2010 BMW 3 SERIES Owners Manual

Controls
111Reference
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Driving tips
Communications
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Mobility
Partition net
Do not let the partition net retract; other-
wise, there is a risk of danger and the par-
tition net could be damaged.<
Use the loop strap to pull the partition net out of
the casing. Grip the bar on both ends and insert
it into the retaining fixtures, arrow 1. This can
best be done from the rear seat.
When you no longer require the partition net,
grip both ends of the bar and take it out of the
retaining fixtures, arrow 2. Let the partition net
slide into the casing slowly.
With cargo area expanded
1.Fold down both rear seat backrests, refer to
Expanding the cargo area.
2.Use the buttons to unlatch the casing on
both sides, arrow 1.3.Pull the casing out backwards, arrow 2,
without tilting it.
4.Slide the casing into the guides on the
backs of the seat backrests.
5.Carefully pull out the partition net and insert
it into the front retaining fixtures, refer to
Partition net above. This can best be done
from the front seat.
Follow the same steps in reverse order to return
the partition net and seats to their original posi-
tions. Finally, slide the casing into both retaining
fixtures on the sides until it engages. Tug on the
casing to check if it is properly locked in place.
Storage compartments inside
the cargo area
Sedan
Depending on your vehicle's equipment, the
following storage spaces can be found in the
cargo area:
>Left storage compartment, e.g. for storing a
box of cleaning tissues or up to 12 CD jack-
ets, depending on vehicle equipment ver-
sion
>Net
* for securing smaller objects, to be
attached to the fixtures on the floor panel
>Hooks for hanging up, e.g., shopping bags
or tote bags
>Rubber strap on the left trim panel for
securing small objects such as a folding
umbrella
>Net for small objects on the right trim panel
of the cargo area

Practical interior accessories
112 >Folding, removable box
* under the floor
panel, e.g. for wet or dirty items
>Stowage compartment under the floor
panel
>Insertable dividers
* and removable storage
tray for the storage compartment under the
floor panel
Sports Wagon
The following storage spaces can be found in
the cargo area:
>Umbrella holder
* on the bottom of the par-
tition net casing
>Rubber strap on the left
* and right trim
panel for securing small objects such as a
folding umbrella
>Hooks for hanging up shopping bags or tote
bags, for example, on the left and right sides
of the cargo area
>Net for small objects on the right trim panel
of the cargo area
>Stowage compartment under the floor
panel
Depending on your vehicle's equipment, other
storage spaces can be found in the cargo area:
>Net
* for securing smaller objects, to be
attached to the fixtures on the floor panel
>Net
* on the left side trim of the cargo area
instead of the rubber strap
>Reversible floor panel with integrated plas-
tic cover
* for cargo area or bumper
>Folding, removable box
* under the floor
panel, e.g. for wet or dirty items>Insertable dividers
* and removable storage
tray for the storage compartment under the
floor panel
Folding up the floor panel
Do not exceed the maximum permissible
load of 55 lbs/25 kg for the storage com-
partment under the floor panel; otherwise, dam-
age could result.<
Sedan
Press the floor panel against the ceiling of the
cargo area; a locking device holds the floor
panel in place. To detach the floor panel, pull it
out of the locking device.
Sports Wagon
Fold up the floor panel and take it out or lean it
forward.
Lashing eyes
You will find lashing eyelets in the cargo area for
securing luggage items with nets or tensioning
straps, refer to page120.
Ski bag*
The ski bag is designed for safe, clean transport
of up to 4 pairs of standard skis or up to
2snowboards.
With the ski bag you can stow skis with a length
of up to 6 ft 10 in/2.10 m. When skis of 6 ft 10 in/
2.10 m length are loaded, the overall capacity of
the ski bag is reduced due to its tapered design.

Controls
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Loading
1.Fold down the center armrest.
2.Press the button, reach into the recess and
fold down the cover.
3.Open the Velcro fastener, spread the ski
bag between the front seats and insert the
skis or snowboards.
The zip fastener makes objects in the ski
bag easier to reach.
4.Insert the latch plate of the ski bag's retain-
ing strap in the center belt buckle.
Only place clean skis in the ski bag. Wrap sharp
edges to prevent damage.
Securing cargo
After loading, secure the ski bag and its con-
tents. Tighten the retaining strap on the ten-
sioning buckle for this purpose.Secure the ski bag in the manner
described; otherwise, it could endanger
the car's occupants, e.g. in case of heavy brak-
ing or sudden swerving.<
To store the ski bag, perform the steps
described for loading in reverse order.
Removing the ski bag
The ski bag can be completely removed, e.g. for
faster drying or to allow you to use other inserts.
1.Fold down the center panel in the rear seat
backrest.
2.Pull the handle, arrow1.
3.Pull out the insert, arrow 2.
For more information on the various
inserts available, contact your BMW cen-
ter.<

Driving tips
This section provides you with information
useful in dealing with specific driving and
operating conditions.
Driving tips

Things to remember when driving
116
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. Please follow the instructions below
in order to achieve the optimal service life and
economy of operation for your vehicle.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at varying engine and road speeds but do
not exceed:
>Gasoline engine
4,500 rpm or 100 mph/160 km/h
>Diesel engine
3,500 rpm or 93 mph/150 km/h
Avoid full-throttle operation and use of the
transmission's kickdown mode.
After driving 1,200 miles/2,000 km
Engine and vehicle speeds can be gradually
increased.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in
period. Therefore, drive cautiously during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive cautiously during this break-in
period.
Clutch
The function of the clutch reaches its optimal
level only after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
The same break-in procedures should be
observed if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life.
Saving fuel
The fuel consumption of your vehicle depends
on several factors. You can lower fuel consump-
tion and the environmental impact by taking
certain measures, adjusting your driving style
and having the vehicle serviced regularly.
Remove any unneeded cargo
Additional weight increases fuel consumption.
Remove any mounted parts after you
have finished using them
Remove unneeded additional mirrors, the roof
rack and the rear luggage rack after use.
Mounted parts affect the vehicle's aerodynam-
ics and increase fuel consumption.
Close the windows and glass roof
An open glass roof or window causes higher air
resistance and thus increases fuel consump-
tion.
Check tire inflation pressure regularly
Check the tire inflation pressure at least twice a
month and before embarking on a long journey,
and correct it if necessary.
Low tire inflation pressure causes higher rolling
resistance and thus increases fuel consumption
and tire wear.
Set off immediately
Do not let the engine warm up while the car is
still standing, but set off immediately at moder-
ate engine speed. This is the fastest way for the
cold engine to reach its operating temperature.

Driving tips
117Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
Drive defensively
Avoid unnecessary acceleration and braking
maneuvers. To do so, keep an adequate dis-
tance between you and the vehicle in front of
you. A defensive and smooth driving style
keeps fuel consumption down.
Avoid high engine speeds
Only use first gear when setting off. In second
and higher gears, accelerate without hesitation
or pauses. When accelerating, shift up before
reaching high engine speeds.
When you reach the desired speed, shift into
the highest applicable gear and drive with the
engine speed as low as possible and at a con-
stant speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
Coasting
When approaching a red light, take your foot off
the accelerator and coast to a stop in the high-
est applicable gear.
O n a d o w n h il l s lo p e , t a k e y o u r f o o t o f f t h e a c c el -
erator and coast in a suitable gear.
The fuel supply is interrupted when coasting.
Switch off the engine during lengthy
stops
Switch off the engine when stopping for lengthy
periods, e.g. at traffic lights, railroad crossings
or in traffic congestions. You achieve fuel sav-
ings even if standing time is as short as approx.
4 seconds.
Switch off functions you do not need at
the moment
Functions such as the air conditioner, seat
heating or rear window defroster draw large
amounts of power and consume additional fuel.
Especially in city traffic and in stop and go driv-
ing they have a considerable impact. Therefore,
switch these functions off when they are not
really needed.
Have the vehicle serviced
Have the vehicle serviced regularly to achieve
good economy and a long vehicle life. BMW
recommends having the vehicle serviced at a
BMW center. Also note the BMW service sys-
tem, refer to page223.
General driving notes
Close the trunk lid/tailgate
Operate the vehicle only when the trunk
lid/tailgate and rear window are closed.
Otherwise, exhaust fumes could enter the inte-
rior of the vehicle.<
If the vehicle must be driven with the trunk lid/
tailgate open:
1.Close all windows and the glass roof.
2.Greatly increase the air volume of the auto-
matic climate control system, refer to
page98.
Hot exhaust system
In all vehicles, extremely high tempera-
tures are generated in the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to various sections of the exhaust sys-
tem, and never apply undercoating to them.
When driving, standing at idle and while park-
ing, take care to avoid possible contact
between the hot exhaust system and any highly
flammable materials such as hay, leaves, grass,
etc. Such contact could lead to a fire, with the
risk of serious personal injuries and property
damage. Do not touch hot exhaust tail pipes.
Otherwise, there is a risk of burns.<
Diesel particulate filter*
The diesel particulate filter collects soot parti-
cles and burns them periodically at high tem-
peratures. This cleaning process takes several
minutes. During cleaning, you may notice that
the engine temporarily runs less smoothly and
that a somewhat higher engine speed is neces-
sary to achieve the accustomed performance.
Also, noises may be heard and a slight amount
of smoke may emerge from the exhaust, even

Things to remember when driving
118 for a short period after the engine is switched
off.
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a wedge
of water can form between tires and road sur-
face. This situation, known as hydroplaning,
means that the tire can completely lose contact
with the road surface, so that neither the car can
be steered nor the brake be properly applied.<
The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page215.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. Otherwise, the
vehicle's engine, the electrical systems and the
transmission may be damaged.<
Use the parking brake on inclines
On inclines, do not hold the vehicle for a
lengthy period using the clutch; use the
parking brake instead. Otherwise, greater
clutch wear will result.<
For more information about the drive-off assis-
tant, refer to page84.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pressure on the brake pedal
every few miles. Monitor traffic conditions to
ensure that this maneuver does not endanger other road users. The heat generated in this
process helps dry the pads and rotors to ensure
that full braking efficiency will then be available
when you need it.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least braking is required. Even
light but consistent brake pressure can lead to
high temperatures, brake wear and possibly
even brake failure.<
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page57.
Never drive with the clutch held down,
with the transmission in neutral or with
the engine switched off; otherwise, engine
braking action will not be present or there will be
no power assistance to the brakes or steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals; otherwise, pedal function could be
impaired.<
Corrosion on brake rotors
When the vehicle is driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to respond with a pulsating
effect that even extended application will fail to
cure.