.
Changing low-beam and high-beam
bulbs
1.Remove the relevant cover for the head-
lamp.
2.Disconnect the plug from the lamp.
3.Push the wire bracket to the side out of the
mounting, arrow1, and fold it down,
arrow2.
4.Remove the bulb.
5.Insert new bulb as shown in the detail of the
illustration above.
6.Fold up the wire bracket and engage it.
7.Connect the plug.
8.Reattach the cover.
Parking lamps, roadside parking lamps
5-watt bulb, W5W

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Sports Wagon
1.Use a screwdriver to press out the cover at
the clips, see arrows, and fold it downward.
2.Fold away the foam insulating material.
3.Release the bulb holder at the clip, see
arrow, and remove.
4.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
5.Re-engage the bulb holder so that it audibly
clicks into place.
6.Reattach the trim of the tailgate.
License plate lamp and center brake
lamp
These lamps use LED technology for operation.
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.
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.For information on continuing to drive with a
damaged tire, refer to Indication of a flat tire on
page90.
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall, refer to
Run-Flat Tires, page219.
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, no spare wheel is available. Your
BMW center will be glad to advise you. Refer
also to New wheels and tires, page219.
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 the 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 page236.

Giving and receiving assistance
236
First aid pouch*
Some of the articles contained in the first aid
pouch have a limited service life. Therefore,
check the expiration dates of the contents reg-
ularly and replace any items in good time, if nec-
essary.
Sedan
The first aid pouch is located on the right-hand
side of the cargo bay in a storage area.
Sports Wagon
The first aid pouch is located in the cargo bay
behind the left-hand trim panel.
Warning triangle*
Sedan
The warning triangle is located on the left-hand
side of the cargo bay. Press the tab to take it
out.
Sports Wagon
The warning triangle is located behind the left-
hand trim panel in the cargo bay. Press the tab
to take it out.
Jump starting
If the car's own battery is flat, your BMW's
engine can be started by connecting two
jumper cables to another vehicle's battery. You
can also use the same method to help start
another vehicle. Only use jumper cables with
fully-insulated clamp handles.
Do not touch any electrically live parts
when the engine is running, or a fatal acci-
dent may occur. Carefully adhere to the follow-
ing 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 consumers 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
Connect the jumper cables in the correct
order, so that no sparks which could
cause injury occur.<
Your BMW has a jump-starting connection in
the engine compartment which acts as the bat-
tery's positive terminal, refer also to the Engine
compartment overview on page222. The cap is
marked with +.
1.Pull the cap of the BMW jump-starting con-
nection up to remove.
2.Attach one terminal clamp of the plus/+
jumper cable to the positive terminal of the
battery or a starting-aid terminal of the vehi-
cle providing assistance.
3.Attach the second terminal clamp of the
plus/+ jumper cable to the positive terminal
of the battery or a starting-aid terminal of
the vehicle to be started.
4.Attach one terminal clamp of the minus/–
jumper cable 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 pole.
5.Attach the second terminal clamp of the
minus/– jumper cable to the negative termi-
nal of the battery or to the engine or body
ground of the vehicle to be started.
Starting the engine
1.Start the engine of the donor vehicle and
allow it to run for a few minutes at slightly
increased idle speed.
2.Start the engine on the other vehicle in the
usual way.
If the first start 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 above connecting sequence.
If necessary, have the battery checked and
recharged.
Never use spray fluids to start the
engine.<
Tow-starting, towing away
Observe the applicable laws and regula-
tions for tow-starting and towing vehi-
cles.<
Do not transport any passengers other
than the driver in a vehicle that is being
towed.<

Giving and receiving assistance
238
Using a tow fitting
The screw-in tow fitting must always be carried
in the car. It can be screwed in at the front or
rear of the BMW.
Sedan: it is stored in the onboard tool kit under-
neath the cover on the right-hand side of the
cargo bay, refer to page228.
Sports Wagon: it is stored in the onboard tool kit
underneath the cover on the left-hand side of
the cargo bay, refer to page228.
Use only the tow fitting provided with the
vehicle and screw it all the way in. Use the
tow fitting for towing on paved roads only. Avoid
lateral loading of the tow fitting, e.g. do not lift
the vehicle by the tow fitting. Otherwise the tow
fitting and the vehicle could be damaged.<
Access to screw thread
Rectangular cover panel in bumper:
Press on the upper edges of the cover panel.
Front
Rear
Being towed
Make sure that the ignition is switched on,
refer to page56, otherwise the low-beam headlamps, tail lamps, turn signal indicators and
windshield wipers may be unavailable.
Power steering assistance is not available when
the engine is not running. Thus, braking and
steering will require increased effort. Active
steering is not active and it will be necessary to
turn the steering wheel further.<
Switch on the hazard warning flashers, depend-
ing on local regulations.
Manual transmission
Gearshift lever in idle position.
Automatic transmission
Selector lever in position N.
Changing selector lever positions, refer to
page59.
Do not exceed a towing speed of 45 mph
or 70 km/h and a towing distance of
90 miles/150 km, otherwise the automatic
transmission may be damaged.<
Towing methods
In some countries, it is illegal to tow your vehicle
with a tow bar or tow rope on public highways.
Please familiarize yourself with the relevant
towing regulations for the country in which you
are driving.
With a tow bar
The towing vehicle must not be lighter
than the towed vehicle, otherwise it may
be impossible to maintain control.<
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 angle,
please observe the following:
>Clearance and maneuvering capability will
be sharply limited during cornering.
>The tow bar will generate lateral forces if it is
attached offset.
Attach the tow bar to the tow fittings only,
as attaching it to other parts of the vehicle
could result in damage.<

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With a 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.
Attach the tow rope to the tow fittings only, as
attaching it to other parts of the vehicle could
result in damage.<
With a tow truck: vehicle without xDrive
Have the BMW transported with a tow truck
with a so-called lift bar or on a flat bed.
Do not tow the vehicle with just the rear axle
raised as this may cause the steering to turn.
Do not lift the vehicle by a tow fitting or
body and chassis parts, otherwise dam-
age may result.<
With a tow truck: vehicle with 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 on a flatbed surface
only.
Tow-starting
Avoid tow-starting the vehicle whenever possi-
ble; instead, jump-start the engine, refer to
page236. Vehicles with a catalytic converter
should only be tow-started when the engine is
cold, vehicles with an automatic transmission
cannot be tow-started at all.
1.Switch on hazard warning flashers, comply
with local regulations.
2.Switch on the ignition, refer to page56.
3.Shift into 3rd gear.
4.Have the vehicle tow-started with the clutch
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch completely again.
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.
With xDrive: do not activate Hill Descent
Control HDC when the vehicle is being
tow-started, page87.<

Technical data
242
Technical data
Engine data
Sedan
Sports Wagon
323i (Canada)328i/xi335i/xi
Displacement cu in/cmμ152.4/2,497 182.8/2,996 181.8/2,979
Number of cylinders 666
Maximum power output hp 200 230 300
at engine speed rpm 6,000 6,500 5,800
Maximum torque lb ft/Nm 180/244 200/270 300/407
at engine speed rpm 4,000 - 5,000 2,750 1,400 - 5,000
328i/xi
Displacement cu in/cmμ182.8/2,996
Number of cylinders 6
Maximum power output hp 230
at engine speed rpm 6,500
Maximum torque lb ft/Nm 200/270
at engine speed rpm 2,750